摘要
随着现代通信抗干扰能力需求的增加,对混合扩频系统的研究越来越深入,而高速跳频系统的实现,则适应了当前无线通信对强抗干扰能力的需求。本文设计并实现了一种适用于高速跳频的DS/FH混合扩频系统下的跳频捕获和直扩伪码捕获方法,并采用了具有鲁棒性的非相干数据解调技术,完成了系统的FPGA实现和调试。实际测试表明,系统能够实现在一定的扩频增益和20000hop/s的跳频速率下,传输速率大于19.6kbit/s,满足工程需要。
With the demand of anti-jamming capability in modern communications,the study of hybrid spread spectrum system is much deeper.The realization of high-speed frequency hopping system is adapted to the current wireless communication in the needs of a strong anti-jamming ability.The paper gives an implementation of FH capture and DS capture under high-speed FH,adopts a robust non-coherent data demodulation,completes hardware implementation and debugging of the system.Test shows that the system at a transmission on data rate greater than 19.6kbps in 20000hops/s,could meet the engineering application requirments.
出处
《微计算机信息》
2012年第9期334-336,共3页
Control & Automation
