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针对直接序列扩频系统(DSSS)中可能出现的chirp-like干扰,提出了一种有效的基于匹配信号变换(MST)的干扰抑制算法——干扰重构算法。该算法应用已有的MST快速实现方案设计而成。仿真结果表明,该算法能够有效抑制DSSS系统中线性、非线性chirp-like干扰。与其他一些抗干扰算法的仿真比较表明,该算法具有误码性能好、稳健性强、计算量小、实现更为简单等优点,具有良好的应用前景。
Aiming at the possible chirp-like interference in direct sequence spread spectrum system (DSSS), an effective interference suppression algorithm based on matched signal transform (MST) is proposed. The algorithm is based on the existing MST fast implementation scheme. The simulation results show that the proposed algorithm can effectively suppress linear and nonlinear chirp-like interference in DSSS system. Compared with other anti-jamming algorithms, the simulation results show that this algorithm has the advantages of good error performance, strong robustness, small amount of calculation and simpler implementation, and has a good application prospect.