二维码(扫一下试试看!) | 基于FPGA的单脉冲雷达信号预处理系统设计与实现 | Design and Implement on Monopulse Radar Signal Preprocessing System Base on FPGA | 投稿时间:2016-05-11 | DOI:10.15918/j.tbit1001-0645.2018.07.015 | 中文关键词:FPGA单脉冲下变频脉冲压缩 | English Keywords:FPGAmonopulsedown conversionpulse compression | 基金项目: | | 摘要点击次数:752 | 全文下载次数:386 | 中文摘要: | 由于单脉冲雷达信号预处理运算量大,算法结构比较固定,本文采用FPGA实现预处理系统,对三路中频进行采样,并将采样结果分别进行下变频得到基带数字信号.考虑到信号有多种模式,并且脉压所占用的资源较多,所以采用一个脉压模块完成三路信号不同模式的脉压处理.通过FPGA产生测试信号,将测试信号输入到ADC中,实现回环测试.将处理结果与仿真结果进行对比分析,二者一致,表明设计的系统合理可行. | English Summary: | Monopulse radar signal preprocess is very important in signal preprocess, but monopulse radar signal preprocess requires large amount of computation with fixed algorithm structure relatively. To solve the problem, a field programmable gate array (FPGA) was used to realize the preprocessing system. Firstly, sampling three channel IF signal, and the sampled data were respectively used for down conversion to obtain the baseband digital signal. Considering a variety of patterns of the signal, and a lot of resources in pulse compression, a pulse compression module was used to complete the processing of three signals of different modes. Then a test signal was generated with FPGA and input to the ADC to realize the loopback test. Finally, the processing result and simulation result were compared and analyzed. The consistent results show that the design of the system is reasonable and feasible. | 查看全文查看/发表评论下载PDF阅读器 | |
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