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文中将循环谱理论应用于BPSK扩频信号抗干扰处理,提出了一种基于循环平稳模型的窄带干扰抑制算法。与以往基于信号的随机平稳模型相比,能更好地反映出扩频信号的循环平稳本质,取得更多的有用信息。仿真结果表明,该算法能有效地提高扩频通信系统抗干扰性能.
In this paper, the theory of cyclic spectrum is applied to anti-jamming of BPSK spread spectrum signal. A narrowband interference suppression algorithm based on cyclic smoothing model is proposed. Compared with the previous signal-based stochastic stationary model, it can better reflect the cyclostationary nature of the spread spectrum signal and obtain more useful information. Simulation results show that this algorithm can effectively improve the anti-jamming performance of spread spectrum communication system.