Self-adaptive broadband digital zero setting system and method based on Zynq chip

Abstract

The invention provides a self-adaptive broadband digital zero setting system and method based on a Zynq chip. The self-adaptive broadband digital zero setting system comprises an upper computer, a Zynq chip module and an AD / DA conversion module; the upper computer is connected with the Zynq chip module and is used for sending a working mode instruction and receiving returned monitoring data, and the Zynq chip module is connected with the AD / DA conversion module and is used for forming wave beams, sending wave beam data to the AD / DA conversion module, generating intermediate frequency signals of a zero setting circuit and transmitting the intermediate frequency signals to a subsequent circuit, wherein the AD / DA conversion module is used for inputting the intermediate frequency signal subjected to AD sampling into the Zynq chip module and receiving beam data generated by the Zynq chip module. The self-adaptive broadband digital zeroing circuit can replace a previous expensive FPGA + DSP framework under the background of a small-scale array, the two units are independently, parallelly and cooperatively work, the high-speed data interaction function is achieved through an AXI-GP interface and an AXI bus in the Zynq, the overall performance of the system is further improved, and the self-adaptive broadband digital zeroing circuit design is efficiently achieved.

Description

technical field [0001] The invention belongs to the field of digital array signal processing, in particular to an adaptive wideband digital zeroing system and method based on a Zynq chip. Background technique [0002] In recent years, array signal processing has been applied in many national economy and national defense technology fields such as radar, sonar, communication, seismic exploration, astronomy and medical diagnosis. At present, the research work on narrowband array signal processing is relatively extensive. The scope of processing applications is gradually expanding, and more and more broadband signal processing problems cannot be ignored. For example, in sonar systems, in order to obtain high range resolution and high Doppler resolution, improve target resolution and system anti-jamming capabilities, Broadband signals need to be used; in addition, in recent years, the communication field has increasingly required the use of wideband signals. Obviously, relying so...

AI Technical Summary

Problems solved by technology

[0005] For the FPGA+DSP architecture of the typical adaptive broadband digital zeroing circuit design under the current small-scale array background, the implementation of the discrete architecture is complex and the cost is relatively high; The bus interacts, which is greatly affected by interference and the system reliability is low

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