CN108833029A - A kind of 1800M RF consistency transmitting intermodulation testing method and device - Google Patents

A kind of 1800M RF consistency transmitting intermodulation testing method and device Download PDF

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Publication number
CN108833029A
CN108833029A CN201810538904.8A CN201810538904A CN108833029A CN 108833029 A CN108833029 A CN 108833029A CN 201810538904 A CN201810538904 A CN 201810538904A CN 108833029 A CN108833029 A CN 108833029A
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China
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signal
test
measured
box
extension
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CN201810538904.8A
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Chinese (zh)
Inventor
吴赛
王智慧
丁慧霞
汪洋
杨德龙
王映霖
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China Electric Power Research Institute Co Ltd CEPRI
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China Electric Power Research Institute Co Ltd CEPRI
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Priority to CN201810538904.8A priority Critical patent/CN108833029A/en
Publication of CN108833029A publication Critical patent/CN108833029A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/10Monitoring; Testing of transmitters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/10Monitoring; Testing of transmitters
    • H04B17/101Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/02Details
    • H04B3/46Monitoring; Testing

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

The invention discloses a kind of 1800M RF consistencies to emit intermodulation testing method and device, the method includes:Terminal to be measured is attached with RF consistency measuring device and external equipment by RF cable according to preset rules, forms test access;The cell relevant parameter of comprehensive test instrument is configured by preset rules, and initial frequency point and initial bandwidth are set;And test configurations are issued to terminal to be measured by the test access;Signal source sends intermodulation interference signal according to preset rules, and measured terminal is according to test configurations return signal;The signal that the intermodulation interference signal and the measured terminal return is combined to form test signal;The test result under the frequency point and bandwidth is confirmed to the measurement of the test signal by comprehensive test instrument and frequency spectrograph;Frequency point to be measured and bandwidth to be measured are successively modified, the test result under different frequent points and different bandwidth is obtained;The method and device improve efficiency, while also improving the accuracy and reliability of transmitting intermodulation testing.

Description

A kind of 1800M RF consistency transmitting intermodulation testing method and device
Technical field
The present invention relates to fields of communication technology, emit intermodulation testing side more particularly, to a kind of 1800M RF consistency Method and device.
Background technique
Currently, in mobile communication technology field, with the continuous development of technology, the integrated level of communication base station is higher and higher, Frequency range coverage area from GSM, UMTS, LTE to MassiveMIMO constantly extend, the transmission power range of base station also gradually expands Greatly.The antenna for base station number of 5th generation mobile communcations system (Fifth Generation, 5G) is even more to have decades of times than earlier generations Increase.
LTE1800M private network frequency range is different and public network, traditional communication equipment test environment cannot be compatible with, in particular for The transmitting intermodulation testing of RF consistency need to be wider array of in range when testing intermodulation effects of multiple interference signals to terminal It is taken multiple measurements under multiple frequency points and the test environment of multiple bandwidth, carries out building test using traditional sorting device When, need to carry out multiple device connection and setting, building test, structure is complicated;Made between each single measurement by people's manual test Measurement error is larger, human cost is higher;This makes the manual testing built in traditional sorting device emit mutually When commissioning is tried, it is unable to satisfy accuracy and reliability.
Summary of the invention
In order to solve existing for background technique to be emitted in the widened situation of frequency range coverage area using conventional method When intermodulation testing, excessive pendulous frequency makes the problems such as measurement error is larger, human cost is higher, and the present invention provides one kind 1800M RF consistency emits intermodulation testing method and device, the method and device and passes through the test of the high integration of setting Device realizes the automation of transmitting intermodulation testing;A kind of 1800M RF consistency emits intermodulation testing method:
According to preset rules by terminal to be measured and RF consistency measuring device and external equipment by RF cable into Row connection, forms test access;The external equipment includes comprehensive test instrument, signal source and frequency spectrograph;
The cell relevant parameter of comprehensive test instrument is configured by preset rules, and be arranged initial frequency point to be measured and initially to Measuring tape is wide;And test configurations are issued to terminal to be measured by the test access;
Signal source sends intermodulation interference signal according to preset rules, and measured terminal is according to test configurations return signal;It is described The signal that intermodulation interference signal and the measured terminal return is combined to form test signal;
The test result under the frequency point and bandwidth is confirmed to the measurement of the test signal by comprehensive test instrument and frequency spectrograph;
Frequency point to be measured and bandwidth to be measured are successively modified, the test result under different frequent points and different bandwidth is obtained;
Further, described to lead to terminal to be measured and RF consistency measuring device and external equipment according to preset rules RF cable is crossed to be attached, including:The output interface of the comprehensive test instrument and the input interface of the terminal to be measured are through radio frequency one It is directly connected inside cause property measuring device;The output interface of the terminal to be measured is inside RF consistency measuring device by letter Number combining and signal coupling with the input interface of comprehensive test instrument couple conducting;The signal source output interface is surveyed in RF consistency It is connected by signal combining with the output interface of terminal to be measured inside amount device;
Further, described to lead to terminal to be measured and RF consistency measuring device and external equipment according to preset rules RF cable is crossed to be attached, including:The terminal output to be measured is combined inside RF consistency measuring device by signal And signal couples the conducting that is connected with the input terminal of frequency spectrograph;
Further, the RF consistency measuring device includes test box and extension box;The measured terminal returns Signal the signal combining module inside case and the intermodulation interference signal carry out signal combining, output test signal after tested; After the signal coupling module inside test box completes signal coupling, the filter module of expanded case carries out the test signal Filtering processing, is eventually sent to frequency spectrograph and signal source;The extension box is with the test box according to preset rules by penetrating Frequency cable is attached;
Further, it is surveyed using test controller and the comprehensive test instrument, frequency spectrograph, signal source and the RF consistency Amount device is communicatively coupled;The test controller controls the comprehensive test instrument and carries out the configuration of cell relevant parameter, and is arranged Initial frequency point to be measured and initial bandwidth to be measured;The parameter of test controller setting signal source output intermodulation interference signal; The test controller reads the test result of the comprehensive test instrument and frequency spectrograph measurement;The test controller adjustment is to frequency measurement The numerical value of point and bandwidth to be measured.
A kind of 1800M RF consistency emits intermodulation testing device:Test box;
The test box includes digital control circuit and switch unit;
The digital control circuit is made of multiple modular circuit modules, and the multiple circuit module includes signal coupling It molds block and signal is combined module, the signal coupling module is used to carry out signal coupling processing to the signal of input;It is described Signal is combined module and is used to carry out signal combining to the multiple groups signal of input, exports one group of signal;Between the circuit module according to Preset rules carry out connection;
The switch unit includes multiple signal paths, and each of the multiple signal path is used for according to preset rules The module or other signal paths of external equipment and digital control circuit are attached by RF cable;The switch unit For controlling the on-off of each signal path;The external equipment includes comprehensive test instrument, signal source and frequency spectrograph;
Further, described device further includes extension box;
The extension box includes extension control circuit and expanding element;
The extension control circuit is used to handle the signal of the extension control circuit of input, the extension control Circuit processed is made of multiple modular circuit modules, and the multiple circuit module includes filter module;The filter module is used It is filtered in the signal of input;Connection is carried out according to preset rules between the circuit module;
The expanding element includes N number of by expansion interface and M secondary expansion interfaces;It is described N number of to be used by expansion interface It is connected in the signal path with test box, receives the extension signal of test box;Each of the M secondary expansion interfaces are used According to extension signal by external expansion equipment with extend control circuit or other interfaces and be attached by RF cable;
The signal path of the switch unit of the test box includes N number of expansion interface and 1 road control interface;The extension The expanding element of case includes 1 tunnel by control interface;
N number of expansion interface of the test box is connected with the N number of of the extension box by expansion interface, and test box believes extension Number extension box is sent to by expansion interface and by expansion interface;The control interface of the test box and being controlled for extension box Interface is connected, and test box sends control signals to extension box by control interface and by control interface;
Further, described device includes test controller, and the switch unit of the test box includes machine control interface, described The expanding element of extension box includes striking machine control interface, and the test controller is connected by the machine control interface with test box, It is connected by the striking machine control interface with extension box;The test controller be used for according to testing requirement configure test case with And test parameter, and the equipment external with the test box, extension box and test box and extension box is communicated;The control Signal is used for the connection type controlled include between each module of digital control circuit and each signal path of switch unit, and extension Connection type between each module of control circuit and each interface of expanding element;
Further, the test controller is used to control the comprehensive test instrument and carries out the configuration of cell relevant parameter, and sets Set initial frequency point to be measured and initial bandwidth to be measured;The test controller is for setting signal source output intermodulation interference signal Parameter;The test controller is used to read the test result of the comprehensive test instrument and frequency spectrograph measurement;The test controller For adjusting the numerical value of frequency point to be measured and bandwidth to be measured.
Beneficial effects of the present invention are:Technical solution of the present invention gives a kind of 1800M RF consistency transmitting intermodulation Test method and device, the method and device avoid discrete device overlap joint consumption by the test device of setting high integration The manpower taken and working hour;Device and external test equipment are uniformly controlled by using test controller, configuration parameter, it is real Showing gradually being measured in widened frequency range coverage area for automation, this not only greatly improves efficiency, while Frequent operation bring error is avoided, so that the transmitting intermodulation testing result carried out to terminal is accurate, reliable.
Detailed description of the invention
By reference to the following drawings, exemplary embodiments of the present invention can be more fully understood by:
Fig. 1 is that a kind of 1800M RF consistency of the specific embodiment of the invention emits the flow chart of intermodulation testing method; And
Fig. 2 is that a kind of 1800M RF consistency of the specific embodiment of the invention emits the structure chart of intermodulation testing device.
Specific embodiment
Exemplary embodiments of the present invention are introduced referring now to the drawings, however, the present invention can use many different shapes Formula is implemented, and is not limited to the embodiment described herein, and to provide these embodiments be at large and fully disclose The present invention, and the scope of the present invention is sufficiently conveyed to person of ordinary skill in the field.Show for what is be illustrated in the accompanying drawings Term in example property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements use identical attached Icon note.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has person of ordinary skill in the field It is common to understand meaning.Further it will be understood that with the term that usually used dictionary limits, should be understood as and its The context of related fields has consistent meaning, and is not construed as Utopian or too formal meaning.
Fig. 1 is that a kind of 1800M RF consistency of the specific embodiment of the invention emits the flow chart of intermodulation testing method; As shown in Figure 1, a kind of 1800M RF consistency transmitting intermodulation testing method includes:
Step 110, terminal to be measured is passed through according to preset rules with RF consistency measuring device and external equipment and is penetrated Frequency cable is attached, and forms test access;The external equipment includes comprehensive test instrument, signal source and frequency spectrograph;
Described includes connection manually and automation connection in the way of preset rules connection;
The manual connection uses radio frequency i.e. according to the connection type prompted on RF consistency measuring device display interface The interface of phase in requisition for connection is attached by cable, and is tested and whether passed through RF consistency measuring device exact p-value access Connection is normal;
Automation connection be by the test controller control switch unit of the RF consistency measuring device with And in expanding element each connection cables (such as signal path) on-off, make cable in measuring device that situation be connected according to default Carry out transmitting intermodulation testing mode be connected, to complete the conducting of test access;
Further, described to lead to terminal to be measured and RF consistency measuring device and external equipment according to preset rules RF cable is crossed to be attached, including:The output interface of the comprehensive test instrument and the input interface of the terminal to be measured are through radio frequency one It is directly connected inside cause property measuring device;The output interface of the terminal to be measured is inside RF consistency measuring device by letter Number combining and signal coupling with the input interface of comprehensive test instrument couple conducting;The signal source output interface is surveyed in RF consistency It is connected by signal combining with the output interface of terminal to be measured inside amount device;
The terminal output to be measured is inside RF consistency measuring device by signal combining and signal coupling and frequency The input terminal of spectrometer, which is connected, to be connected;
Step 120, the cell relevant parameter of comprehensive test instrument is configured by preset rules, and be arranged initial frequency point to be measured with And initial bandwidth to be measured;And test configurations are issued to terminal to be measured by the test access;
Joined by the test controller of the RF consistency measuring device by cell correlation of the testing requirement to comprehensive test instrument Number configured, and be arranged include initial frequency point, initial bandwidth, frequency point step value, bandwidth step value, frequency point test section and Bandwidth test section;
The measured terminal accesses in the cell of the comprehensive test instrument setting, and receives signal according to test configurations;
Step 130, signal source sends intermodulation interference signal according to preset rules, and measured terminal is returned according to test configurations to be believed Number;The signal that the intermodulation interference signal and the measured terminal return is combined to form test signal;
Further, the RF consistency measuring device includes test box and extension box;The measured terminal returns Signal the signal combining module inside case and the intermodulation interference signal carry out signal combining, output test signal after tested; After the signal coupling module inside test box completes signal coupling, the filter module of expanded case carries out the test signal Filtering processing, is eventually sent to frequency spectrograph and signal source;The extension box is with the test box according to preset rules by penetrating Frequency cable is attached;
Step 140, the measurement of the test signal is confirmed under the frequency point and bandwidth by comprehensive test instrument and frequency spectrograph Test result;
Step 150, frequency point to be measured and bandwidth to be measured are successively modified, the test knot under different frequent points and different bandwidth is obtained Fruit;
The Long-term change trend of the test result can carry out analyzing really from three frequency point, bandwidth and useful signal level dimensions Recognize, can also be confirmed by the comprehensive change of multiple dimensions;
Further, it is surveyed using test controller and the comprehensive test instrument, frequency spectrograph, signal source and the RF consistency Amount device is communicatively coupled;The test controller controls the comprehensive test instrument and carries out the configuration of cell relevant parameter, and is arranged Initial frequency point to be measured and initial bandwidth to be measured;The parameter of test controller setting signal source output intermodulation interference signal; The test controller reads the test result of the comprehensive test instrument and frequency spectrograph measurement;The test controller adjustment is to frequency measurement The numerical value of point and bandwidth to be measured.
Fig. 2 is that a kind of 1800M RF consistency of the specific embodiment of the invention emits the structure chart of intermodulation testing device; As shown, described device includes:
Number test box 210;
Several test boxs 210 include digital control circuit 211 and switch unit 212;
The digital control circuit 211 is made of multiple modular circuit modules, and the multiple circuit module includes letter Number coupling module 2111 and signal are combined module 2112, and the signal coupling module 2111 is for carrying out letter to the signal of input Number coupling processing;The signal combining module 2112 is used to carry out signal combining to the multiple groups signal of input, exports one group of signal; Connection is carried out according to preset rules between the circuit module;
The switch unit 212 includes multiple signal paths, and each of the multiple signal path is used for according to default External equipment is attached with the module of digital control circuit 211 or other signal paths by RF cable by rule;It is described Switch unit 212 is used to control the on-off of each signal path;The external equipment includes comprehensive test instrument, signal source and frequency spectrum Instrument;
Further, described device further includes extension box 220;
The extension box 220 includes extension control circuit 221 and expanding element 222;
The extension control circuit 221 is used to handle the signal of the extension control circuit 221 of input, described Extension control circuit 221 is made of multiple modular circuit modules, and the multiple circuit module includes filter module;The filter Wave module is for being filtered the signal of input;Connection is carried out according to preset rules between the circuit module;
The expanding element 222 includes N number of by expansion interface and M secondary expansion interfaces;It is described N number of by expansion interface For being connected with the signal path of several test boxs 210, the extension signal of number test box 210 is received;The M secondary expansion interfaces Each of for according to extension signal by external expansion equipment and extension control circuit 221 or other interfaces pass through radio frequency line Cable is attached;
The signal path of the switch unit 212 of several test boxs 210 includes N number of expansion interface and 1 road control interface; The expanding element 222 of the extension box 220 includes 1 tunnel by control interface;
N number of expansion interface of several test boxs 210 is connected with the N number of of extension box 220 by expansion interface, number test Case 210 will extend signal and be sent to extension box 220 by expansion interface and by expansion interface;The control of several test boxs 210 Interface processed is connected with extension box 220 by control interface, and number test box 210 will be controlled by control interface and by control interface Signal is sent to extension box 220;
Further, described device includes test controller, and the switch unit 212 of several test boxs 210 includes machine control The expanding element 222 of interface, the extension box 220 includes striking machine control interface, and the test controller is connect by the machine control Mouth is connected with number test box 210, is connected by the striking machine control interface with extension box 220;The test controller is used for root Configure test case and test parameter according to testing requirement, and with several test boxs 210, extension box 220 and number test box 210 and the external equipment of extension box 220 communicated;The control signal includes each mould of digital control circuit 211 for controlling Connection type between block and each signal path of switch unit 212, and the extension each module of control circuit 221 and expanding element Connection type between 222 each interfaces;
Further, the test controller is used to control the comprehensive test instrument and carries out the configuration of cell relevant parameter, and sets Set initial frequency point to be measured and initial bandwidth to be measured;The test controller is for setting signal source output intermodulation interference signal Parameter;The test controller is used to read the test result of the comprehensive test instrument and frequency spectrograph measurement;The test controller For adjusting the numerical value of frequency point to be measured and bandwidth to be measured;
The comprehensive test instrument, frequency spectrograph and the signal source all can be one or more;It, should when comprehensive test instrument is one Comprehensive test instrument undertakes the configuration of cell relevant parameter, receives the tasks such as measurement result;When comprehensive test instrument be it is multiple when, can by above-mentioned task into Task is individually performed in row distribution, each comprehensive test instrument.
In the instructions provided here, numerous specific details are set forth.It is to be appreciated, however, that the implementation of the disclosure Example can be practiced without these specific details.In some instances, well known method, structure is not been shown in detail And technology, so as not to obscure the understanding of this specification.
Those skilled in the art will understand that can be carried out adaptively to the module in the equipment in embodiment Change and they are arranged in one or more devices different from this embodiment.It can be the module or list in embodiment Member or component are combined into a module or unit or component, and furthermore they can be divided into multiple submodule or subelement or Sub-component.Other than such feature and/or at least some of process or unit exclude each other, it can use any Combination is to all features disclosed in this specification (including adjoint claim, abstract and attached drawing) and so disclosed All process or units of what method or apparatus are combined.Unless expressly stated otherwise, this specification is (including adjoint power Benefit require, abstract and attached drawing) disclosed in each feature can carry out generation with an alternative feature that provides the same, equivalent, or similar purpose It replaces.The step of being related in this specification, which numbers, is only used for distinguishing each step, and the time being not limited between each step Or the relationship of logic, restriction unless the context clearly, otherwise the relationship between each step includes the case where various possible.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments In included certain features rather than other feature, but the combination of the feature of different embodiments means to be in the disclosure Within the scope of and form different embodiments.For example, embodiment claimed in detail in the claims is one of any Can in any combination mode come using.
The various component embodiments of the disclosure can be implemented in hardware, or to run on one or more processors Software module realize, or be implemented in a combination thereof.The disclosure is also implemented as executing side as described herein The some or all equipment or system program (for example, computer program and computer program product) of method.It is such It realizes that the program of the disclosure can store on a computer-readable medium, or can have the shape of one or more signal Formula.Such signal can be downloaded from an internet website to obtain, and perhaps be provided on the carrier signal or with any other shape Formula provides.
The disclosure is limited it should be noted that above-described embodiment illustrates rather than the disclosure, and ability Field technique personnel can be designed alternative embodiment without departing from the scope of the appended claims.Word "comprising" is not arranged Except there are element or steps not listed in the claims.Word "a" or "an" located in front of the element does not exclude the presence of more A such element.The disclosure can be by means of including the hardware of several different elements and by means of properly programmed calculating Machine is realized.If several in these systems can be by same in the unit claim for listing dry systems Hardware branch embodies.
The above is only the specific embodiment of the disclosure, it is noted that for the ordinary skill people of this field Member for, do not depart from the disclosure spirit under the premise of, can make several improvements, modify and deform, these improve, modification, It is regarded as falling within the scope of protection of this application with deformation.

Claims (10)

1. a kind of 1800M RF consistency emits intermodulation testing method, the method includes:
Terminal to be measured is connected with RF consistency measuring device and external equipment by RF cable according to preset rules It connects, forms test access;The external equipment includes comprehensive test instrument, signal source and frequency spectrograph;
The cell relevant parameter of comprehensive test instrument is configured by preset rules, and initial frequency point to be measured is set and initially to measuring tape It is wide;And test configurations are issued to terminal to be measured by the test access;
Signal source sends intermodulation interference signal according to preset rules, and measured terminal is according to test configurations return signal;The intermodulation The signal that interference signal and the measured terminal return is combined to form test signal;
The test result under the frequency point and bandwidth is confirmed to the measurement of the test signal by comprehensive test instrument and frequency spectrograph;
Frequency point to be measured and bandwidth to be measured are successively modified, the test result under different frequent points and different bandwidth is obtained.
2. according to the method described in claim 1, it is characterized in that:It is described according to preset rules that terminal to be measured is consistent with radio frequency Property measuring device and external equipment are attached by RF cable, including:The output interface of the comprehensive test instrument and it is described to The input interface of terminal is surveyed through being directly connected inside RF consistency measuring device;The output interface of the terminal to be measured is in radio frequency Conducting is coupled with the input interface of comprehensive test instrument by signal combining and signal coupling inside coherence measurement device;The signal Source output interface is connected by signal combining with the output interface of terminal to be measured inside RF consistency measuring device.
3. according to the method described in claim 1, it is characterized in that:It is described according to preset rules that terminal to be measured is consistent with radio frequency Property measuring device and external equipment are attached by RF cable, including:The terminal output to be measured is in RF consistency The conducting that is connected with the input terminal of frequency spectrograph is coupled by signal combining and signal inside measuring device.
4. according to the method described in claim 2, it is characterized in that:The RF consistency measuring device include test box and Extension box;The signal combining module inside case and the intermodulation interference signal carry out the signal that the measured terminal returns after tested Signal combining, output test signal;It is described test signal by inside test box signal coupling module complete signal coupling after, The filter module of expanded case is filtered, and is eventually sent to frequency spectrograph and signal source;The extension box and the survey Examination case is attached according to preset rules by RF cable.
5. according to the method described in claim 1, it is characterized in that:Use test controller and the comprehensive test instrument, frequency spectrograph, letter Number source and the RF consistency measuring device are communicatively coupled;It is small that the test controller controls the comprehensive test instrument progress The configuration of area's relevant parameter, and initial frequency point to be measured and initial bandwidth to be measured are set;Test controller setting signal source Export the parameter of intermodulation interference signal;The test controller reads the test result of the comprehensive test instrument and frequency spectrograph measurement; The test controller adjusts the numerical value of frequency point to be measured and bandwidth to be measured.
6. a kind of 1800M RF consistency emits intermodulation testing device, described device includes:Test box;
The test box includes digital control circuit and switch unit;
The digital control circuit is made of multiple modular circuit modules, and the multiple circuit module includes signal coupled mode Block and signal are combined module, and the signal coupling module is used to carry out signal coupling processing to the signal of input;The signal It is combined module to be used to carry out signal combining to the multiple groups signal of input, exports one group of signal;According to default between the circuit module Rule carries out connection;
The switch unit includes multiple signal paths, and each of the multiple signal path is used for will be outer according to preset rules The module or other signal paths of portion's equipment and digital control circuit are attached by RF cable;The switch unit is used for Control the on-off of each signal path;The external equipment includes comprehensive test instrument, signal source and frequency spectrograph.
7. device according to claim 6, it is characterised in that:Described device further includes extension box;
The extension box includes extension control circuit and expanding element;
The extension control circuit is used to handle the signal of the extension control circuit of input, the extension control electricity Multiple modular circuit module compositions are routed, the multiple circuit module includes filter module;The filter module for pair The signal of input is filtered;Connection is carried out according to preset rules between the circuit module;
The expanding element includes N number of by expansion interface and M secondary expansion interfaces;It is described it is N number of by expansion interface be used for The signal path of test box is connected, and receives the extension signal of test box;Each of the M secondary expansion interfaces are used for root External expansion equipment is attached with extension control circuit or other interfaces by RF cable according to extension signal.
8. device according to claim 7, it is characterised in that:The signal path of the switch unit of the test box includes N A expansion interface and 1 road control interface;The expanding element of the extension box includes 1 tunnel by control interface;
N number of expansion interface of the test box is connected with the N number of of the extension box by expansion interface, and test box leads to signal is extended It crosses expansion interface and extension box is sent to by expansion interface;The control interface of the test box and extension box by control interface It is connected, test box sends control signals to extension box by control interface and by control interface.
9. device according to claim 6, it is characterised in that:Described device includes test controller, and the test box is opened Closing unit includes machine control interface, and the expanding element of the extension box includes striking machine control interface, and the test controller passes through institute It states machine control interface to be connected with test box, be connected by the striking machine control interface with extension box;The test controller is used for root Configure test case and test parameter according to testing requirement, and with outside the test box, extension box and test box and extension box The equipment connect is communicated;The control signal includes each module of digital control circuit and each signal of switch unit for controlling Connection type between connection type between access, and each module of extension control circuit and each interface of expanding element.
10. device according to claim 9, it is characterised in that:The test controller for control the comprehensive test instrument into The configuration of row cell relevant parameter, and initial frequency point to be measured and initial bandwidth to be measured are set;The test controller is for setting Set the parameter of signal source output intermodulation interference signal;The test controller is for reading the comprehensive test instrument and frequency spectrograph measurement Test result;The test controller is used to adjust the numerical value of frequency point to be measured and bandwidth to be measured.
CN201810538904.8A 2018-05-30 2018-05-30 A kind of 1800M RF consistency transmitting intermodulation testing method and device Pending CN108833029A (en)

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CN110618374A (en) * 2019-10-16 2019-12-27 普联技术有限公司 Radio frequency chip Loadpull test method and system
CN112305307A (en) * 2020-12-21 2021-02-02 深圳市鼎阳科技股份有限公司 Third-order intermodulation measurement method of spectrum analyzer and spectrum analyzer
CN114125126A (en) * 2021-12-06 2022-03-01 Oppo广东移动通信有限公司 Intermodulation interference positioning method and device and storage medium

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