基于软件无线电的自定义相位扩频编码与FPGA实现

Self-defined Phase Encode Spread Spectrum Technology Based On Software Defined Radio and its Implementation Using FPGA

针对军用软件无线电安全性和硬件可编程的特殊要求,提出一种基于FPGA的的自定义相位扩频编码方案并应用于软件无线电台,该方案融合了自编码扩频的思想,并基于传统的反馈移位寄存器产生随机序列。通过多项性能指标的仿真与传统扩频编码技术及自扩频编码技术对比,验证新编码技术的优越性并给出了FPGA的实现方案。文章最后指出自定义相位扩频技术研究方向。

In order to satisfy the security martial communication and hardware programmable, this article introduced a self-defined phase （SDP） encode technology based on software defined radio （SDR） system implemented on FPGA. This technology integrated the method of self-encoded spectrum system, and based on traditional shift feedback register random sequence. Compared to traditional spread spectrum encode and self-encoded spread spectrum, the advantage of SDP encode is validated by simulation. The implementation using FPGA and the simulation result is given is this article. The direction of SDP technology is indicated in the end of the article.