Design of Test System for Communication Terminal and Encryption Components of Digital Private Network
In order to improve the test efficiency of digital private network communication terminal and corollary encryption com-ponents,and reduce the construction,operation,and labor costs of practical testing environments,a design of testing system based on hardware-in-the-loop simulation is carried out;Analyze the testing requirements of communication terminal and encryption compo-nents,propose and implement a method for simulating the communication chain construction process and encryption communication service process of digital private network;the architecture of general Advanced TCA eXtensions for Instrumentation and Test(AXIe)test platform and extended test instruments is adopted to design the system,the physical interface configuration and signal modulation and message data interaction control with different test objects are realized through the test instrument,it provides automated testing technology means for the success rate of encryption service,voice quality evaluation and remote working current measurement of com-munication terminal and encryption components;After the verification,the communication link delay of the test system is less than 100 ns,it can provide a good voice quality evaluation environment for the communication terminal,and the tested perceptual evalua-tion of speech quality(PESQ)is not less than 4.20,it can support unmanned testing,with a success rate of encryption service not less than 99.9％.
communication terminal and encryption componentstesting systemhardware-in-loop simulationanalog/digital pri-vate networkAXIe platform
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