扩频通信系统中一种消除干扰的编码捕获方法

An anti-jamming scheme of code acquisition in spread spectrum communication systems

针对恶劣环境下干扰信号影响捕获系统性能的问题,提出了一种消除强干扰的捕获方法,该方法利用奇异值分解技术,对接收信号进行分解、重构,以消除干扰,然后将处理后的信号送入捕获系统中进行编码捕获。理论分析与仿真实验均表明:该方法能够很好地消除干扰信号,有效地改善系统的捕获性能,提高系统的稳定性。

In order to avoid the influence of jamming signal on the performance of acquisition system, this paper proposes a new scheme of code acquisition, which is based on singular value decomposition that decomposes and reconstructs the received signal to suppress jamming, after this process, the signal enters acquisition system. The theoretical analysis and simulation results show that the method is capable of suppressing jamming, improving acquisition performance and stability of system.