DS/CDMA通信中匹配滤波器的FPGA设计

FPGA Design of Matched Filter in DS/CDMA Communication

匹配滤波器因具有大的时间带宽积而在扩频和 CDMA通信中受到极大重视 ,不仅作为快速捕获和 RAKE分集等传统技术的最佳方案 ,而且在多用户检测、智能天线、多速率甚至是软切换等方面也都能发挥其优势 ;对匹配滤波器捕获的基本原理进行了研究并着重讨论了其多种 FPGA实现结构。

Due to their large timebandwidth product ,matched filter has been attracting in a lot of interests in spread spectrum and CDMA communications . Since their concept was presented ,matched filters not only act as the best candidate for constructing rapid acquisition and RAKE diversity schemes,but also are of great advantage to multi _user detection, adaptive,antenna array,multi _rate detection,etc.This paper analysis the principle of matched filter and pay more attention to its implement structure of FPGA.