Automatic digital array reception channel performance test system based on cPCI

Abstract

The invention discloses an automatic digital array reception channel performance test system based on cPCI. The system comprises a host computer and a data acquisition board card based on a cPCI interface, wherein the data acquisition board card comprises a cPCI interface unit, a processing control unit, a buffering unit and a photoelectric conversion unit, the photoelectric conversion unit is connected with the processing control unit, the data is acquired by the processing control unit through the photoelectric conversion unit and is stored in the buffering unit, the processing control unit realizes communication with the host computer through the cPCI interface unit, work parameters are configured by the processing control unit on the basis of a control instruction of the host computer, the buffering data is transmitted to the host computer, the host computer is used for emitting a control instruction to the data acquisition board card for performing data acquisition, the reception data is drafted into frequency domain and / or a time domain waveforms which are then outputted, test index operation is carried out on the basis of the reception data, and output is carried out. Through the system, performance test on each reception part of a digital array radar device is carried out, rapid, high-efficiency and accurate performance evaluation can be realized, and fault positioning can be further realized.

Description

Technical field [0001] The invention belongs to the technology of digital array radar, and specifically relates to an automatic test technology of the receiving channel performance of the digital array radar. Background technique [0002] Digital array radar adopts a large number of digital technologies when transmitting and receiving. It is easy to weight the amplitude and phase to achieve low sidelobe and adaptive anti-interference. It is easy to control the beam direction through digital delay and digital phase shift, and realize multi-beam multi-target processing and wide bandwidth angle. Scanning and other functions. [0003] The performance within a single receiving channel and between multiple channels of the digital array radar will directly affect the radar's target search, tracking accuracy, imaging effect, etc. Therefore, in the debugging process before the whole radar is assembled, it is necessary to measure the performance indexes of its various receiving sub-componen...

AI Technical Summary

Problems solved by technology

[0004] At present, traditional instrument-based test systems, such as network analyzers, signal sources with oscilloscopes and spectrum analyzers, often can only test the previous part of the digital receiving part of the receiving channel of the array radar, and the test work is cumbersome; while other digital Receivers, with fewer test indicators, are often only used for performance testing of digital receivers

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