一种基于匹配信号变换的有效抗干扰算法

针对直接序列扩频（direct sequence spread-spectrum, DSSS）系统中可能出现的chirp-like干扰，提出了一种有效的基于匹配信号变换（matched signal transform, MST）的干扰抑制算法--峰值保留法。该算法是根据已有的MST快速实现方案和陷波滤波抗干扰算法而设计的。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，该算法具有稳健性强、计算量小、误码性能好、实现更为简单等优点，具有较好的应用前景。

Effective algorithm of interference suppression based on matched signal transforms

Aiming at the chirp-like interference that may appear in the direct sequence spread-spectrum (DSSS) system, an effective algorithm of interference suppression based on matched signal transform (MST) is presented, which is the peek-value holding algorithm. This algorithm is developed according to the fast scheme of MST as well as the masking anti-jamming algorithm. The simulation results indicate that this algorithm can effectively suppress linear or non-linear chirp-like interference in DSSS system. Compared with some other anti-jamming algorithms, the proposed algorithm predominates in bit-error rate, robustness, calculation complicacy and implementation, so it has a wide application prospect.