基于块处理的扩频信号实时捕获及其FPGA实现

Real-Time Acquisition of Direct Spread Spectrum Signal Based on Block Processing and Implementation using FPGA

块处理方法实现扩频信号的捕获因其运算量巨大到目前为止多用于软件接收机中。本文从扩频信号的实时捕获出发,研究了块处理技术及其结构,设计了基于块处理技术的扩频信号捕获的总体实现方案和各个功能模块,详细介绍了其实现方法并用FPGA给予实现。并给出了实际运行结果。结果表明该设计能成功完成扩频信号实时快速捕获。

Fast Direct spread spectrum signal acquisition using block processing technique has been only used in software receivers because of the huge computation. For the real-time acquisition of direct spread spectrum signal, blocking processing technique and its architecture were studied in this article. The overall realization diagram and implementation of each functional block using FPGA were described in detail. The experiment results were also provided. As a result, the design can acquire direct spread spectrum signal in real time successfully.