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文中研究了自适应非线性滤波在直扩通信中抑制窄带干扰的应用,采用修正LMS(MLMS)自适应滤波算法对窄带干扰进行抑制,并运用ACM滤波非线性函数进行非线性处理,使滤波性能明显改善。最后用MATLAB仿真自适应滤波过程,验证了算法的滤波性能。
The application of adaptive nonlinear filtering to suppress narrow-band interference in DSSS communication is studied in this paper. The adaptive LMS (MLMS) adaptive filtering algorithm is adopted to suppress the narrow-band interference, and the non-linear processing is performed using ACM filter nonlinear function to make the filtering performance Significant improvement. Finally, MATLAB simulation of adaptive filtering process, verify the algorithm of filtering performance.