直扩系统的自适应窄带干扰抑制技术研究及实现

摘要

直接序列扩频通信系统因具有很强的抗干扰能力而受到广泛关注，但存在强窄带干扰或多窄带干扰信号的情况下，其系统性能会急剧下降。为此，提出一种适合于强干扰应用环境的自适应窄带干扰抑制算法，并分析和研究适用于直接序列扩频通信系统的抗干扰措施。仿真和实现结果表明，采用自适应窄带干扰抑制技术极大地抑制了外界干扰对传输信号的影响。%Direct sequence spread spectrum communication has drawn wide attention because of the great ability of anti‐interface .However ,the strong and multiple narrow‐band interference signal will cause the system performance degradation . In this paper ,an adaptive narrow‐band interference suppression algorithm in strong interference environment is proposed . The simulation results show that the algorithm can suppress the interference to the signals effectively .