CN109507504A - A kind of vector network analyzer wave band switching method - Google Patents
A kind of vector network analyzer wave band switching method Download PDFInfo
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- CN109507504A CN109507504A CN201811376161.5A CN201811376161A CN109507504A CN 109507504 A CN109507504 A CN 109507504A CN 201811376161 A CN201811376161 A CN 201811376161A CN 109507504 A CN109507504 A CN 109507504A
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- wave band
- dsp
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- point
- network analyzer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/16—Spectrum analysis; Fourier analysis
- G01R23/173—Wobbulating devices similar to swept panoramic receivers
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- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention proposes a kind of vector network analyzer wave band switching methods, comprising the following steps: scanning informations all in vector network analyzer are sent DSP by step (11), host computer, including from initial frequency to termination frequency；Step (12) after DSP receives scanning information, is scanned since first point, and wave band is switched in DSP scanning process and realized；Step (13) after DSP completes the scanning of all the points, sends interrupt signal to host computer, the data that scanning obtains can be updated after receiving interrupt signal and handle and show by host computer.The present invention is realized by the way that wave band switching to be put into DSP, the function of wave band switching is completed in scanning process of the DSP to each point, scanning information will be sent to the time of DSP by saving each wave band host computer in traditional scheme, reduce the time that frequently display updates, to reduce the wave band switching time of vector network analyzer, the scanning speed of vector network analyzer is improved.
Description
Technical field
The present invention relates to the field of test technology, in particular to a kind of vector network analyzer wave band switching method.
Background technique
As the development and vector network analyzer of measuring technique are in the extensive application of producing line, user is to vector network point
The requirement of analyzer scanning speed is higher and higher.As the generation link of pumping signal, wave band is switched in vector network analyzer
Effect it is most important, it directly determines the generation speed of vector network analyzer signal, therefore the length of its time used is straight
Connect the scanning speed for affecting vector network analyzer complete machine.
Currently, the wave band of vector network analyzer switches the scheme switched using PC control wave band: host computer
It is arranged and completes scanning -> host computer more new data of a wave band after band class information -> DSP receives band class information and handle, show
Show.
Fig. 1 shows the wave band switching method of existing vector network analyzer, host computer during switching wave band,
Each wave band requires information (scan type, wave band number of scan points, scan pattern, the wave band initial frequency, wave band to wave band
Step frequency, wave band terminate frequency, wave band sweep delay, wave band delay sampling etc.) it is configured, host computer during this
It sends all band class informations of wave band in DSP and the scanning of wave band is controlled.DSP receives right after the scanning information of wave band
All the points in wave band are scanned, and obtain the scan data of wave band, and send interrupt signal.Host computer receives interrupt signal
Afterwards, the data that DSP is scanned can be updated to host computer, then data is processed and displayed.Each wave band is according to same
The process of sample is handled, until all wave bands all handle completion.
The wave band switching method of existing vector network analyzer, each wave band require regular hour setting wave before
Segment information, each wave band will display data update later.Due to the timeslice wheel between thread during display
The system of changing planes wastes a large amount of time prevent display thread is in running order from horse back.
Host computer realizes that wave band switching can expend a large amount of call duration time and frequent display time.In vector network analysis
In the case that instrument frequency improves, the wave band needed can be more, and the time of consuming can also increase accordingly, and sweep to vector network analyzer
The influence for retouching speed can be also more and more obvious.
Therefore, the speed for how improving the switching of vector network analyzer wave band, is current urgent problem to be solved.
Summary of the invention
The present invention proposes a kind of vector network analyzer wave band switching method, solves to need greatly before and after prior art medium wave band
The problem of amount time is communicated and is shown.
The technical scheme of the present invention is realized as follows:
A kind of vector network analyzer wave band switching method, comprising the following steps:
Scanning informations all in vector network analyzer are sent DSP by step (11), host computer, including from initial frequency
To termination frequency；
Step (12) after DSP receives scanning information, is scanned since first point, and wave band switches in DSP scanning
It realizes in the process；
Step (13) after DSP completes the scanning of all the points, sends interrupt signal to host computer, host computer receives interruption
The data that scanning obtains can be updated after signal and handle and show.
Optionally, the DSP scanning process the following steps are included:
Step (121), after DSP receives the scanning information of vector network analyzer, since first point, judgement is current
Which wave band point belongs to, and sends fractional frequency division plate for the wave band number of current point and the frequency dividing ratio data being calculated；
Step (122), after fractional frequency division plate receives the wave band number and frequency dividing ratio data, by the frequency dividing ratio number of current point
Frequency signal is generated according to VCO is sent to, and is arranged according to the wave band number of current point and switchs；
Step (123), generates the frequency of current point；
Step (124) judges whether current point is the last one point, if current point is not the last one point, current point
In addition step frequency obtains next point, then handled according to same process, if current point is the last one point,
Terminate.
The beneficial effects of the present invention are:
It is realized by the way that wave band switching to be put into DSP, wave band switching is completed in scanning process of the DSP to each point
Function, scanning information will be sent to the time of DSP by saving each wave band host computer in traditional scheme, reduce frequent display
The time of update improves the scanning of vector network analyzer to reduce the wave band switching time of vector network analyzer
Speed.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the flow diagram of the wave band switching method of existing vector network analyzer；
Fig. 2 is an a kind of optional implementation process diagram of vector network analyzer wave band switching method of the invention；
Fig. 3 is an optional implementation process diagram of DSP scanning process.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
At this stage, with the raising of vector network analyzer measurement frequency, the wave band switching of vector network analyzer is more next
It is more, and existing wave band switching mode can expend a large amount of call duration time and frequent display time, will lead to swear in this way
It is slower to measure Network Analyzer complete machine scanning speed.
The invention proposes a kind of vector network analyzer wave band switching method, realizes that wave band switches using DSP, reduce
The transmission times of band class information before current scheme medium wave band scans, while decreasing frequent data at present and updating and aobvious
Show, the time of vector network analyzer wave band switching is shortened, to improve the scanning speed of vector network analyzer complete machine.
With the raising of vector network analyzer frequency range, wave band quantity is continuously increased, and the effect that the present invention improves scanning speed is brighter
It is aobvious.
Fig. 2 shows an alternative embodiments of vector network analyzer wave band switching method of the invention.
In the alternative embodiment, which comprises step 11, host computer believes scannings all in vector network analyzer
Breath is sent to DSP, including from initial frequency to termination frequency.Step 12, it after DSP receives scanning information, is opened from first point
Beginning is scanned, and wave band is switched in DSP scanning and realized.Step 13, after the scanning of DSP completion all the points, interrupt signal is sent
To host computer, the data that scanning obtains can be updated after receiving interrupt signal and handle and show by host computer.
Fig. 3 shows an alternative embodiment of DSP scanning process.
In the alternative embodiment, the DSP scanning process the following steps are included:
Step 121, after DSP receives the scanning information of vector network analyzer, since first point, judge current point
Which wave band belonged to, sends fractional frequency division plate for the wave band number of current point and the frequency dividing ratio data being calculated.Fractional frequency division
The wave band number that can determine whether different frequency range when conceptual design, frequency range where the frequency by inquiring current point obtain wave band number.With working as
The frequency of preceding point obtains frequency dividing ratio data divided by the phase demodulation frequency of VCO (voltage controlled oscillator).
Step 122, after fractional frequency division plate receives the wave band number and frequency dividing ratio data, by the frequency dividing ratio data of current point
It is sent to VCO (voltage controlled oscillator) and generates frequency signal, and be arranged according to the wave band number of current point and switch, including directly export, divide
Frequently, frequency multiplication, mixing.
Step 123, the frequency of current point is generated.
Step 124, judge whether current point is the last one point, if current point is not the last one point, current point adds
Upper step frequency obtains next point, is then handled according to same process, if current point is the last one point, ties
Beam.
This programme is to realize wave band switching in dsp, and host computer is only responsible for sending the scanning information of complete machine to DSP, and locates
Reason and display scan data.DSP scanning and wave band switching are combined together by this programme, in dsp the scanning process of each point
In complete the function of wave band switching, scanning only transmits a complete machine scanning information every time, and unrelated with the quantity of wave band, reduces
The transmission of band class information before each wave band, while decreasing frequent display relevant to wave band quantity, to improve
The efficiency of wave band switching, finally improves the scanning speed of vector network analyzer.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (2)
1. a kind of vector network analyzer wave band switching method, which comprises the following steps:
Scanning informations all in vector network analyzer are sent DSP by step (11), host computer, including from initial frequency to end
Only frequency；
Step (12) after DSP receives scanning information, is scanned since first point, and wave band switches in DSP scanning process
Middle realization；
Step (13) after DSP completes the scanning of all the points, sends interrupt signal to host computer, host computer receives interrupt signal
The data that scanning obtains can be updated afterwards and handle and show.
2. a kind of vector network analyzer wave band switching method as described in claim 1, which is characterized in that the DSP scanning
Process the following steps are included:
Step (121) after DSP receives the scanning information of vector network analyzer, since first point, judges current point category
In which wave band, fractional frequency division plate is sent by the wave band number of current point and the frequency dividing ratio data being calculated；
Step (122) send the frequency dividing ratio data of current point after fractional frequency division plate receives the wave band number and frequency dividing ratio data
Frequency signal is generated to VCO, and is arranged according to the wave band number of current point and switchs；
Step (123), generates the frequency of current point；
Step (124) judges whether current point is the last one point, if current point is not the last one point, current point is added
Step frequency obtains next point, is then handled according to same process, if current point is the last one point, ties
Beam.
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| CN201811376161.5A CN109507504A (en) | 2018-11-19 | 2018-11-19 | A kind of vector network analyzer wave band switching method |
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| CN201811376161.5A CN109507504A (en) | 2018-11-19 | 2018-11-19 | A kind of vector network analyzer wave band switching method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5021774A (en) * | 1987-01-09 | 1991-06-04 | Hitachi, Ltd. | Method and circuit for scanning capacitive loads |
| CN102522960A (en) * | 2011-12-23 | 2012-06-27 | 中国电子科技集团公司第四十一研究所 | Hardware-controlled automatic intermediate-frequency gain control method for vector network analyzer |
| CN102611393A (en) * | 2011-12-26 | 2012-07-25 | 深圳市虹远通信有限责任公司 | Radio frequency power amplifier system having waveband switching function |
| CN104320087A (en) * | 2014-10-13 | 2015-01-28 | 中国电子科技集团公司第四十一研究所 | High-speed digital frequency scanning method |
| CN104378105A (en) * | 2014-10-08 | 2015-02-25 | 中国电子科技集团公司第四十一研究所 | Method for increasing receiver scanning speed on basis of whole-process phase-locked technique |
-
2018
- 2018-11-19 CN CN201811376161.5A patent/CN109507504A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5021774A (en) * | 1987-01-09 | 1991-06-04 | Hitachi, Ltd. | Method and circuit for scanning capacitive loads |
| CN102522960A (en) * | 2011-12-23 | 2012-06-27 | 中国电子科技集团公司第四十一研究所 | Hardware-controlled automatic intermediate-frequency gain control method for vector network analyzer |
| CN102611393A (en) * | 2011-12-26 | 2012-07-25 | 深圳市虹远通信有限责任公司 | Radio frequency power amplifier system having waveband switching function |
| CN104378105A (en) * | 2014-10-08 | 2015-02-25 | 中国电子科技集团公司第四十一研究所 | Method for increasing receiver scanning speed on basis of whole-process phase-locked technique |
| CN104320087A (en) * | 2014-10-13 | 2015-01-28 | 中国电子科技集团公司第四十一研究所 | High-speed digital frequency scanning method |
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Application publication date: 20190322 |
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