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提出了一种基于软件无线电思想的测速雷达信号采集方法。文中分别讨 论了用传统方法实现的和基于软件无线电思想实现的变采样频率信号采集系统，着重 分析了后者的各个功能模块，并给出了其原理框图。
A velocity radar signal acquisition method based on software radio is proposed. The article separately discusses the variable sampling frequency signal acquisition system realized by the traditional method and based on the software radio thought, and emphatically analyzes each of the latter functional modules, and gives the block diagram of the principle.