JP2015052519A - Signal processing device and signal processing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a signal processing device and a signal processing method capable of efficiently performing the setting and the change of a desired parameter even without being able to grasp a hierarchical relation of each parameter when a hierarchical structure of the parameter becomes complicated.SOLUTION: When a guide mechanism is validated, parameters 62a to 62h which can be set and altered are displayed in a main display part 31. When the parameter value of "Reference Signal Using Cell ID" which is, for example, a parameter 62f is set and altered from among the parameters 62a to 62h, a menu to be selected is configured to be prompted by a "color" so as to select a menu ("Common Setting") of an F3 key which is displayed in "the same color" as the parameter 62f from among the menus displayed in F1 to F8 keys in a sub display unit 32.

Description

  The present invention relates to a signal processing device and a signal processing method applied to a signal analysis device such as a spectrum analyzer.

  Conventionally, as a signal processing apparatus for analyzing a signal or the like, for example, a modulation signal analyzing apparatus described in Patent Document 1 is known.

  The modulation signal analysis device described in Patent Document 1 is incorporated in a base station or a mobile station in a mobile communication system, and tests reception performance in a reception module that receives a CDMA (Code Division Multiple Access) modulation signal. In particular, in the receiving module evaluation system, the output signal of the test target receiving module is taken as a measurement signal and analyzed.

  Usually, such a modulation signal analyzing apparatus is configured such that processing conditions for various measurement items can be set as parameters (setting values) or can be switched when performing analysis processing. ing.

  That is, the conventional modulation signal analyzing apparatus displays not only the result of the analysis processing but also the setting items such as the processing conditions on the display screen, and the hardware key of the operation unit included in the apparatus main body. By operating the parameter value, it is possible to set and change parameter values for each setting item.

  However, for example, when performing analysis processing of a wireless communication system by the modulation signal analysis device, the number of parameters that can be set is increased, and it is difficult to assign a hardware key for each parameter.

  Therefore, in recent years, a modulation signal analysis apparatus has been developed in which function keys capable of dynamically switching assigned parameters are provided to reduce the number of hardware keys.

  That is, this type of modulation signal analyzing apparatus hierarchically structures increasing parameters, and dynamically switches function keys according to the parameters of each layer, thereby setting and changing a plurality of parameters with one function key. Is made possible.

Japanese Patent No. 3782382 (Japanese Patent Laid-Open No. 2004-96263)

  However, by adopting function keys, it is possible to cope with an increase in the number of parameters that can be set and changed, but as the number of parameters increases, the hierarchical structure becomes more complicated. There was a problem that setting and changing could not be performed efficiently.

  Thus, in the past, as the hierarchical structure of parameters has become complex, it has been necessary to grasp the hierarchical relationship of each parameter in order to understand the operation procedure until the desired parameter is reached. .

  The present invention has been made in view of the above-described problems. Assuming that the hierarchical structure of setting items has become complicated, setting and changing desired setting item values can be performed without grasping the hierarchical relationship between the setting items. An object of the present invention is to provide a signal processing apparatus and a signal processing method capable of efficiently performing the above.

  A signal processing device (signal analysis device 10) according to claim 1 of the present invention is a signal processing means (analysis processing unit 10a) that performs predetermined signal processing on a signal under measurement (input signal S) from a device under test. Based on the output signal (digital data) from the signal processing means, a graph (α) in which the horizontal axis is frequency and the vertical axis is amplitude level (decibel) is displayed on the main display screen (main display unit 31). And a plurality of function keys individually assigned with menus corresponding to setting items (a plurality of parameters) for various processing items (measurement items) for performing the predetermined signal processing on the signal under measurement. Display means (display device 30) for displaying (function display keys F1 to F8 / Fx keys F1 to F8) on the sub display screen (sub display unit 32), and set values of the respective setting items Control means (control device 40) for controlling the signal processing means on the basis of the parameter value and displaying the result of signal processing on the signal under measurement on the main display screen, The hierarchical information storage means (hierarchical information storage) for storing hierarchical information (hierarchical information management table 43a) for managing the hierarchical relationship of the setting items in the hierarchical structure (menu structure). Part 43) and color information for assigning different colors (display color data) to the lower setting items corresponding to the upper setting items having upper and lower hierarchical relationships based on the hierarchical information. Color information assigning means (color information storage unit 44) for storing (display color data management table 44a), and the control means sets the setting on the main display screen. Setting items that can be set and changed in values are selectively displayed, and setting items in each layer corresponding to each of the setting items selectively displayed on the main display screen based on the layer information In accordance with the color information, the main display is set according to the setting item display control means (parameter display control unit 40a) for displaying each of the item names (parameter names) on the plurality of function keys on the sub display screen as the menu Each of the setting items selectively displayed on the screen and a menu corresponding to each of the setting items and displayed on the plurality of function keys on the sub display screen are displayed in the same color. Display control means (color display control unit 40b).

  With this configuration, in the signal processing device according to claim 1 of the present invention, the setting items that can be set and changed selectively displayed on the main display screen are sub-displayed corresponding to the setting items. Since the same color as the menu displayed on each function key on the screen is displayed, it is possible to specify the function key to be operated to set and change the desired setting value by color It becomes. Therefore, the signal processing apparatus according to claim 1 of the present invention can always guide the best operation procedure even if the hierarchical structure of the setting items becomes more complicated as the number of setting items increases.

  Therefore, the signal processing apparatus according to claim 1 of the present invention can easily set and change a desired set value by the best operation procedure even when the hierarchical relationship of each set item is not grasped. It will be.

  Further, in the signal processing device according to claim 2 of the present invention, the control means displays the display of the plurality of function keys in the hierarchy information on condition that any one of the plurality of function keys is selected. Based on this, it is configured to further include menu switching means (parameter display switching unit 40c) for switching to a menu corresponding to a setting item lower than the displayed menu.

  With this configuration, the signal processing device according to claim 2 of the present invention automatically switches the function key display to a menu corresponding to a setting item lower than the displayed menu in accordance with a key input operation. Therefore, without using a pointing device such as a touch panel, mouse, or trackball, simply operate the function keys displayed in the same color as the setting items that are selectively displayed on the main display screen in order. This makes it possible to set and change a desired set value.

  In the signal processing device according to claim 3 of the present invention, a storage unit (RAM 41) that stores the setting values of the setting items, an operation unit (operation unit 50) that sets and changes the setting values, The control means further includes an update means (setting / setting) for updating the setting value stored in the storage means on condition that a setting value to be set and changed is input via the operation means. The update unit 40d) is further included.

  With this configuration, the signal processing device according to claim 3 of the present invention sets and sets a desired setting value without grasping an operation procedure until reaching a desired setting item for setting and changing the setting value. It can be easily changed.

  Further, in the signal processing device according to claim 4 of the present invention, the control means further has a configuration in which all setting items capable of setting and changing setting values are collectively displayed on the main display screen.

  With this configuration, the signal processing device according to claim 4 of the present invention can easily set and change the setting values for all the setting items.

  Further, in the signal processing device according to claim 5 of the present invention, the control means functions as a function on the sub-display screen for the hierarchy where the setting item to be displayed on the main display screen does not exist as the hierarchy information. It further has a configuration in which the display of the keys is not displayed.

  With this configuration, the signal processing device according to claim 5 of the present invention can reduce the number of function keys displayed when performing key input operation, and can realize smoother key input operation.

  In the signal processing method according to claim 6 of the present invention, the signal processing means (analysis processing unit 10a) performs predetermined signal processing on the signal under measurement (input signal S) from the object under measurement. Based on the output signal (digital data) from the signal processing means, the display means (display device 30) displays a graph (α) in which the horizontal axis is frequency and the vertical axis is amplitude level (decibel) on the main display screen ( A menu corresponding to each setting item (a plurality of parameters) for various processing items (measurement items) for displaying on the main display unit 31) and performing the predetermined signal processing on the signal under measurement. Displaying a plurality of function keys (function display keys F1 to F8 / Fx keys F1 to F8) individually assigned on the sub display screen (sub display unit 32), and control means The control device 40) controls the signal processing means based on the setting values (parameter values) of the respective setting items, and causes the signal processing results for the signal under measurement to be displayed on the main display screen; , The hierarchical information storage means (hierarchical information storage unit 43) forms the setting items in a hierarchical structure, and manages the hierarchical relationship of the setting items in the hierarchical structure (menu structure). The hierarchical information (hierarchical information management table 43a) is stored, and each of the upper set items having the upper and lower hierarchical relationships based on the hierarchical information by the color information assigning means (color information storage unit 44). Storing color information (display color data management table 44a) for assigning a different color (display color data) to each lower setting item corresponding to And the control means selectively displays setting items on the main display screen on which the setting values can be set and changed by the setting item display control means (parameter display control unit 40a). Based on the hierarchy information, the item name (parameter name) of the setting item of each hierarchy corresponding to each of the setting items selectively displayed on the main display screen is used as the menu on the sub display screen. The setting items selectively displayed on the main display screen according to the color information by the step (S12) of displaying each of the plurality of function keys and color display control means (color display control unit 40b). A menu displayed on each of the plurality of function keys on the sub display screen, corresponding to each of the setting items. A step (S13) to be displayed by the color, which is configured to include a.

  With this configuration, in the signal processing method according to claim 6 of the present invention, the setting items that can be set and changed selectively displayed on the main display screen are sub-displayed corresponding to the setting items. Since the same color as the menu displayed on each function key on the screen is displayed, it is possible to specify the function key to be operated to set and change the desired setting value by color It becomes. Therefore, the signal processing method according to claim 6 of the present invention can always guide the best operation procedure even if the hierarchical structure of the setting items becomes more complicated as the number of setting items increases.

  Therefore, the signal processing method according to claim 6 of the present invention can easily set and change a desired set value by the best operation procedure even when the hierarchical relationship of each set item is not grasped. Become.

  Further, in the signal processing method according to claim 7 of the present invention, the control means is provided on the condition that any one of the plurality of function keys is selected by the menu switching means (parameter display switching unit 40c). The step further includes a step (S16) of switching the display of the plurality of function keys to a menu corresponding to a setting item lower than the displayed menu based on the hierarchical information.

  With this configuration, the signal processing method according to claim 7 of the present invention automatically switches the function key display to a menu corresponding to a setting item lower than the displayed menu, in accordance with the key input operation. Therefore, without using a pointing device such as a touch panel, mouse, or trackball, simply operate the function keys displayed in the same color as the setting items that are selectively displayed on the main display screen in order. This makes it possible to set and change a desired set value.

  Further, in the signal processing method according to claim 8 of the present invention, the setting value of each setting item is stored by the storage unit (RAM 41), and the setting value is set and stored by the operation unit (operation unit 50). A step of performing a change (S17), wherein the control means is provided on the condition that a setting value to be set and changed is input by the updating means (setting / updating unit 40d) via the operating means. The step further includes a step (S18) of updating the set value stored in the storage means.

  With this configuration, the signal processing method according to claim 8 of the present invention sets and sets a desired set value without grasping an operation procedure until reaching a desired set item for setting and changing the set value. It can be easily changed.

  The present invention relates to a signal processing apparatus and a signal processing method capable of efficiently setting and changing desired setting item values without grasping the hierarchical relationship between the setting items, assuming that the hierarchical structure of the setting items is complicated. Can be provided.

It is an external view which shows the structure of the signal analyzer which concerns on embodiment of this invention. It is a figure which shows the display screen of the signal analyzer which concerns on embodiment of this invention. It is a functional block diagram which shows the structure of the signal analyzer which concerns on embodiment of this invention. It is a figure which shows the construction example of the hierarchy information management table in the signal analyzer which concerns on embodiment of this invention. It is a figure which shows the construction example of the display color data management table in the signal analyzer which concerns on embodiment of this invention. It is a flowchart shown in order to demonstrate the flow of the process for the parameter setting in the signal analyzer which concerns on embodiment of this invention. It is a figure which shows the example of a display of a display apparatus at the time of the parameter setting of the signal analyzer which concerns on embodiment of this invention. It is a figure which shows the example of a display of a display apparatus at the time of the parameter setting of the signal analyzer which concerns on embodiment of this invention. It is a figure which shows the example of a display of a display apparatus at the time of the parameter setting of the signal analyzer which concerns on embodiment of this invention. It is a figure which shows the example of a display of the display apparatus at the time of the parameter setting which is the 1st modification of the signal analyzer which concerns on embodiment of this invention. It is a figure which shows the example of a display of the display apparatus at the time of the parameter setting which is the 1st modification of the signal analyzer which concerns on embodiment of this invention. It is a figure which shows the example of a display of the display apparatus at the time of the parameter setting which is the 1st modification of the signal analyzer which concerns on embodiment of this invention. It is a figure which shows the example of a display of the display apparatus at the time of the parameter setting which is the 1st modification of the signal analyzer which concerns on embodiment of this invention. It is a figure which shows the example of a display of the display apparatus at the time of the parameter setting which is the 2nd modification of the signal analyzer which concerns on embodiment of this invention. It is a figure which shows the other example of a display of the display apparatus in the signal analyzer which concerns on embodiment of this invention.

  Hereinafter, embodiments of a signal processing device and a signal processing method of the present invention will be described with reference to the drawings.

  First, the configuration of the signal processing apparatus will be described with reference to FIG. In the present embodiment, a case where the present invention is applied to a signal analyzer 10 such as a spectrum analyzer will be described as an example.

  Here, the spectrum analyzer is used for so-called DUT (Device Under Test) for measuring transmission characteristics of various wireless devices and systems as measured objects such as mobile phones and base stations, and more specifically. Is to analyze the frequency component of the signal under measurement from the device under test, and display the relative value of each frequency component as a graph with the horizontal axis representing the frequency and the vertical axis representing the signal level (amplitude level), A wide range of analysis of the signal under measurement at full span is possible, and high-speed and high-accuracy signal processing is possible.

  As shown in FIG. 1, the signal analyzing apparatus 10 of the present embodiment is provided with a display device 30 as a display unit and an operation unit 50 as an operation unit on the front surface thereof.

  The display device 30 is configured using a flat panel display such as a color liquid crystal display (Liquid Crystal Display) or an EL display (Electroluminescence Display), for example, and includes a main display unit 31 as a main display screen, And a sub display unit 32 as a sub display screen.

  Based on an output signal (digital data) from an analysis processing unit (signal processing means) 10a (described later) (see FIG. 3), the main display unit 31 has, for example, a frequency on the horizontal axis and an amplitude level ( A graph α is displayed. The main display unit 31 displays one or a plurality of parameters (setting items) 62 in which parameter values (setting values) can be set and changed as appropriate along with the results 61 of the measurement (predetermined signal processing). (See FIG. 2).

  A plurality of (for example, F1 to F8) function keys (hereinafter referred to as function display keys or Fx keys) are displayed on the sub display unit 32, and the function display keys F1 to F8 are input as described later. Function menus corresponding to a plurality of parameters for various processing items (measurement items) for performing predetermined signal processing on the signal (signal under measurement) S by the analysis processing unit 10a are individually assigned.

  The function display keys F1 to F8 are for displaying a function menu, and the contents of the displayed menu are dynamically switched according to the operation of the function operation keys 51a to 51h.

  The function display keys F1 to F8 are composed of a plurality of pages, and each page is switched by the display changeover switch 56.

  In the present embodiment, the function display keys F1 to F8 are controlled so that the contents of each menu to be displayed are “different colors” for each of the F1 to F8 keys. For example, the function display key F1 is “brown”, the function display key F2 is “red”, the function display key F3 is “orange”, and the function display key F4 is “yellow” to display the respective menus. Similarly, for example, the function display key F5 is “green”, the function display key F6 is “blue”, the function display key F7 is “purple”, and the function display key F8 is “gray”, and each menu is displayed. To do.

  In the present embodiment, for example, as shown in FIG. 2, the display (menu contents) of the function display keys F1 to F8 is “different” by changing the display pattern of the function display keys F1 to F8 for convenience. Color ".

  In FIG. 1, an operation unit 50 is for operating the signal analyzing apparatus 10 and is operated by a user when the power is turned on or measurement is started. The operation unit 50 is also used when setting and changing parameter values, for example.

  As the operation unit 50, in addition to the function operation keys 51 a to 51 h and the display changeover switch 56, the frequency variable knob 52, the menu switch 53, the numeric keypads “0” to “9”, and a single sweep setting. Various hardware (ware) keys such as a switch 55k and a continuous sweep setting switch 55m are provided.

  The function operation keys 51a to 51h correspond to the function display keys F1 to F8, respectively. That is, when the function operation key 51a is operated, a function corresponding to the content of the menu displayed on the function display key F1 is displayed. When the function operation key 51b is operated, the menu displayed on the function display key F2 is displayed. A function corresponding to the content of each is selected (key input). Similarly, when the function operation key 51c is operated, a function corresponding to the content of the menu displayed on the function display key F3 is displayed on the function display key F4 by operating the function operation key 51d. Each function corresponding to the contents of the menu is selected (key input). Similarly, when the function operation key 51e is operated, a function corresponding to the content of the menu displayed on the function display key F5 is displayed on the function display key F6 by operating the function operation key 51f. Each function corresponding to the contents of the menu is selected (key input). Similarly, when the function operation key 51g is operated, a function corresponding to the content of the menu displayed on the function display key F7 is displayed on the function display key F8 by operating the function operation key 51h. Each function corresponding to the contents of the menu is selected (key input).

  The frequency variable knob 52 is operated when adjusting the frequency. For example, the frequency variable knob 52 is changed to increase the frequency when twisted in the right direction, and is changed so as to decrease the frequency when twisted in the left direction.

  The menu switch 53 is for activating the guide function. For example, when the parameter value is set and changed, the menu switch 53 displays the function on each page as the menu switch 53 is operated. A function menu as a main menu (a parameter name at the top layer of each setting item, which is a setting item name) is displayed on the keys F1 to F8, and a main menu corresponding to each menu displayed on the function display keys F1 to F8. The display of each parameter 62 on the display unit 31 is displayed in the same color as the function display keys F1 to F8. Details of the guide function, that is, operations related to setting of parameter values will be described later.

  The numeric keypad 54 is operated, for example, when setting and changing the parameter value, and the parameter value of the target parameter 62 is set and changed in accordance with the key input operation of the numeric keypad 54.

  The single sweep setting switch 55k is operated, for example, when sweeping only once when the trigger function or the gate function is on, and the continuous sweep setting switch 55m is, for example, the trigger function or the gate function. It is operated when sweeping continuously when on.

  The display changeover switch 56 is operated, for example, when setting and changing parameter values, and the page of the function display keys F1 to F8 is changed in accordance with the key input operation of the display changeover switch 56. .

  In addition, the operation unit 50 has, for example, a frequency setting switch 55a and a span setting as hardware keys for individually displaying a predetermined menu as a function menu on the function display keys F1 to F8. Switch 55b, bandwidth (BW (Band Width)) setting switch 55c, level (Amplitude) setting switch 55d, time / sweep setting switch 55e, trigger / gate (Trigger / Gate) setting A switch 55f, a trace setting switch 55g, a measure setting switch 55h, a marker setting switch 55i, a peak search setting switch 55j, and the like are provided.

  The frequency setting switch 55a is operated when the frequency setting and the preselector auto-tuning are executed. The frequency setting switch 55a includes a first submenu of setting items having “Frequency” as a parameter of the uppermost layer as a main menu. The following lower layer parameters are “Center (center frequency setting)”, “Span (frequency span setting)”, “Start (start frequency setting)”, “Stop (stop frequency setting)”, “Pre -Selector Auto Tune (automatic adjustment of pre-selector not shown), "Offset (On / Off)", "Offset Value", and "Step Size".

  The “Center” is for setting and changing the center frequency of the frequency range to be swept.

  The above “Span” is for setting and changing the frequency span to be swept, and the lower layer parameters that are the second submenu include “Span (frequency domain mode)”, “Full Span” (full span). ”,“ Zero Span (zero span setting) ”,“ Couple Time / Frequency Domain ”, and“ Frequency Band Mode (frequency band mode setting) ”.

  The “Span (frequency domain mode)” is for setting and changing the frequency span to be swept arbitrarily (0 Hz or more).

  The “Full Span” is for setting and changing the frequency span to be swept to the maximum (frequency domain mode).

  The “Zero Span” is for setting and changing the frequency span to be swept to 0 Hz (time domain mode).

  The above “Frequency Band Mode” is for setting and changing the pass lower limit frequency of the preselector to Normal / Spurious.

  The “Start” is for setting and changing the start frequency of the frequency range to be swept.

  The above “Stop” is for setting and changing the stop frequency of the frequency range to be swept.

  The “Pre-Selector Auto Tune” is for setting and changing the tuning frequency of the pre-selector.

  The “Offset (On / Off)” is for setting and changing on / off of the frequency offset function.

  The “Offset Value” is for setting and changing the frequency offset value.

  The “Step Size” is for setting and changing the step size of each frequency in the first submenu “Center”, “Start”, and “Stop”.

  These functions (first and second submenus) are displayed on the function display keys F1 to F8 on the first page when the frequency setting switch 55a is operated by the user, and the function operation keys 51a. It is dynamically switched in units of layers with the operation of ~ 51h.

  The Span setting switch 55b has the same specifications as the case of “Span (frequency span setting)” which is the first submenu displayed on the function display key F2 by the Frequency setting switch 55a, for example. That is, when the Span setting switch 55b is operated, the function display keys F1 to F8 on the first page have the second submenu (“Span”, “Full Span”, “Zero Span”, “Zero Span”, “ “Couple Time / Frequency Domain” and “Frequency Band Mode”) are displayed.

  The BW setting switch 55c is operated when setting the resolution bandwidth (RBW) and the video bandwidth (VBW). The setting item with “BW” as the parameter of the highest layer serving as the main menu is the first item. The lower-level parameters that are submenus 1 include “RBW (Auto / Manual switching)”, “RBW Value (RBW setting)”, “VBW (Auto / Manual switching)”, “VBW Value (VBW) Setting) ”and“ VBW Mode (Video / Power) ”.

  The “RBW (Auto / Manual)” is for setting and changing the RBW automatically (Auto) according to the frequency span or by an arbitrary (Manual) value.

  The “RBW Value” is for setting and changing the RBW with an arbitrary value.

  The “VBW (Auto / Manual)” is used to set and change the VBW automatically (Auto) according to the RBW or by an arbitrary (Manual) value.

  The “VBW Value” is for setting and changing VBW to an arbitrary value smaller than RBW.

  Each of these functions (first submenu) is displayed on the function display keys F1 to F8 on the first page when the user operates the BW setting switch 55c, and the function operation keys 51a to 51h. In accordance with the operation, it is dynamically switched for each layer.

  The Amplitude setting switch 55d is operated when setting the level. As a setting item having “Amplitude” as a parameter of the uppermost layer as the main menu, as a parameter of the lower layer as the first submenu, , “Reference Level (setting of reference level)”, “Attenuator (Auto / Manual)”, “Attenuator (setting of input attenuator 11 to be described later)”, “Pre-Amp (setting of preamp (not shown) on / off)” ”,“ Log Scale Unit (setting of level display unit at log scale) ”,“ Scale (switching between log level display and linear level display) ”,“ Offset (On / Off) ”,“ Offset Value ”,“ Impedance ”.

  The “Reference Level” is for setting and changing the reference level (the upper end of the amplitude scale).

  The “Attenuator” is for manually setting and changing the input attenuator.

  The “Pre-Amp” is for setting and changing the preamplifier on / off, and the level sensitivity can be improved by setting and changing the preamplifier to be on.

  Each of these functions (first submenu) is displayed on the function display keys F1 to F8 on the first page when the Amplitude setting switch 55d is operated by the user, and the function operation keys 51a to 51h. In accordance with the operation, it is dynamically switched for each layer.

  The Time / Sweep setting switch 55e is operated when setting a sweep time and a trace point, and is a first submenu of setting items having “Time / Sweep” as a parameter of the highest layer which is a main menu. The following lower layer parameters are “Sweep Time (Auto / Manual)”, “Sweep Time (set sweep time)”, “Auto Sweep Time Select (Normal / Fast)”, “Trace Points (number of trace points) Settings) ”.

  The “Sweep Time” is for manually setting and changing the sweep time.

  The “Trace Points” is for setting and changing the number of waveform data (number of trace points).

  Each of these functions (first submenu) is displayed on the function display keys F1 to F8 on the first page and the function operation keys 51a to 51a when the user operates the time / sweep setting switch 55e. With the operation of 51h, it is dynamically switched in units of each hierarchy.

  The Trigger / Gate setting switch 55f is operated when setting a trigger and a gate, and a lower level serving as a first submenu of setting items having “Trigger” as a parameter of the highest level serving as a main menu. The parameters of "Trigger Switch (On / Off)", "Trigger Switch (trigger function enabled)", "Trigger Slope (Rise / Fall)", "Trigger Level (Video)", "Trigger Level (Wide IF Video), Gate Sweep (Enable Gate Function), Gate View (On / Off), Gate View Setting, Gate Slope (Rise / Fall), Gate Level (Wide IF Video ) ”.

  The above “Trigger Switch” is for setting the trigger condition that becomes the sweep start point in the trigger sweep, and the lower layer parameters that are the second submenu are “Trigger Source”, “Trigger Delay "etc.

  The “Trigger Source” is used to select a trigger source. For example, a “video trigger” that starts a trigger sweep in synchronization with a rising or falling edge of a waveform, an IF with a wide passband (about 50 MHz). "Wide IF video trigger" that detects a signal and starts sweeping in synchronization with the rising or falling edge of the signal. Synchronized with the rising or falling edge of the signal input to the Trigger Input connector (not shown) One of the “external trigger” for starting the sweep and the “SG marker trigger” for starting the sweep in synchronization with the rise or fall of the marker signal output is selected (third submenu).

  The “Trigger Delay” is for setting and changing the delay time until the start of the sweep.

  The above “Gate Sweep” is used to sweep only the set and changed sweep time, starting from the time when the trigger condition is satisfied and the delay time set and changed in the gate sweep. This is for setting a trigger condition that is used as a reference when determining the start point of the, and the lower layer parameters that are the second submenu are "Gate Source", "Gate Delay", "Gate Length" "and so on.

  The “Gate Source” is for selecting a gate source. For example, an IF signal having a wide pass band (about 50 MHz) is detected, and sweeping is started in synchronization with the rise or fall of the signal. “Wide IF Video Trigger”, “External Trigger” that sweeps for the set and changed sweep time starting from the rising or falling edge of the signal input to the External Input connector (not shown), Marker signal output One (third submenu) of “SG marker trigger” for starting gate sweep in synchronization with rising or falling is selected.

  The “Gate Delay” is for setting and changing the delay time in the gate sweep.

  The “Gate Length” is for setting and changing the sweep time in the gate sweep.

  These functions (first to third submenus) are displayed on the function display keys F1 to F8 on the first page when the user operates the Trigger / Gate setting switch 55f, and function operations are performed. In accordance with the operation of the keys 51a to 51h, it is dynamically switched for each layer.

  The Trace setting switch 55g is operated when setting the trace. The setting item having “Trace” as the top-level parameter as the main menu is the lower-level parameter as the first submenu. , “Active Trace (selection of trace to be set)”.

  The above “Active Trace” is used to select the trace to be set, and the “Trace Type” and “Storage Mode (setting of storage mode type) are set as the lower-level parameters that are the second submenu. ”,“ Storage Count ”,“ Limits ”, and“ Detection (selection of detection mode) ”.

  The above "Storage Mode" is for setting the type of storage mode. As a lower-level parameter that is the third submenu, the "Lin" performs averaging processing on the Linear value in the Log display mode. “Average”, for each sweep, the trace data of each horizontal axis point is compared with the new trace data, and “Max Hold” for displaying the larger one. For each sweep, the trace data for each horizontal axis point and the new trace data are displayed. Compare and display “Min Hold” to display the smaller one, “Average” to perform the averaging process at each horizontal axis point for each sweep, display the result, and “Off” to update the trace data for each sweep is there.

  The above “Detection” is for selecting the detection mode, and for displaying a straight line connecting the maximum value and the minimum value between the sample points as a lower layer parameter which is the third submenu. "Pos & Neg", "Positive" for displaying the maximum value between sample points, "Sample" for displaying the instantaneous value between sample points, "Negative" for displaying the minimum value between sample points "RMS (Root Mean Square)" for displaying the mean square value (effective value) between sample points.

  Each of these functions (first to third submenus) is displayed on the function display keys F1 to F8 on the first page when the user operates the trace setting switch 55g, and the function operation keys 51a. It is dynamically switched in units of layers with the operation of ~ 51h.

  The Measure setting switch 55h is operated when setting and changing the measure function, and the lower hierarchy that is the first submenu of the setting items that have “Measure” as the parameter of the highest hierarchy that is the main menu. Parameters of “ACP (measurement of adjacent channel leakage power)”, “Channel Power (measurement of power in the specified frequency band)”, “OBW (measurement of occupied bandwidth)”, “Burst Average Power (in burst) Measurement of the average power), “Spectrum Emission Mask (spectrum emission mask measurement)”, “Spurious Emission (spurious emission measurement)” and the like.

  The “ACP” is used to measure the adjacent channel leakage power, and the lower layer parameters as the second submenu include “In Band Setup” and “Offset” for performing measurements related to In Band. There are “Offset Setup Mode” for selecting one of the modes Normal / Adv. With different settings, and “Offset Setup (Advanced)” for setting and changing the Offset Channel.

  The lower-level parameters that are the third submenu of “In Band Setup” above are “Carrier Number” for setting and changing the number of carriers, and “In Band Setup” for setting and changing the center frequency of In Band. In Band Center "and" Carrier BW "for setting and changing the carrier bandwidth.

  As a lower-level parameter that is the third submenu of the “Offset Setup Mode”, there is “Ch BW” for setting and changing the bandwidth of the Offset Channel.

  As the lower-level parameter that is the third submenu of “Offset Setup (Advanced)” above, “Edit Offset Number” for selecting the offset number to be edited and the offset frequency of the selected Offset Channel are set. And “Offset” for changing, “Ch BW” for setting and changing the bandwidth of the selected Offset Channel.

  The above “Channel Power” is for measuring the power in the specified frequency band. Further, as a lower layer parameter which is the second submenu, “Channel Center” for setting and changing the channel center frequency is used. "Channel Width" for setting and changing the channel bandwidth.

  The “OBW” is used to measure the occupied bandwidth, and further selects a measurement method (X dB Down mode or N% of Power mode) as a lower-layer parameter serving as a second submenu. There is "Method" for.

  The above "Burst Average Power" is for measuring the average power in the burst, and for setting and changing the ON / OFF of the noise cancellation function as a lower layer parameter which is the second submenu. "Noise Cancel (On / Off)".

  The parameters of the lower layer, which is the second submenu of the “Spectrum Emission Mask” above, are “Reference Setup” for setting and changing the reference carrier, “Offset Setup” for setting and changing the offset, There is “Limit Setup” for setting and changing standard lines.

  As a lower-level parameter that is the third submenu of “Reference Setup” above, set and change the reference power for “Reference Mode” and Reference Mode (Fix) for selecting the reference power calculation method. For example, “Reference Power”, and “Channel BW” for setting and changing the bandwidth when measuring the reference power.

  As a lower-level parameter that is the third submenu of “Offset Setup” above, “Edit Offset Number” for setting and changing the offset to be set, and setting and changing the offset on / off "Offset On / Off"

  As a lower-level parameter that is the third submenu of “Limit Setup”, there is “Fail Logic” for setting and changing the Pass / Fall determination method.

  The parameters of the lower layer, which is the second submenu of “Spurious Emission” above, are “Segment Setup” for setting and changing the sweep section (segment), and “Segment Setup” for setting and changing the standard line “Limit Setup” and “Time Domain Setup” for setting and changing Time Domain measurement.

  As a lower-level parameter that is a third submenu of “Segment Setup”, there is “Correction” for setting and changing a correction table used in a segment.

  As a lower-level parameter that is the fourth submenu of the above “Correction”, there is “Device” for selecting a drive.

  As a lower-level parameter serving as a third submenu of “Limit Setup”, there is “Edit Segment Number” for selecting a segment to be set.

  As a lower-level parameter that is a third submenu of “Time Domain Setup”, there is “Edit Segment Number” for selecting a segment to be set.

  Each of these functions (first to fourth submenus) is displayed on the function display keys F1 to F8 on the first page and the second page when the user operates the Measure setting switch 55h. In accordance with the operation of the function operation keys 51a to 51h, the operation is dynamically switched for each layer.

  The Marker setting switch 55i is operated when setting a marker. The setting item having “Marker” as the parameter of the uppermost layer as the main menu, the lower layer parameter as the first submenu, , “Active Marker” for setting and changing the active marker, “Zone Width” for setting and changing the frequency width of the zone marker, “Marker Result” for setting and changing the display format of the marker value, etc. is there.

  As a parameter of the lower layer that is the second submenu of the above “Zone Width (first submenu)”, there is “Zone Width” for setting and changing the zone marker width of the frequency domain.

  As a lower-level parameter that is a second submenu of the “Marker Result”, there is “Integration” for displaying the total power in the zone band.

  These functions (first and second submenus) are displayed on the function display keys F1 to F8 on the first page by the user operating the Marker setting switch 55i, and the function operation keys 51a. It is dynamically switched in units of layers with the operation of ~ 51h.

  The peak search setting switch 55j is operated when setting the execution and conditions of the peak search. The peak search setting switch 55j is a first submenu of setting items having “Peak Search” as a parameter of the highest hierarchy as the main menu. As the lower layer parameters, there are “Marker Search Function” for opening the Marker Search function menu, “Threshold” for setting and changing the threshold for limiting the level points to be searched, etc. .

  The lower-level parameters that are the second submenu of the above “Marker Search Function” include “Resolution” for setting and changing the search resolution.

  The lower-level parameters that are the second submenu of the above “Threshold” include “Threshold Level” for setting and changing the threshold values of Peak, Next Peak, Min, and Next Min.

  These functions (first and second submenus) are displayed on the function display keys F1 to F8 on the first page when the user operates the Peak Search setting switch 55j, and function operation keys In accordance with the operations 51a to 51h, it is dynamically switched for each layer.

  FIG. 2 shows a display screen of the display device 30 (display example when the menu switch 53 is operated).

  Here, the case where several parameters 62 that can be set and changed with parameter values are displayed on the main display unit 31 together with the measurement result 61. In the sub display section 32, the parameter names of the highest layer corresponding to the parameters 62 for which parameter values can be set and changed are displayed as main menus on the function display keys F1 to F8 on the first page. The case where each of the parameter names is displayed in “different colors” is illustrated.

  That is, when the menu switch 53 of the operation unit 50 is operated, “Frequency”, “Amplitude”, “Common Setting” as main menus are respectively displayed on the function display keys F1 to F8 on the first page in the sub display unit 32. ”,“ Measure ”,“ Marker ”,“ Trigger ”,“ Capture ”,“ Accessory ”are displayed.

  In the present embodiment, “Frequency” of the function display key F1 is displayed in, for example, “brown”. The function display key F2 “Amplitude” is displayed in, for example, “red”. The “Common Setting” of the function display key F3 is displayed in “orange”, for example. The function display key F4 “Measure” is displayed in, for example, “yellow”. The function display key F5 “Marker” is displayed in, for example, “green”. “Trigger” of the function display key F6 is displayed in, for example, “blue”. The function display key F7 “Capture” is displayed in, for example, “purple”. The function display key F8 “Accessory” is displayed in, for example, “gray”.

  Here, “Common Setting” is for setting and changing the reference signal (parameter value of Reference Signal Using Cell ID) as the parameter 62, and “Common Setting” is the parameter of the top layer which is the main menu. The parameter of the lower layer that is the first submenu of the setting item is “Reference Signal”, and the parameter of the lower layer that is the second submenu is “Reference Signal Mode Using Cell ID”. .

  “Accessory” corresponds to other functions, and the setting item having “Accessory” as the parameter of the uppermost layer as the main menu, the parameter of the lower layer as the first submenu, the title character "Title" to set and change the column, "Title (On / Off)" to set and change the title string display on / off, "Erase Warm Up" to clear the warm-up message display “Message”, “Uncal Message (On / Off)” for setting and changing Uncal message display ON / OFF, “Reference Clock” for adjusting internal reference frequency signal (synchronization signal), and preselector There is a “Pre-selector” for setting and changing settings.

  The lower layer parameters of the above-mentioned “Reference Clock (first submenu)” are “Reference Clock”, “Reference Clock” for setting and changing the frequency of the internal reference frequency signal. "Reference Clock Preset" to return "

  The main menus “Span”, “BW”, “Time / Sweep”, “Trace”, and “Peak Search” are displayed on the function display keys F1 to F8 (not shown) on the second page, for example. Is done.

  In the display of the main display unit 31, “Subcarrier” is one carrier constituting OFDM (Orthogonal Frequency Division Multiplexing), “Frequency Error” is a frequency error included in the input signal S, and “Output Power” Is a power measurement value of the input signal S, and “Total EVM (rms)” is a modulation error (root mean square) included in the input signal S, and both are measurement results 61.

  In contrast, “Carrier Freq.” Is the center frequency (set value) of the input signal S, “Modulation” is the modulation method (set value) of the input signal S, and “Channel Bandwidth” is the channel of the input signal S. It is a bandwidth (set value), “Input Level” is the power (set value) of the input signal S, “ATT” is an attenuation amount of the input attenuator 11 of the analysis processing unit 10a described later, and “Reference Signal” Is a signal for synchronization, and “Cell ID” is unique information for each object to be measured, both of which are parameters 62 capable of setting and changing parameter values.

  In the present embodiment, for example, when the menu switch 53 of the operation unit 50 is operated (see FIG. 1), the display (62f) of “Reference Signal Using Cell ID” of the parameter 62 on the main display unit 31 is The contents of the menu of the function display key F3, that is, the same color (“orange”) as “Common Setting” is displayed (see FIG. 7). Thereby, when the user sets and changes the parameter value of “Reference Signal Using Cell ID” of the parameter 62, first, as a procedure of operation, the user operates the function operation key 51c corresponding to the function display key F3. I can understand the good things intuitively.

  Similarly, “Modulation” and “Channel Bandwidth” of the parameter 62 on the main display unit 31 are displayed in the same color (“orange”) as the “Common Setting” of the function display key F3 (see FIG. 7).

  Further, the display of “Carrier Freq.” Of the parameter 62 on the main display unit 31 is displayed in the same color (“brown”) as the “Frequency” of the function display key F1 (see FIG. 7).

  In addition, “Input Level” and “ATT” of the parameter 62 on the main display unit 31 are displayed in the same color (“red”) as the “Amplitude” of the function display key F2 (see FIG. 7).

  Further, “Graph” and “EVM vs Subcarrier” of the parameter 62 on the main display unit 31 are displayed in the same color (“gray”) as the “Accessory” of the function display key F8 (see FIG. 7).

  FIG. 3 shows a configuration example (functional block) of the signal analyzing apparatus 10.

  As shown in FIG. 3, the signal analysis apparatus 10 includes an ATT (input attenuator; attenuator) 11, a local oscillator (LO) 12, a frequency mixer (MIX) 13, and an amplifier 14 as an analysis processing unit 10 a. IF (intermediate frequency) filter 15, IF amplifier 16, detector 17, video filter (Video Band Width; VBW) 18, amplifier 19, ADC (analog / digital converter) 20, sweep unit 21, and , Including a sweeping ADC 22, and further includes a display device 30, a control device (control means) 40, and the like.

  Further, the control device 40 includes a RAM (random access memory) 41, a ROM (read only memory) 42, a hierarchical information storage unit (hierarchical information storage unit) 43, and a color information storage unit (color). (Information allocating means) 44 and the operation unit 50 are connected.

  The ATT 11 is an electron that has an internal resistance and attenuates the input signal S as a high-frequency signal under measurement to an optimum mixer input level that can perform signal processing and does not affect measurement, and does not change impedance. It is a part.

  The local oscillator 12 generates, as a local signal, a sine wave having a frequency that is higher or lower than the frequency value of the original input signal S by the value of the conversion destination frequency. The local signal oscillated from the local oscillator 12 is swept over a predetermined frequency range by the sweep ramp signal output from the sweep unit 21.

  The frequency mixer 13 is a characteristic component of the heterodyne type spectrum analyzer, and mixes the input signal S attenuated by the ATT 11 and the local signal oscillated from the local oscillator 12, and the frequency of the difference between the two signals. An output signal including components is generated. The frequency mixer 13 outputs an intermediate frequency signal that is a frequency signal including an intermediate frequency that changes in synchronization with the sweep operation.

  Therefore, the oscillation frequency of the local oscillator 12 is adjusted in accordance with the frequency to be measured (frequency of the input signal S attenuated by the ATT 11) (to a frequency separated from the frequency to be measured by a predetermined amount). By setting), it is possible to obtain a signal obtained by copying the spectrum in the vicinity of the frequency to be measured to the vicinity of a predetermined fixed frequency (intermediate frequency; IF).

  The amplifier 14 amplifies the intermediate frequency signal from the frequency mixer 13 and outputs the amplified signal to the IF filter 15.

  In the case of the present embodiment, the IF filter 15 is configured by an RBW (Resolution Band Width) filter and a logarithmic amplifier (log amplifier) configured by an analog bandpass filter or the like.

  Since the signal component corresponding to the spectrum in the vicinity of the frequency to be measured appears in the output from the frequency mixer 13 with the intermediate frequency as the center, the IF filter 15 is a band having a fixed center frequency like the RBW filter. By passing the filter, a signal component in a predetermined measurement frequency range near the frequency can be extracted.

  The measurement frequency range is determined by the center frequency of the IF filter 15 and the frequency range of the local signal oscillated from the local oscillator 12.

  The IF filter 15 is an intermediate frequency signal amplified by the amplifier 14 when the intermediate frequency signal obtained by mixing the input signal S and the local signal by the frequency mixer 13 is within a predetermined range of the center frequency of the IF filter 15. Is output.

  The logarithmic amplifier (log amplifier) is an amplifier that outputs an amplified signal corresponding to the logarithm of the input signal S. According to the IF filter 15 including this amplifier, the input signal S is logarithmically compressed as a signal with a large dynamic range. It is possible to handle all at once, and display corresponding to decibels can be performed using a linear display device.

  In the present embodiment, since the intermediate frequency signal output from the frequency mixer 13 changes in synchronization with the sweep operation, the IF filter 15 has an intermediate frequency as time elapses within one sweep time (sweep period). A signal that is a time-series waveform in each frequency component of the input signal S converted into a signal is extracted.

  The IF amplifier 16 controls the amplitude level of the signal output from the IF filter 15 in accordance with the set gain. By changing the gain, the IF amplifier 16 is graphed in the main display portion 31a of the display device 30. The amplitude level of the displayed signal (frequency spectrum waveform) can be changed.

  The detector 17 is a component that converts a signal that has been extracted by the IF filter 15 and whose amplitude level has been changed by the IF amplifier 16 into direct current. In the spectrum analyzer, envelope detection is mainly used. The detector 17 detects the peak value of each time axis position in the analog frequency spectrum waveform output from the IF amplifier 16, and obtains the final frequency spectrum waveform in the state of envelope detection.

  That is, the signal detected in the sweep period indicates the magnitude of the time series waveform at the swept frequency. Accordingly, in the main display unit 31, if the horizontal axis is the frequency and the vertical axis is the amplitude level (decibel), the displayed graph α is a frequency spectrum waveform.

  The video filter 18 is a video bandwidth (VBW) filter and functions not as a signal spectrum of the signal detected by the detector 17, that is, as a filter against a time variation of the detected signal. Then, the intensity for each frequency of the input signal S is obtained, and a video signal for displaying the frequency spectrum waveform is output.

  The amplifier 19 amplifies the video signal input from the video filter 18 and then outputs it to the ADC 20.

  The ADC 20 converts the video signal amplified by the amplifier 19 into digital data (output signal), and outputs the digital signal to the control device 40 for controlling the graph display of the frequency spectrum waveform on the display device 30, for example.

  The sweep unit 21 generates a sweep ramp signal for sweeping a local signal oscillated from the local oscillator 12 over a predetermined frequency range, and controls the generation of the sweep ramp signal according to a set sweep time. Is.

  The sweeping ADC 22 converts the sweep ramp signal generated in the sweep unit 21 into digital data and outputs it to the control device 40.

  Accordingly, the control device 40 controls the sweep period for generating the sweep ramp signal in the sweep unit 21 with the digital data from the sweep ADC 22 as a reference.

  The display device 30 includes, for example, a main display unit 31 that displays a video signal from the control device 40, and a sub display unit 32 that displays function display keys F1 to F8.

  When at least the sub display unit 32 is configured by a touch panel, the function operation keys 51a to 51h of the operation unit 50 can be omitted.

  In the display device 30, the video signal from the control device 40 is input to the main display unit 31, whereby the intensity on the frequency axis of the input signal S is expressed in the frequency domain (the horizontal axis is frequency and the vertical axis is amplitude level). The graph α of the frequency spectrum waveform is displayed. The main display unit 31 displays a parameter 62 that allows parameter values to be set and changed together with the measurement result 61.

  On the other hand, the function display keys F1 to F8 (first page) of the sub display unit 32 are provided as main menus on the condition that the menu switch 53 of the operation unit 50 is operated, for example, as shown in FIG. , “Frequency”, “Amplitude”, “Common Setting”, “Measure”, “Marker”, “Trigger”, “Capture”, and “Accessory” are respectively displayed.

  The RAM 41 is used as a work area for the control operation of the control device 40 or is temporarily used as a storage means, for example. The RAM 41 stores parameters that can be set and changed, and saves the parameter values of each parameter. The RAM 41 is saved on condition that the parameter values to be set and changed are input. The parameter value is updated.

  The ROM 42 stores a program for performing predetermined signal processing on the input signal S, and stores various processing software (applications) whose activation is controlled in accordance with the execution of the program.

  The hierarchy information storage unit 43 stores a hierarchy information management table 43a (see FIG. 4) as hierarchy information described later. The hierarchical information management table 43a stores a menu configuration (hierarchical structure) of one or a plurality of parameters for various processing items when predetermined signal processing is performed on the input signal S. This is for managing the upper and lower hierarchical relationships of parameters.

  That is, the hierarchical information management table 43a is configured to display the function values displayed on the main display unit 31 for each parameter 62 that can be set and changed, and the function display keys F1 to F8 to be operated next. Are associated with each main menu, for example.

  The color information storage unit 44 stores a display color data management table 44a (see FIG. 5) as color information described later. The display color data management table 44a is for controlling the color (display color data) when displaying the menu on the function display keys F1 to F8 on the condition that the menu switch 53 of the operation unit 50 is operated. It is.

  That is, the display color data management table 44a is based on the hierarchy information managed by the hierarchy information management table 43a, and each parameter of the lower hierarchy corresponding to each parameter of the upper hierarchy having an upper and lower hierarchy relationship. On the other hand, the color used when displaying the contents of the menu on the function display keys F1 to F8 is defined so that different display color data are assigned to each other.

  Based on the display color data defined in the display color data management table 44a, the display of each parameter 62 on the main display unit 31 is displayed in the same color as the contents of the menu on the corresponding function display keys F1 to F8. It is controlled so that

  In the present embodiment, the program stored in the ROM 42 is the contents of a series of processes shown in the flowchart of FIG. 6 executed by various functional blocks (40a to 40c) in the control device 40, as will be described later. Is consistent with.

  Next, the hierarchical information management table 43a managed in the hierarchical information storage unit 43 will be described with reference to FIG. Here, for the sake of convenience, only the hierarchical structure (menu structure) related to the function display keys F1 to F8 on the first page will be exemplified and the outline thereof will be described.

  However, this is an example in which the number of layers per main menu is 3 (first to third submenus).

  As shown in FIG. 4A, the table 43A in the uppermost layer corresponding to the main menu has menu names and main menu names corresponding to the function display keys F1 (F1 key) to F8 (F8 key). , Pointers P1, P2, P3, P4 of lower level tables 43B-1a, 43B-1b, 43B-1c, 43B-1d,..., Which are first submenus having a hierarchical relationship with the main menu. Are stored.

  As shown in FIG. 4 (b), in the lower layer tables 43B-1a corresponding to the first submenu, the menu names of the first submenu are associated with the function display keys F1 to F8. And pointers P1-1 of the lower layer tables 43C-1a, 43C-1b, 43C-1c, 43C-1d,..., Which are second submenus having a hierarchical relationship with the first submenu. P1-2, P1-3, P1-4, and so on are stored.

  Although not shown, the same applies to the other tables 43B-1b, 43B-1c, 43B-1d,. For example, in the table 43B-1b, the pointers P2-1, P2-2, P2-3 and P2- of the lower layer table (not shown) are associated with the function display keys F1 to F8. 4,... In the table 43B-1c, corresponding to the function display keys F1 to F8, pointers P3-1 and P3-2 of a lower layer table (not shown). , P3-3, P3-4,..., P3-3, P3-4,... In the table 43B-1d, corresponding to the function display keys F1 to F8, each of the lower layer tables (not shown). Pointers P4-1, P4-2, P4-3, P4-4,... Are stored.

  As shown in FIG. 4C, the lower layer tables 43C-1a, 43C-1b, 43C-1c, 43C-1d,... Corresponding to the second submenu have their function display keys F1. Corresponding to .about.F8, each pointer P1- of the menu name of the second submenu and the lower hierarchy table (not shown) which is the third submenu having a hierarchical relationship with the second submenu. 1-1, P1-2-1, P1-3-1, P1-4-1,... Are stored.

  As described above, the same function is used for the other function display keys F1 to F8 in each layer.

  That is, in each hierarchy, all parameters are hierarchically structured so that one of the menus below the menu displayed on the function display keys F1 to F8 is uniquely determined. By selectively operating any one of F1 to F8, it is possible to reliably reach the desired parameter 62.

  Next, the display color data management table 44a managed in the color information storage unit 44 will be described with reference to FIG. Here, based on the hierarchy information managed in the hierarchy information management table 43a shown in FIG. 4, the relationship between the hierarchy of each parameter and the display color data (example of allocation of display color data for each hierarchy) is shown. ing.

  As shown in FIG. 5, in the present embodiment, for example, the function display keys F1 to F8 are displayed in “different colors” for the function display keys F1 to F8. Display key F1 is "brown", function display key F2 is "red", function display key F3 is "orange", function display key F4 is "yellow", and function display key F5 is " "Green" is assigned to the function display key F6, "Blue", the function display key F7 to "Purple", and the function display key F8 to "Gray".

  Thus, for example, when the function operation key 51a is operated in a state where the main menu (the parameter name of the highest hierarchy) is displayed on the function display keys F1 to F8, the function display key F1 is based on the hierarchy information management table 43a. The display of .about.F8 is switched to each parameter of the lower layer, which is the first submenu (P1) corresponding to the menu of the function display key F1, and color display based on the display color data management table 44a is performed.

  Similarly, the display of the function display keys F1 to F8 is, for example, displayed on each parameter of the lower layer that is the first submenu (P2) corresponding to the menu of the function display key F2 when the function operation key 51b is operated. For example, when the function operation key 51c is operated, for example, when the function operation key 51d is operated on each lower-level parameter which is the first submenu (P3) corresponding to the menu of the function display key F3. .., Which are the first submenu (P4) corresponding to the menu of the function display key F4,... Are switched to perform color display based on the display color data management table 44a.

  For example, the function operation key 51a is operated in a state in which the lower level parameters that are the first submenu (P1) corresponding to the menu of the function display key F1 are displayed on the function display keys F1 to F8. Then, based on the hierarchy information management table 43a, the display of the function display keys F1 to F8 is switched to each parameter of the lower hierarchy that is the second submenu (P1-1) corresponding to the menu of the function display key F1, Color display based on the display color data management table 44a is performed.

  Similarly, the display of the function display keys F1 to F8, for example, when the function operation key 51b is operated, each of the lower layers that are the second submenu (P1-2) corresponding to the menu of the function display key F2. When the function is switched to the parameter and the function operation key 51c is operated, the parameter is switched to each parameter of the lower layer, which is the second submenu (P1-3) corresponding to the menu of the function display key F3. When the key 51d is operated, it switches to each parameter of the lower layer which is the second submenu (P1-4) corresponding to the menu of the function display key F4, and the other function operation keys are operated in this way. In the same manner, the display color data management table 44a Zui color display is performed.

  That is, in each submenu, the relationship between the function display keys and the color display of the menu contents is as follows.

  The contents of the menu corresponding to the function display key F1 are displayed in “brown”. The contents of the menu corresponding to the function display key F2 are displayed in “red”. The contents of the menu corresponding to the function display key F3 are displayed in “orange”. The contents of the menu corresponding to the function display key F4 are displayed in “yellow”. The contents of the menu corresponding to the function display key F5 are displayed in “green”. The contents of the menu corresponding to the function display key F6 are displayed in “blue”. The contents of the menu corresponding to the function display key F7 are displayed in “purple”. The contents of the menu corresponding to the function display key F8 are displayed in “gray”.

  Next, a description will be given of the control device 40 including various functional blocks that enables parameter setting.

  In FIG. 3, the control device 40 is constituted by a CPU (Central Processing Unit) or a microprocessor.

  The control device 40 reads out the program stored in the ROM 42 and the contents of the RAM 41, thereby appropriately performing a predetermined operation and setting parameters, a parameter display control unit (setting item display control means) 40a. , A color display control unit (color display control unit) 40b, a parameter display switching unit (menu switching unit) 40c, and a setting / updating unit (updating unit) 40d.

  When setting parameters, the control device 40 first operates the parameter display control unit 40a on the condition that the menu switch 53 of the operation unit 50 is operated. This operation corresponds to steps S11 and S12 of the operation flow of the control device 40 shown in FIG.

  As shown in FIG. 2, the parameter display control unit 40 a selectively displays the parameters 62 that can be set and changed on the main display unit 31, and displays the main display on the function display keys F <b> 1 to F <b> 8 of the sub display unit 32. The top-level parameters that are menus are displayed. The parameter display control unit 40a also controls the display with the function display keys F1 to F8 to be “different colors”.

  That is, the control device 40 determines that the menu switch 53 of the operation unit 50 has been operated in a state where data for displaying the graph α of the frequency spectrum waveform from the analysis processing unit 10a is output to the main display unit 31. Then, the parameter display control unit 40a is operated, and the parameter can be set.

  When the parameters can be set, the control device 40 operates the color display control unit 40b instead of the parameter display control unit 40a, and each of the parameters 62 displayed on the main display unit 31 is changed to each parameter 62. Are controlled so as to have the same color (hereinafter, the same color) as the display of the function display keys F1 to F8 of the sub display unit 32. The operation of the color display control unit 40b corresponds to step S13 in the operation flow of the control device 40 shown in FIG.

  The control device 40 operates the parameter display switching unit 40c instead of the color display control unit 40b on the condition that any one of the function operation keys 51a to 51h corresponding to the function display keys F1 to F8 is operated, The menu display with the function display keys F1 to F8 is switched to the first submenu in the lower hierarchy of the main menu corresponding to the function operation keys 51a to 51h operated from the main menu. The operation of the parameter display switching unit 40c corresponds to steps S14 to S16 in the operation flow of the control device 40 shown in FIG.

  When the parameter display switching unit 40c displays the submenu of the lowest layer on the function display keys F1 to F8, the control device 40 is provided on the condition that the parameter value to be set and changed is input from the operation unit 50. The setting / update unit 40d is operated instead of the parameter display switching unit 40c.

  The setting / updating unit 40d is configured to update the parameter value of the corresponding parameter 62 in the RAM 41 based on the setting input from the operation unit 50 and the parameter value to be changed. The operation of the setting / updating unit 40d corresponds to steps S17 and S18 of the operation flow of the control device 40 shown in FIG.

  Below, the operation | movement at the time of the parameter setting of the control apparatus 40 is demonstrated centering on the flowchart shown in FIG. Here, a case where the parameter value of “Reference Signal Using Cell ID” is set and changed will be described as an example.

  As shown in FIG. 6, when the menu switch 53 of the operation unit 50 is operated in a state where the signal analysis device 10 performs predetermined signal processing, the control device 40 enables the ROM 42 by enabling the guide function. Is loaded with four functional blocks, a parameter display control unit 40a, a color display control unit 40b, a parameter display switching unit 40c, and a setting / updating unit 40d. First, the parameter display control unit 40a is operated. (Step S11).

  The parameter display control unit 40a reads the parameters 62 that can be set and changed from the RAM 41, and displays them on the main display unit 31 as shown in FIG. 2 (step S12). In addition, the parameter display control unit 40a assigns the parameters of the highest hierarchy to the function menu keys F1 to F8 of the sub display unit 32 based on the hierarchy information management table 43a managed by the hierarchy information storage unit 43, respectively. Display as.

  At this time, the parameter display control unit 40a determines that the menu “Frequency” of the F1 key is “brown” and the menu “Amplitude” of the F2 key is based on the display color data management table 44a managed by the color information storage unit 44. Is "red", F3 key menu "Common Setting" is "orange", F4 key menu "Measure" is "yellow", F5 key menu "Marker" is "green", F6 key menu Control is performed so that “Trigger” is displayed in “blue”, F7 key menu “Capture” is displayed in “purple”, and F8 key menu “Accessory” is displayed in “gray”.

  Next, the control device 40 operates the color display control unit 40b (step S13). Based on the display color data management table 44 a managed by the color information storage unit 44, the color display control unit 40 b displays sub-displays in which each of the parameters 62 displayed on the main display unit 31 corresponds to each parameter 62. It controls so that it may become the same color as the display of the function display keys F1-F8 of the part 32.

  As shown in FIG. 7, in the present embodiment, among the parameters 62 in the main display section 31, the parameter 62a “Carrier Freq.” Is displayed in “brown” in the same color as the F1 key “Frequency”. . Further, “Input Level” of the parameter 62b and “ATT” of the parameter 62c are displayed in “red” in the same color as “Amplitude” of the F2 key. Further, “Graph” of the parameter 62d and “EVM vs Subcarrier” of the parameter 62e are displayed in “gray” in the same color as “Accessory” of the F8 key.

  Also, “Reference Signal Using Cell ID” of parameter 62f, “Modulation” of parameter 62g, and “Channel Bandwidth” of parameter 62h are displayed in “orange” in the same color as “Common Setting” of F3 key. Therefore, when setting and changing the parameter value of “Reference Signal Using Cell ID” of the parameter 62f, the user should first operate the function operation key 51c corresponding to the function display key F3 as an operation procedure. I can understand it intuitively.

  When the function operation key 51c corresponding to the F3 key is operated by the user (YES in step S14), the control device 40, based on the top layer table 43A of the layer information management table 43a, has a hierarchical relationship It is determined whether or not there is a submenu (first submenu) (step S15).

  If it is determined that there is the first submenu (YES in step S15), the control device 40 operates the parameter display switching unit 40c (step S16). The parameter display switching unit 40c displays the parameters with the function display keys F1 to F8 on the main menu “Common Setting” corresponding to the operated function operation key 51c based on the table 43A at the top layer of the layer information management table 43a. To the first submenu (P3) in the lower hierarchy.

  As shown in FIG. 8, in the present embodiment, “Channel Bandwidth 5 MHz” which is a first submenu as a lower hierarchy corresponding to the main menu “Common Setting” based on the lower hierarchy table 43B-1c. Is displayed on the F1 key, “Test Model Off” is displayed on the F2 key, “Synchronization Mode SS” is displayed on the F3 key, and “Reference Signal” is displayed on the F4 key.

  When there is no menu corresponding to the parameter 62 displayed on the main display unit 31 in the first submenu, the function display keys F5 to F8 having no menu are set to the non-display state in the sub display unit 32. To do. By doing so, it is possible to reduce the number of function display keys used for the key input operation, thereby realizing a smoother key input operation.

  Thereafter, the control device 40 repeats Steps S13 to S, that is, the color display control unit 40b is operated again, and “Channel Bandwidth 5 MHz” of the F1 key is set to “brown” based on the display color data management table 44a. The “Test Model Off” of the F2 key is displayed in “red”, the “Synchronization Mode SS” of the F3 key is displayed in “orange”, and the “Reference Signal” of the F4 key is displayed in “yellow”.

  Also, the color display control unit 40b, based on the display color data management table 44a, sets “Reference Signal Using Cell ID” of the parameter 62f to “yellow” of the same color as the “Reference Signal” of the F4 key and “Modulation” of the parameter 62g. Is displayed in “red” in the same color as “Test Model Off” of the F2 key, and “Channel Bandwidth” in the parameter 62h is displayed in “brown” in the same color as “Channel Bandwidth 5 MHz” of the F1 key.

  Even in this situation, the function display key F4 to be operated next is specified as one by the same color as “Reference Signal Using Cell ID” of the parameter 62f whose parameter value is to be set and changed. Even if the user does not know the operation procedure at the time of parameter setting, the operation can be performed without hesitation.

  Similarly to the above, when the function operation key 51d corresponding to the F4 key is operated by the user (YES in Step S14), the control device 40 is based on the lower layer table 43B-1c of the layer information management table 43a. Then, it is determined whether or not there is a lower-level submenu (second submenu) having a hierarchical relationship (step S15).

  If it is determined that there is the second submenu (YES in step S15), the control device 40 operates the parameter display switching unit 40c again (step S16). The parameter display switching unit 40c displays the parameters on the function display keys F1 to F8 on the basis of the lower layer table 43B-1c of the hierarchy information management table 43a. Switch to the second submenu (P3-4) in the lower hierarchy of “Reference Signal”.

  As shown in FIG. 9, in the present embodiment, the second submenu as a lower hierarchy corresponding to the first submenu “Reference Signal” is based on a lower hierarchy table (not shown). “Reference Signal Mode Using Cell ID” is F1 key, “Reference Signal Load” is F2 key, “Frequency Shift 0” is F3 key, “Cell ID 0” is F4 key, “Power Boosting 0.000 dB” is “Number of Antenna Ports 1 2 4” is displayed on the F6 key, and “Antenna Ports 0” is displayed on the F7 key. The function display key F8 is not displayed.

  Thereafter, in step S13, the control device 40 operates the color display control unit 40b to set the “Reference Signal Mode Using Cell ID” of the F1 key to “brown” and the F2 key based on the display color data management table 44a. “Reference Signal Load” of “Red”, “Frequency Shift 0” of F3 key is “Orange”, “Cell ID” of F4 key is “Yellow”, and “Power Boosting 0.000 dB” of F5 key In “green”, “Number of Antenna Ports 1 2 4” of F6 key is displayed in “blue” and “Antenna Ports 0” of F7 key is displayed in “purple”.

  Further, the color display control unit 40b displays “Reference Signal Using Cell ID” of the parameter 62f in “brown” of the same color as “Reference Signal Mode Using Cell ID” of the F1 key based on the display color data management table 44a. Let

  Control device 40 repeats steps S13 to S16 until it is determined in step S15 that there is no lower-level submenu that has a hierarchical relationship.

  When determining that there are no more submenus (NO in step S15), the control device 40 operates the setting / updating unit 40d on condition that a parameter value to be set and changed is input from the operation unit 50. .

  The setting / updating unit 40d updates the parameter value of the corresponding parameter 62f in the RAM 41 based on the setting input from the operation unit 50 and the parameter value to be changed (steps S17 and S18).

  In this way, when the parameter value of the parameter 62f is updated, a series of processes related to the setting and changing of the parameter value of “Reference Signal Using Cell ID” is ended.

  As described above, in the signal analyzing apparatus 10 according to the present embodiment, each parameter 62 that can be set and changed in the parameter value that is selectively displayed on the main display unit 31 is displayed in a plurality of function displays on the sub display unit 32. Since the menus displayed on the keys F1 to F8 are displayed in the same color, the function display keys F1 to F8 to be operated to set and change desired parameter values are determined in advance. It can be specified by “different colors”.

  That is, by enabling the guide function, the control device 40 of the signal analysis device 10 can set and change parameter values in the main display unit 31 based on the hierarchical information management table 43a by the parameter display control unit 40a. Each parameter 62 is displayed, and a menu corresponding to each parameter 62 is displayed on each of the function display keys F1 to F8 of the sub display unit 32. Further, the color display control unit 40b of the control device 40 determines the display color of each parameter 62 of the main display unit 31 and the menu display color of the function display keys F1 to F8 based on the display color data management table 44a. Control is performed in a one-to-one correspondence.

  Thereby, even if the hierarchical structure of the parameters becomes more complicated as the number of parameters increases, the function display keys F1 to F8 to be operated by the user to set and change the parameter value of the desired parameter 62 are clarified. It becomes possible to.

  Therefore, even if the user does not know the hierarchical relationship of each parameter, when setting and changing the desired parameter value, the parameter value can be set by the shortest procedure without using a special pointing device. This makes it possible to always guide the best operating procedure.

  In the above-described embodiment, the case where the function display keys are eight F1 to F8 has been described. However, the present invention is not limited to this.

  The display color data assigned to the function display keys F1 to F8 is also an example, and can be arbitrarily determined, and the display color data assignment to the function display keys F1 to F8 may be changed.

  The hierarchical information management table 43a and the display color data management table 44a can be configured to store both or one of them in the ROM 42.

  Of course, the present invention is not limited to setting and changing the parameter value of “Reference Signal Using Cell ID” 62f.

  The parameter 62 and the function display keys F1 to F8 can be used for various applications such as controlling the color of a predetermined character displayed or controlling the color of a predetermined range (area) including the character. It is.

  Moreover, although the case where the colors of the function display keys F1 to F8 of the sub display unit 32 are made different has been described, the present invention is not limited to this. For example, instead of the function display keys F1 to F8, the function operation keys 51a to 51a of the operation unit 50 are used. The 51h color may be displayed differently.

  Further, the function display keys F1 to F8 may be made different in color, and the function operation keys 51a to 51h may be displayed in the same color as the function display keys F1 to F8.

(First modification)
Further, as another example (first modification) of the present embodiment, for example, it is possible to set and change a desired parameter 62 in a state in which a large number of parameters 62 are displayed as a list.

  As shown in FIG. 10, in the case of this modification, as the guide function is validated, the main display unit 31 displays, for example, “Frequency 1.000 000 MHz (Offset Off)” 62i, “Input Level-10 dBm (Offset Off) "62j," Bandwidth 20 MHz "62k," Modulation E-TM3.1 "62k," Reference Signal Using Cell ID "62k," Parameter ****** "62k," Average On (10 ) ”62m,“ Trace Mode EVM vs Subcarrier Graph ”62m,“ Parameter ***** ”62n, and“ Parameter ***** ”62p are displayed.

  In the figure, “Parameter” does not suggest a specific parameter, and “*” is an arbitrary numerical value.

  On the other hand, the function display keys F1 to F8 of the sub display unit 32 include, for example, “Frequency”, “Amplitude”, “Common Setting”, “Measure”, “Marker”, “Trigger”, and “Capture” as main menus. , “Accessory” is displayed.

  The function display key F1 “Frequency” and the parameter 62 “Frequency 1.000 MHz (Offset Off)” 62i are both displayed in “brown”. The function display key F2 “Amplitude” and the parameter 62 “Input Level −10 dBm (Offset Off)” 62j are both displayed in “red”.

  The function display key F3 “Common Setting” and the parameter 62 “Bandwidth 20 MHz” 62k, “Modulation E-TM3.1” 62k, “Reference Signal Using Cell ID” 62k, and “Parameter ******” 62k are both , "Orange" is displayed. The function display key F4 “Measure” and the parameter 62 “Average On (10)” 62m and “Trace Mode EVM vs Subcarrier Graph” 62m are both displayed in “yellow”.

  The function display key F5 “Marker” is displayed in “brown”. Both “Trigger” of the function display key F6 and “Parameter ***” 62n of the parameter 62 are displayed in “blue”.

  Both “Capture” of the function display key F7 and “Parameter ****” 62p of the parameter 62 are displayed in “purple”. “Accessory” of the function display key F8 is displayed in “gray”.

  In this state, for example, when setting and changing the parameter value of “Average On (10)” 62m, the user operates the function operation key 51d corresponding to the function display key F4.

  As shown in FIG. 11, in the case of this modification, the display of the function display keys F1 to F8 of the sub display unit 32 is, for example, “Modulation Analysis”, “MIMO Summary”, “ACP (FFT)”, “ACP (Swept)”, “Channel Power (FFT)”, “Channel Power (Swept)”, “OBW (FFT)”, and “OBW (Swept)” are respectively switched.

  In association with this switching, “Modulation Analysis”, “Average On (10)” 62q and “Trace Mode EVM vs Subcarrier Graph” 62q of the function display key F1 are both displayed in “brown”.

  The function display key F2 “MIMO Summary” is “red”, the function display key F3 “ACP (FFT)” is “orange”, and the function display key F4 “ACP (Swept)” is “yellow”. The function display key F5 “Channel Power (FFT)” is “green”, the function display key F6 “Channel Power (Swept)” is “blue”, and the function display key F7 “OBW (FFT)” is “ "Purple" is displayed respectively.

  On the other hand, “OBW (Swept)” of the function display key F8, “Frequency 1.000 MHz (Offset Off)” 62r, “Bandwidth 20 MHz” 62r, “Modulation E-TM3.1” 62r, “Input” “Level −10 dBm (Offset Off)” 62r, “Reference Signal Using Cell ID” 62r, and “Parameter *****” 62r are all displayed in “gray”.

  In this state, the user operates the function operation key 51a corresponding to the F1 key.

  As shown in FIG. 12, in the case of this modification, the display of the function display keys F1 to F8 of the sub display unit 32 is, for example, “Analysis Time”, “PDSCH Modulation Scheme AUTO” in accordance with the operation of the function operation key 51a. ”,“ Channel Bandwidth 5 MHz ”,“ − (no display) ”,“ Total EVM & Constellation Composite ”,“ EVM Windows (registered trademark) Length 32 ”,“ Detail Settings ”,“ Optical Measurements On / Off ” Switch.

  In association with this switching, “Optical Measurements On / Off” of the function display key F8 and “Frequency 1.000 000 MHz (Offset Off)” 62 s, “Bandwidth 20 MHz” 62 s, “Modulation E-TM3.1” of the parameter 62. "62s", "Input Level-10 dBm (Offset Off)" 62s, "Reference Signal Using Cell ID" 62s, and "Parameter ***" 62s are all displayed in "gray".

  Thereby, in the parameter 62, the parameter value of “Average On (10)” and the parameter value of “Trace Mode EVM vs Subcarrier Graph” can be set and changed at the same time.

  When a large number of parameters 62 can be displayed collectively on the main display unit 31 as in this modification, parameter values can be set and changed from a larger number of parameters 62 in some cases. A desired parameter 62 can be easily selected from all parameters (all setting items) 62.

  FIG. 13 shows a display example of the function display keys F1 to F8 on the second page (2 of 2). Here, an example is shown in which the function display keys F1 to F8 shown in FIG. 11 are the first page (1 of 2).

  That is, the function display keys F1 to F8 on the first page include “Modulation Analysis”, “MIMO Summary”, “ACP (FFT)”, “ACP (Swept)”, “Channel Power (FFT)”, “Channel Power ( Swept) ”,“ OBW (FFT) ”, and“ OBW (Swept) ”are displayed (see FIG. 11), for example, on the function display keys F1 to F8 on the second page. “Trace” is displayed, and “PDCCH mapping Load” is displayed on the function display key F8.

  In this example, the function display key F1 “Trace”, “Average On (10)” 62q, and “Trace Mode EVM vs Subcarrier Graph” 62q are both displayed in “brown”.

  In addition, “PDCCH mapping Load” of the function display key F8 and “Frequency 1.000 MHz (Offset Off)” 62r, “Bandwidth 20 MHz” 62r, “Modulation E-TM3.1” 62r, “Input Level −10 dBm” of the parameter 62 (Offset Off) ”62r,“ Reference Signal Using Cell ID ”62r, and“ Parameter ***** ”62r are all displayed in“ gray ”.

  By not displaying the function display keys F2 to F7 for which no corresponding parameter exists as in this example, the number of function display keys used for key input operation can be reduced, and the selection operation can be performed. This makes it possible to realize a smoother key input operation.

  As shown in FIG. 12, in the first modified example, the parameter 62 “Average On (10)” and “Trace Mode EVM vs Subcarrier Graph” can be set and changed simultaneously. It is also possible to perform these individually.

(Second modification)
That is, as yet another example of the present embodiment, for example, setting and changing the parameter value of “Average On (10)” and setting and changing of the parameter value of “Trace Mode EVM vs Subcarrier Graph” are individually performed. It can also be possible.

  As shown in FIG. 14, for example, in a state where a large number of parameters 62 are displayed in a list, the function display keys F1 to F8 of the sub display unit 32 include “Trace Mode”, “Constellation Display Range”, “Scale”, “Storage”, “−”, “Subcarrier Number 0”, “Symbol Number 0”, and “EVM vs Subcarrier View” are displayed.

  At that time, “Trace Mode” and “Trace Mode EVM vs Subcarrier Graph” 62v of the function display key F1 are both displayed in “brown”. Also, “Storage” and “Average On (10)” 62w of the function display key F4 are both displayed in “yellow”.

  In addition, the function display key F8 “EVM vs Subcarrier View” and the parameter 62 “Frequency 1.000 MHz (Offset Off)” 62x, “Bandwidth 20 MHz” 62x, “Modulation E-TM3.1” 62x, “Input Level − “10 dBm (Offset Off)” 62x, “Reference Signal Using Cell ID” 62x, and “Parameter ***” 62x are all displayed in “gray”.

  In the present modification, for example, when setting and changing the parameter value of “Average On (10)” 62w, the function operation key 51d corresponding to “Storage” of the function display key F4 is displayed based on the display color. It can be easily understood that the operation should be performed.

  Similarly, for example, when setting and changing the parameter value of “Trace Mode EVM vs Subcarrier Graph” 62v, the function operation key 51a corresponding to “Trace Mode” of the function display key F1 is selected from the display color. It can be easily understood that the operation should be performed.

  Note that the signal analysis apparatus 10 according to the present embodiment is not limited to setting and changing the parameter value of the parameter 62, but can be applied to, for example, selecting a format for displaying the measurement result 61.

  As shown in FIG. 15, when the measurement result 61 is displayed in various formats, it is displayed on the main display unit 31 so that the display format can be selected according to the user's needs. As the possible formats, for example, “Graph Type1” GT1, “Graph Type2” GT2, “Graph Type3” GT3, “Graph Type4” GT4, “Graph Type5” GT5, “Graph Type6” GT6, “Summary Type1” ST1, “Summary Type 2” ST2 is displayed.

  The function display keys F1 to F8 of the sub display unit 32 include, for example, “Graph Type1,” “Graph Type2,” “Graph Type3,” “Graph Type4,” “Graph Type5,” “Graph Type6,” “Summary Type1”. ”And“ Summary Type 2 ”are displayed.

  Then, "Graph Type1," "Graph Type2," "Graph Type3," "Graph Type4," "Graph Type5," "Graph Type6," "Summary Type1," and "Summary Type2" of function display keys F1 to F8 are displayed. For example, “Brown”, “Red”, “Orange”, “Yellow”, “Green”, “Blue”, “Purple”, “Gray” are displayed respectively, and the corresponding “Graph Type1” GT1, “ “Graph Type2” GT2, “Graph Type3” GT3, “Graph Type4” GT4, “Graph Type5” GT5, “Graph Type6” GT6, “Summary Type1” ST1, and “Summary Type2” ST2 are displayed in the same color. Control.

  In this way, in the case of an easy-to-understand display such as a format for displaying the measurement result 61, it is possible to intuitively select the format. It becomes possible to be accurate.

  Further, in the above-described embodiment, the case where the signal processing device according to the present invention is applied to the signal analysis device 10 such as a spectrum analyzer has been described as an example. The same applies to the vessel.

  In particular, even in the case of a device in which the screen display mode and the arrangement order of switches are not regular, it is possible to easily reach a desired parameter.

  In addition, the present invention is not limited to the above-described embodiments, and the technical scope of the claims includes various design changes within the scope not departing from the gist of the invention.

  As described above, the signal processing apparatus and the signal processing method of the present invention can efficiently set and change a desired setting item value without understanding the hierarchical relationship between the setting items, assuming that the hierarchical structure of the setting items is complicated. It has the effect that it can be performed, and is useful for signal analyzers such as spectrum analyzers in general.

10 Signal analysis equipment (signal processing equipment)
10a Analysis processor (ATT 11, local oscillator 12, frequency mixer 13, IF filter 15, IF amplifier 16, detector 17, video filter 18 and other signal processing means)
30 Display device (display means)
31 Main display (main display screen)
32 Sub display section (sub display screen)
40 Control device (control means)
40a Parameter display control unit (setting item display control means)
40b Color display control unit (color display control means)
40c Parameter display switching unit (menu switching means)
40d Setting / updating unit (updating means)
41 RAM (storage means)
42 ROM (storage means)
43 Hierarchical information storage unit (hierarchical information storage means)
43a Hierarchical information management table (hierarchical information)
44 Color information storage unit (color information allocation means)
44a Display color data management table (color information)
50 Operation part (operation means)
51a to 51h Function operation keys 53 Menu switch 61 Measurement result 62 (62a to 62x) Parameter (setting item)
F1 to F8 function display keys (function keys)
S input signal (signal under measurement)
α graph

Claims (8)

Signal processing means (10a) for performing predetermined signal processing on the signal under measurement (S) from the object under measurement;
Based on the output signal from the signal processing means, a graph with the horizontal axis representing frequency and the vertical axis representing amplitude level is displayed on the main display screen (31), and the predetermined signal processing is performed on the signal under measurement. Display means (30) for displaying on the secondary display screen (32) a plurality of function keys (F1 to F8) to which menus corresponding to respective setting items for various processing items are individually assigned.
Signal processing comprising: control means (40) for controlling the signal processing means on the basis of the setting values of the setting items and for displaying the result of signal processing for the signal under measurement on the main display screen. A device,
A hierarchical information storage means (43) for storing the hierarchical information (43a) for making the setting items hierarchically structured and managing the hierarchical relationship of the setting items in the hierarchical structure;
Color information assigning means for storing color information (44a) for assigning different colors to lower setting items corresponding to the upper setting items having upper and lower hierarchical relationships based on the hierarchy information (44) and
The control means includes
Each of the setting items selectively displayed on the main display screen based on the hierarchical information is selectively displayed on the main display screen. Setting item display control means (40a) for displaying the item names of the setting items of the respective layers corresponding to the item names on the plurality of function keys on the sub display screen, respectively,
Each of the setting items selectively displayed on the main display screen according to the color information, and the menus respectively displayed on the plurality of function keys on the sub display screen corresponding to the setting items. And a color display control means (40b) for displaying the same color.   The control means, on the condition that any one of the plurality of function keys is selected, displays the plurality of function keys as setting items lower than the displayed menu based on the hierarchy information. The signal processing device according to claim 1, further comprising menu switching means (40c) for switching to a corresponding menu. Storage means (41) for storing the setting value of each setting item;
Operating means (50) for setting and changing the set value,
The control means includes
The apparatus further includes an updating unit (40d) for updating the setting value stored in the storing unit on condition that a setting value to be set and changed is input via the operation unit. The signal processing apparatus according to claim 1 or 2.   The signal processing apparatus according to claim 1, wherein the control unit collectively displays all setting items on which setting values can be set and changed on the main display screen. .   The control means sets the function key display on the sub display screen to a non-display state for the hierarchy where the setting item to be displayed on the main display screen does not exist as the hierarchy information. Item 5. The signal processing device according to any one of Items 1 to 4. Applying predetermined signal processing to the signal to be measured (S) from the object to be measured by the signal processing means (10a);
Based on the output signal from the signal processing means, the display means (30) displays on the main display screen (31) a graph in which the horizontal axis is frequency and the vertical axis is amplitude level. A plurality of function keys (F1 to F8) to which menus corresponding to respective setting items for various processing items for individually performing the predetermined signal processing are individually displayed on the sub display screen (32). When,
The control means (40) controls the signal processing means based on the setting value of each setting item, and displays the result of signal processing for the signal under measurement on the main display screen. Signal processing method,
The hierarchical information storage means (43) stores the hierarchical information (43a) for making the setting items hierarchically structured and managing the hierarchical relationship of the setting items in the hierarchical structure.
Color information (44) for assigning a different color to each lower setting item corresponding to each upper setting item having an upper and lower hierarchical relationship based on the hierarchy information (44). 44a) is further stored, and
The control means includes
The setting item display control means (40a) selectively displays setting items that can be set and changed on the main display screen, and selects them on the main display screen based on the hierarchy information. Displaying the item names of the setting items of each layer corresponding to each of the setting items displayed on the plurality of function keys on the sub display screen as the menu (S12),
Each of the setting items selectively displayed on the main display screen according to the color information by the color display control means (40b) and the plurality of the setting items on the sub display screen corresponding to the setting items. And a menu (S13) for displaying the menus respectively displayed on the function keys in the same color. The control means includes
On the condition that any one of the plurality of function keys is selected by the menu switching means (40c), the display of the plurality of function keys is based on the hierarchical information and is displayed at a lower level than the displayed menu. The signal processing method according to claim 6, further comprising a step (S16) of switching to a menu corresponding to the setting item. The setting value of each setting item is stored by the storage means (41),
A step (S17) of setting and changing the set value by an operating means (50);
The control means includes
A step (S18) of updating the setting value stored in the storing means on condition that the setting means to be set and changed is input by the updating means (40d) via the operation means; The signal processing method according to claim 6 or 7, further comprising:

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