高频地波雷达实时信号并行处理方案及实现

发布时间：2018-10-13 16:51

【摘要】：近些年,随着高频地波雷达技术的发展,大量的遥感数据给实时信号处理带来了巨大的挑战。高频地波雷达信号处理机的主流设计方案通常采用DSP+FPGA技术或基于高性能CPU技术来实现信号的实时处理,但DSP+FPGA方案中系统的软硬件耦合较为紧密,开发周期长且不易维护,而高性能CPU技术对计算机性能要求较高,大大增加了硬件成本。在保证信号实时处理的前提下,为了缩短开发周期,提高系统的可维护性和降低开发成本,本文基于CPU+GPU架构设计了的信号处理方案,实现了高频地波雷达实时信号处理的基本流程,获取了目标的距离信息和速度信息。实验结果表明,本文提出的CPU+GPU架构下的信号处理方案与同期中央处理器(CPU)运算平台相比,具有10倍以上的加速比,验证了方案的可行性。
[Abstract]:In recent years, with the development of HF ground wave radar technology, a large number of remote sensing data have brought great challenges to real-time signal processing. The mainstream design scheme of HF ground wave radar signal processor usually adopts DSP FPGA technology or based on high performance CPU technology to realize the real-time signal processing. However, the software and hardware coupling of the system in the DSP FPGA scheme is tight, the development period is long and it is difficult to maintain. High performance CPU technology requires high performance of computer, which greatly increases the cost of hardware. In order to shorten the development cycle, improve the maintainability of the system and reduce the development cost, this paper designs a signal processing scheme based on CPU GPU architecture. The basic process of real-time signal processing of HF ground wave radar is realized, and the distance information and velocity information of target are obtained. The experimental results show that the proposed signal processing scheme based on CPU GPU architecture has a speedup ratio of more than 10 times compared with the CPU (CPU) computing platform, which verifies the feasibility of the scheme.
【作者单位】：中国海洋大学工程学院;
【基金】：海洋公益性行业科研专项项目(201505002) 国家自然科学基金重点项目(61132005)资助~~
【分类号】：TN958

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