Radar signal unit performance test and fault diagnosis system based on general test platform

Abstract

The invention relates to the technical field of radar circuit fault detection and diagnosis, specifically to a radar signal unit performance test and fault diagnosis system based on a general test platform. The system comprises a general test platform, a test procedure set, an interface connection module, an interface test adapter and a signal processing unit to be tested, the general test platform includes general test instruments and hardware resources including a test procedure set, a programmable power supply, a spectrometer, a signal generator, a digital oscilloscope, a digital triple-purpose meter, a digital I / O, a communication interface, a multichannel ADC and a multichannel DAC, and the test platform is connected with the interface test adapter through the interface connection module. By adoption of a system architecture of the general test platform plus the interface test adapter, the system has very strong universality and expandability, allows multiple equipment to share one test platform, and the interface test adapter adopts a hardware architecture of FPGA+ARM, and has very strong universality, expansibility and reconfigurability.

Description

Technical field: [0001] The invention relates to the technical field of radar circuit fault detection and diagnosis, in particular to a radar signal unit performance test and fault diagnosis system based on a test platform. Background technique: [0002] Phase-encoded interrupted continuous wave radar solves the contradiction between the range and resolution of pulse radar through pulse compression technology, and at the same time effectively improves the low intercept performance of radar, which has been widely used in modern radars. [0003] The radar signal processing unit is one of the key circuits for phase code interrupt continuous wave radar. It is mainly composed of high-speed ADC, FPGA, DSP and other devices to complete the digitization of radar intermediate frequency echo signals, quadrature down-conversion, pulse compression, and Doppler compensation. , clutter cancellation and target detection functions. Its performance will directly affect the technical indicat...

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Problems solved by technology

[0005] The patent application number is CN201120476100.3, and the Chinese patent titled "A Radar Fault Diagnosis System Based on BP Neural Network" mainly monitors the radar performance status in real time when the radar equipment is working, and can provide early warning information in time, but it Does not provide board-level testing and troubleshooting

Domestic and foreign patents related to the radar signal processing unit test system based on the general ATS platform have not yet been found

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