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利用某一雷达作为外辐射源,借助双(多)基地雷达收发分置的体制优势,通过多站分布协同,实现对一定范围区域的有效监测。在此工作背景下,为了能在接收机处有效地检测微弱目标,作为匹配滤波和相关接收理论的实际应用,脉冲压缩在信号处理中发挥着重要作用。借助现场可编程逻辑器件(FPGA)可在脉冲压缩环节实现信号高速处理,考虑实现过程中回波信号的特征,选择合适的压缩算法,同时综合FPGA硬件电路的设计特点,对脉压环节进行优化,便于后续的检测设计和功能拓展。
The use of a radar as the external radiation source, with the dual (multi) base transceiver system advantages of radar, through the coordination of multi-station distribution, to achieve a range of effective monitoring. In this background, in order to effectively detect weak targets at receiver, pulse compression plays an important role in signal processing as a practical application of matched filtering and related receiving theory. With the help of field programmable logic device (FPGA), high speed signal processing can be realized in pulse compression, and the characteristics of echo signal in the process of implementation are considered, and the appropriate compression algorithm is selected. At the same time, the design of FPGA hardware circuit is integrated to optimize the pulse compression , Easy to follow-up test design and function development.