CN114900247A - Intelligent testing arrangement that two-way comparison of two pseudo-codes - Google Patents
Intelligent testing arrangement that two-way comparison of two pseudo-codes Download PDFInfo
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Abstract
The invention discloses a double-pseudo-code two-way comparison system testing device, which is characterized in that a tested data protocol is injected into a double-pseudo-code signal transmitting intelligent testing unit and a double-pseudo-code signal receiving intelligent testing unit by performing data format conversion according to the data protocol of the tested device, the double-pseudo-code signal transmitting intelligent testing unit and the double-pseudo-code signal receiving intelligent testing unit are respectively utilized for automatic measurement, a testing result is transmitted to an intelligent control and data processing unit for processing and calculating time difference data, and finally the time difference measuring result is subjected to statistical analysis to confirm the performance level of the tested double-pseudo-code device; the problem that the existing double-pseudo-code bidirectional time comparison system is difficult to test and evaluate is solved, and the performance test and evaluation of system indexes are completed quickly and conveniently.
Description
Technical Field
The invention relates to the technical field of electronic equipment testing, in particular to an intelligent testing device for bidirectional comparison of double pseudo codes.
Background
The bidirectional time comparison method for satellite is a high-precision time transmission technique, and utilizes the forward time of geosynchronous communication satellite to transmit the timing modulation information between earth stations so as to implement time information interaction and high-precision time difference measurement of all stations. In recent years, with the progress of satellite communication and pseudo code spread spectrum technology, the precision of a satellite two-way time transfer system is further improved, and at present, the satellite two-way time transfer becomes a main means of international atomic Time (TAI) calculation and standard time tracing, and is widely applied to the fields of high-precision inter-station synchronization, radio navigation and the like. The satellite two-way time comparison technology based on the double pseudo codes belongs to the next generation satellite two-way time comparison technology and has the characteristics of narrow occupied bandwidth, high time comparison precision and the like. The bidirectional comparison algorithm of the double-pseudo code is complex, three times of modulation are needed to realize generation and emission of the double-pseudo code signal, and multi-loop tracking demodulation is needed to be carried out on the double-pseudo code signal during receiving.
The satellite two-way time comparison technology based on the double pseudo codes belongs to the next generation satellite two-way time comparison technology and has the characteristics of narrow occupied bandwidth, high time comparison precision and the like. The bidirectional comparison algorithm of the double-pseudo code is complex, three times of modulation are needed to realize generation and emission of the double-pseudo code signal, and multi-loop tracking demodulation is needed to be carried out on the double-pseudo code signal during receiving. The spectrum of the double-pseudo code signal in the frequency domain is split and variable, which brings great trouble to the comprehensive evaluation of the system performance. The current development work of the double-pseudo-code bidirectional time comparison equipment makes some progress, prototype equipment gradually appears, but no particularly simple and feasible way is adopted to carry out intelligent test on devices with different bandwidths and different coding modes, only a test system can be developed specifically aiming at a certain equipment, the test consumption is large, and the performance test and evaluation of system indexes cannot be completed quickly and conveniently.
In recent years, the double-pseudo-code time comparison technology has the characteristics of good real-time performance, small occupied bandwidth resource and high comparison precision, is more and more concerned by people, and also shows the trend of networking application. When the multi-platform networking application is used, data transmission in real time is generally required to be carried out so as to give full play to the advantages of the multi-platform networking application, but because the data transmission capability of a channel of the double-pseudo-code bidirectional comparison device is limited, the number of comparison platforms participating in networking is limited by the data transmission capability, and the networking scale cannot be increased substantially. If the problem is avoided by means of time-sharing comparison, data transmission through other channels and the like, the real-time requirement of the system is damaged, so that the problem of how to solve networking data interaction and improve networking scale is very important.
Disclosure of Invention
The invention aims to provide a testing device of a double-pseudo-code bidirectional comparison system, which can evaluate the performance of the double-pseudo-code bidirectional comparison system and solve the problem that the current double-pseudo-code bidirectional time comparison system is difficult to test and evaluate.
An intelligent testing device of a double-pseudo-code bidirectional comparison system is used for testing and verifying the bidirectional comparison precision of a double-pseudo-code satellite, and comprises:
the signal processing unit is in signal connection with the device to be tested and is used for providing a standard radio frequency signal;
the signal testing unit is in signal connection with the signal processing unit and is used for data interaction and automatic measurement;
the control and data processing unit is in signal connection with the signal processing unit and the signal testing unit and is used for system control and state monitoring;
the testing device and the tested device work under the drive of the same time reference and frequency reference, and parameters such as bandwidth, center frequency, subcarrier frequency, pseudo code rate, power and the like of the tested device are calculated through the signal processing unit in a matching mode.
In one embodiment, the signal processing unit comprises a signal adaptation device, and outputs a measured intermediate frequency double pseudo code signal, which is used for adapting the measured signal to an intermediate frequency and adapting a standard intermediate frequency signal to an input frequency and power range of the measured device.
In one embodiment, the signal testing unit comprises an emission testing unit and a receiving testing unit, and a signal input end of the emission testing unit is connected with an output end of the signal self-adaptive device through a serial port; and the signal output end of the receiving test unit is connected with the input end of the signal self-adaptive device through a serial port and is used for generating and demodulating a standard double-pseudo-code signal.
In one embodiment, the signal processing unit injects the tested data protocol into the transmitting test unit and the receiving test unit, the transmitting test unit and the receiving test unit perform automatic measurement, and the test result is transmitted to the control and data processing unit for processing the time difference data.
In one embodiment, the control and data processing unit is further configured to perform statistical analysis on the time difference measurement to determine a performance level of the device under test.
In one embodiment, the signal processing unit adopts a digital processing chip.
An electronic device, comprising: a memory and one or more processors;
wherein the memory is communicatively coupled to the one or more processors and stores instructions executable by the one or more processors, and when the instructions are executed by the one or more processors, the electronic device is configured to implement the method of any of the above embodiments.
A computer-readable storage medium having stored thereon computer-executable instructions, which when executed by a computing device, may be used to implement the apparatus of any of the above embodiments.
A computer program product comprising a computer program stored on a computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, may be used to implement an apparatus as in any one of the above embodiments.
The technical scheme has the following advantages or beneficial effects:
the testing device of the double-pseudo-code bidirectional comparison system injects a tested data protocol into a double-pseudo-code signal transmitting intelligent testing unit and a double-pseudo-code signal receiving intelligent testing unit by performing data format conversion according to the data protocol of the tested device, automatically measures by respectively utilizing the double-pseudo-code signal transmitting intelligent testing unit and the double-pseudo-code signal receiving intelligent testing unit, transmits a testing result to an intelligent control and data processing unit for processing and calculating time difference data, and finally performs statistical analysis on the time difference measuring result to confirm the performance level of the tested double-pseudo-code device; the problem that the existing double-pseudo-code bidirectional time comparison system is difficult to test and evaluate is solved, and the performance test and evaluation of system indexes are completed quickly and conveniently.
Drawings
FIG. 1 is a schematic structural diagram of a testing apparatus of a bi-directional double-pseudo-code comparison system according to the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The satellite clock synchronization time service technology is widely applied to the fields of military, science and technology, economic life and the like. Firstly, accurately determining the deviation of a user clock relative to standard time; second, clock synchronization is achieved at two or more different locations.
Satellite clock synchronization technology provides a time synchronization reference for users worldwide. The satellite navigation system has own system time, the system time is compared with the UTC time, and the difference value between the satellite navigation system time and the UTC time is generally kept within a certain range. For example, Beidou is that the clock difference between BDT and UTC is kept within 100ns (modulo 1 s). The difference value between the system time and the UTC time is released in the navigation message, so that the user can recover the UTC time by recovering the navigation system time by receiving the navigation satellite signal. In fact, satellite navigation systems have become the dominant means of propagation of UTC time.
Satellite clock satellite time service is a process of locally recovering original time by using a satellite as a time reference source or a forwarding medium and by a method of receiving satellite signals and performing time delay compensation. According to the working principle, satellite time service is divided into two modes of RNSS time service and RDSS time service.
If a satellite carries a high-precision time source, navigation signals of the satellite are generated according to the time source, a user realizes pseudo-range measurement and positioning calculation by receiving a plurality of satellite signals, and thus self time synchronization is realized, and the positioning or time service mode is called RNSS positioning or time service, such as GPS, GALILEO and a Beidou satellite navigation system which is currently built; RNSS time service is divided into two modes of positioning timing and position keeping timing, and the positioning timing refers to the real-time synchronization when a user realizes positioning calculation; the position holding timing means timing that a user can maintain a given accuracy by receiving only 1 to 2 satellites without changing the position.
If the satellite does not have a high-precision time source, the relay is determined by time delay after receiving the signal of the ground station, and the process is called RDSS time service or relay type time service, such as CAPS, Beidou satellite navigation experiment system and the like.
RDSS teaches two ways: one is bidirectional time service, in which a user needs to send a request to a satellite and then receive satellite response information; and the other is unidirectional time service, and the user only receives the satellite downlink signal, so that the method is suitable for low-dynamic users. Under the one-way time service mode, the user needs to obtain the accurate position of the user. Two methods are currently in common use: one is to use GPS to assist positioning, and to input the positioning result into the receiver after coordinate conversion; the other method is to use elevation to assist positioning, and because three RDSS satellites exist at present, the elevation is used as a virtual fourth satellite, and positioning can be realized by solving a positioning equation. In the RDSS time service, since the satellite position updated once a minute is included in the RDSS navigation message, the calculation of the satellite position is generally obtained by interpolation fitting.
The satellite clock synchronization is widely applied under the development of science and technology, for example, the satellite clock synchronization is used in the fields of industry, scientific research, aerospace, public places and the like, the satellite clock synchronization uses the satellite time as the reference to accurately time, and the defects of single time service, large time error and the like of the traditional clock are overcome.
The satellite clock synchronization refers to a time server which receives satellite signals and carries out time synchronization through an NTP network protocol. The NTP network time server is provided with a satellite signal receiver which can receive satellite signals and use network signals for time service, each network port is an independent local area network and is not interfered with each other, and the satellite clock synchronization can be used for time service for various different time systems.
The satellite clock time service principle is as follows:
HR-901GB big dipper NTP network time server utilizes satellite antenna receiving GPS big dipper satellite time information, transmits for time server through coaxial cable, and time server receives satellite signal through inside receiver and carries out time synchronization to this machine, then transmits for pointer-type sub-clock and other network terminal equipment through NTP network protocol, makes terminal equipment and time server time synchronization, and this time server can also give serial ports terminal equipment time service through serial ports information, tests time server through 1PPS synchronization pulse signal.
The principle of satellite clock timekeeping:
when the HR-901GB Beidou NTP network time server receives satellite signals to provide time for the terminal equipment, the time accuracy cannot be ensured under the condition that the time server loses the satellite signals, and a time service appliance time keeping function is needed. The time server is internally provided with a high-precision temperature compensation crystal oscillator, can realize a long-time and high-precision time keeping function under the condition that the satellite is unlocked, provides accurate time information and pulse output time, and is a special time service instrument for establishing a time scale and realizing time unification. The time server can also select modules with higher time keeping precision, such as a constant temperature crystal oscillator, a rubidium atomic clock, a taming constant temperature crystal oscillator module, a taming rubidium clock module and the like.
Referring to fig. 1, an intelligent testing device of a dual-pseudo-code two-way comparison system is used for testing and verifying the dual-pseudo-code satellite two-way comparison accuracy, and includes:
the signal processing unit 1 is in signal connection with a device to be tested and used for providing standard radio frequency signals;
the signal testing unit 2 is in signal connection with the signal processing unit 1, is used for data interaction and carries out automatic measurement;
the control and data processing unit 3 is in signal connection with the signal processing unit 1 and the signal testing unit 2 and is used for system control and state monitoring;
the testing device and the tested device work under the drive of the same time reference and frequency reference, and parameters such as bandwidth, center frequency, subcarrier frequency, pseudo code rate, power and the like of the tested device are calculated in a matched mode through the signal processing unit 1.
The invention can test and evaluate various double-pseudo code bidirectional comparison devices, but key parameters such as code patterns, subcarrier frequencies, carrier frequencies, data formats and the like need to be disclosed in advance by the tested device so as to calculate and configure the parameters in the device, thereby realizing intelligent test.
During specific work, the internal carrier frequency, the subcarrier frequency, the code rate, the code pattern, the data transmission format and the like of the device need to be preset according to specific parameters of the tested double-pseudo-code bidirectional comparison, then the invention automatically generates a standard double-pseudo-code signal, receives the tested double-pseudo-code signal and solves time difference measurement information, and finally completes the performance test and evaluation of the double-pseudo-code bidirectional comparison device.
Further, in a preferred embodiment of the testing apparatus for a bi-directional double-pseudo-code comparison system according to the present invention, the signal processing unit 1 includes a signal adaptive device 11, which outputs a measured intermediate frequency double-pseudo-code signal for adapting the measured signal to an intermediate frequency and adapting a standard intermediate frequency signal to an input frequency and a power range of the measured device.
Further, in a preferred embodiment of the testing apparatus for a two-way comparison system of double pseudo codes of the present invention, the signal testing unit 2 includes an emission testing unit 21 and a reception testing unit 22, and a signal input end of the emission testing unit 21 is connected to an output end of the signal adaptive apparatus 11 through a serial port; the signal output end of the receiving test unit 22 is connected with the input end of the signal adaptive device 11 through a serial port, and is used for generating and demodulating a standard double-pseudo-code signal.
The radio frequency signal input end of a signal processing unit 1 of the comparison test device is connected with a signal of a device to be tested, and the intermediate frequency signal output end of a signal self-adapting device 11 outputs a signal of an intermediate frequency double pseudo code to be tested and is connected with the signal input end of a transmitting test unit 21; the radio frequency signal output end of the signal processing unit 1 is connected with a tested device and provides a standard radio frequency signal; the input end of the signal self-adapting device 11 of the signal processing unit 1 is connected with the signal output end of the receiving test unit 22; the control and data processing unit 3 is connected with the transmitting test unit 21 and the receiving test unit 22 through serial ports respectively, and is used for data interaction. The control and data processing unit 3 is connected with the signal processing unit 1 through a serial port and used for system control and state monitoring.
Further, in a preferred embodiment of the testing apparatus for a dual pseudo code bidirectional comparison system of the present invention, the signal processing unit 1 injects a tested data protocol into the transmitting test unit 21 and the receiving test unit 22, and performs automatic measurement through the transmitting test unit 21 and the receiving test unit 22, and transmits a test result to the control and data processing unit 3 for processing the time difference data.
Further, in a preferred embodiment of the testing apparatus for a bi-directional double-pseudo-code comparison system of the present invention, the control and data processing unit 3 is further configured to perform statistical analysis on the time difference measurement result to determine the performance level of the tested apparatus.
Further, in a preferred embodiment of the testing apparatus for a bi-directional double-pseudo-code comparison system of the present invention, the signal processing unit 1 employs a digital processing chip.
There are two ways to obtain intermediate frequency data: 1) the method comprises the steps that the data are obtained by a receiving antenna and a radio frequency front end, wherein the radio frequency front end can adopt a commercial chip; 2) the data input module is used for acquiring, wherein the data of the data input module can be from intermediate frequency data acquired by a radio frequency front end, and can also be from intermediate frequency data simulated by a signal simulator.
The data collected by the radio frequency front end is converted into parallel output data through the microprocessor, and the parallel output data is input into the buffer area and is transmitted to a subsequent processing link through the data transmission interface. The microprocessor is FPGA (field Programmable Gate array), CPLD (Complex Programmable Logic device), ARM (advanced RISC machines) or DSP (digital Signal processor), etc., and the transmission interface is USB, Ethernet or PCIe, etc.
The intermediate frequency data stored in the computer is input into the microprocessor through the transmission interface, and the parallel input data is converted into serial data, input into the buffer area and transmitted to the subsequent processing link.
After obtaining the signal transmitted by the radio frequency front end or the data input module, a correlator is designed for each satellite signal, which is called a single-channel correlator, and the single-channel correlator consists of correlation operation, signal measurement and a register set: the related operation part realizes the stripping of carrier and code, and is composed of a carrier NCO (numerical-Controlled Oscillator), a code NCO, a code generator, a mixer, carrier phase accumulation, code phase accumulation and zero clearing and other links; the signal measurement part realizes the extraction of code phase, carrier phase, Doppler frequency shift and the like; the register group comprises a control register of a carrier and a code NCO, an accumulation zero clearing register, a measurement interrupt register and the like.
Hardware correlators and software correlators are divided according to the difference of processors for realizing the correlators, wherein the hardware correlators are realized in a microprocessor, the software correlators are realized in a computer, the functions of the hardware correlators and the software correlators are completely the same, the difference is only a driving mode, the hardware correlators are driven by a timing reference signal, and the software correlators are driven by a logic timing reference signal.
And the output of the correlator is transmitted to a subsequent baseband processing and navigation resolving link to complete the satellite navigation task.
Baseband processing includes acquisition and tracking of carrier and code signals. The capture may be performed in the time domain or the frequency domain: the time domain capture is mainly completed in the time domain through linear search, and commonly used algorithms include M-out-of-N and Tang detection algorithms; the frequency domain acquisition mainly adopts FFT (fast Fourier transform) to convert the related convolution operation into the frequency domain for multiplication.
The double-pseudo-code bidirectional comparison testing device is connected with the tested double-pseudo-code comparison device through a standard cable. The double-pseudo-code bidirectional comparison testing device calculates parameters such as bandwidth, center frequency, subcarrier frequency, pseudo-code rate, power and the like of the tested double-pseudo-code comparison device in a matching manner under the control of the intelligent control and data processing unit, and utilizes the front-end signal adaptive processing unit to self-adapt a tested signal to an intermediate frequency and self-adapt a standard intermediate frequency signal to the input frequency and power range of the tested device. And evaluating the stored data in a time domain, a frequency domain, a modulation domain, a correlation domain, a measurement domain, a data domain and a service domain, comparing and analyzing the data with a monitoring evaluation template, wherein the time domain, the frequency domain, the modulation domain, the correlation domain and the measurement domain are normal, indexes of the data domain and the service domain are abnormal, and E03 satellite telegraph text is not transmitted.
During performance test, firstly, the intelligent control and data processing unit carries out data format conversion according to a data protocol of a tested double-pseudo-code comparison device, and the tested data protocol is injected into the double-pseudo-code signal transmission intelligent test unit and the double-pseudo-code signal receiving intelligent test unit for generating and demodulating a standard double-pseudo-code signal, so that the two parties can complete comparison data calculation. And then, the double-pseudo-code signal transmitting intelligent test unit and the double-pseudo-code signal receiving intelligent test unit are respectively utilized to carry out automatic measurement, the test result is transmitted to the intelligent control and data processing unit to carry out processing calculation of time difference data, and finally, the time difference measurement result is subjected to statistical analysis to confirm the performance level of the tested double-pseudo-code device.
An electronic device, comprising: a memory and one or more processors;
wherein the memory is communicatively coupled to the one or more processors and has stored therein instructions executable by the one or more processors, the instructions, when executed by the one or more processors, operable by the electronic device to implement an apparatus as in any one of the above.
In particular, the processor and the memory may be connected by a bus or other means, such as by a bus connection. The processor may be a Central Processing Unit (CPU). The Processor may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, or a combination thereof.
The memory, as a non-transitory computer readable storage medium, may be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as the cascaded progressive network in the embodiments of the present application. The processor executes various functional applications and data processing of the processor by executing non-transitory software programs/instructions and functional modules stored in the memory.
The memory may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by the processor, and the like. Further, the memory may include high speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes memory located remotely from the processor, and such remote memory may be coupled to the processor via a network, such as through a communications interface. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
A computer-readable storage medium having stored thereon computer-executable instructions, which when executed by a computing device, may be used to implement an apparatus as in any above.
The foregoing computer-readable storage media include physical volatile and nonvolatile, removable and non-removable media implemented in any manner or technology for storage of information such as computer-readable instructions, data structures, program modules or other data. The computer-readable storage medium specifically includes, but is not limited to, a USB flash drive, a removable hard drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), an erasable programmable Read-Only Memory (EPROM), an electrically erasable programmable Read-Only Memory (EEPROM), flash Memory or other solid state Memory technology, a CD-ROM, a Digital Versatile Disk (DVD), an HD-DVD, a Blue-Ray or other optical storage, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer.
While the subject matter described herein is provided in the general context of execution in conjunction with the execution of an operating system and application programs on a computer system, those skilled in the art will recognize that other implementations may also be performed in combination with other types of program modules. Generally, program modules include routines, programs, components, data structures, and other types of structures that perform particular tasks or implement particular abstract data types. Those skilled in the art will appreciate that the subject matter described herein may be practiced with other computer system configurations, including hand-held devices, multiprocessor systems, microprocessor-based or programmable consumer electronics, minicomputers, mainframe computers, and the like, as well as distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote memory storage devices.
Those of ordinary skill in the art will appreciate that the various illustrative elements and method steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method according to the embodiments of the present application.
In summary, the testing device of the dual-pseudo code bidirectional comparison system provided by the invention performs data format conversion according to the data protocol of the tested device, injects the tested data protocol into the dual-pseudo code signal transmission intelligent testing unit and the dual-pseudo code signal reception intelligent testing unit, respectively uses the dual-pseudo code signal transmission intelligent testing unit and the dual-pseudo code signal reception intelligent testing unit to perform automatic measurement, transmits the testing result to the intelligent control and data processing unit to perform processing calculation of time difference data, and finally performs statistical analysis on the time difference measuring result to confirm the performance level of the tested dual-pseudo code device; the problem that the existing double-pseudo-code bidirectional time comparison system is difficult to test and evaluate is solved, and the performance test and evaluation of system indexes are completed quickly and conveniently.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", and the like, which indicate orientations or positional relationships, are based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Claims (6)
1. The utility model provides an intelligent testing arrangement of two-way comparison system of two pseudo-codes for to the test verification of two-way comparison precision of two pseudo-code satellite, its characterized in that includes:
the signal processing unit (1) is in signal connection with the device to be tested and is used for providing standard radio frequency signals;
the signal testing unit (2) is in signal connection with the signal processing unit (1) and is used for data interaction and automatic measurement;
the control and data processing unit (3) is in signal connection with the signal processing unit (1) and the signal testing unit (2) and is used for system control and state monitoring;
the testing device and the tested device work under the driving of the same time reference and frequency reference, and parameters such as bandwidth, center frequency, subcarrier frequency, pseudo code rate, power and the like of the tested device are calculated in a matched mode through the signal processing unit (1).
2. The intelligent testing device of the bi-pseudo code bi-directional comparison system as claimed in claim 1, wherein the signal processing unit (1) comprises a signal adaptation device (11) outputting the measured intermediate frequency bi-pseudo code signal for adapting the measured signal to the intermediate frequency and adapting the standard intermediate frequency signal to the input frequency and power range of the measured device.
3. The intelligent test device of the double-pseudo-code bidirectional comparison system as claimed in claim 2, wherein the signal test unit (2) comprises a transmitting test unit (21) and a receiving test unit (22), and a signal input end of the transmitting test unit (21) is connected with an output end of the signal adaptive device (11) through a serial port; and the signal output end of the receiving test unit (22) is connected with the input end of the signal self-adaptive device (11) through a serial port and is used for generating and demodulating a standard double-pseudo-code signal.
4. The intelligent testing device of the dual-pseudo-code bidirectional comparison system as claimed in claim 3, wherein the signal processing unit (1) injects the tested data protocol into the transmitting testing unit (21) and the receiving testing unit (22), and the transmitting testing unit (21) and the receiving testing unit (22) perform automatic measurement, and transmit the testing result to the control and data processing unit (3) for processing the time difference data.
5. The intelligent testing device of the double-pseudo-code bidirectional comparison system as claimed in claim 4, wherein said control and data processing unit (3) is further configured to perform statistical analysis on the time difference measurement results to confirm the performance level of the tested device.
6. The intelligent testing device of the double-pseudo-code bidirectional comparison system as claimed in claim 1, wherein the signal processing unit (1) adopts a digital processing chip.
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