用ICA方法消除无线通信与雷达信号中的多频混合噪声  

Multi-frequency Mixture Noise of Wireless Wave and Radar Signal Eliminated by ICA Method

作　　者：王卓[1] 王立志[1] 杨勇[1] 

机构地区：[1]空军工程大学理学院,陕西西安710051

出　　处：《现代电子技术》2010年第13期17-20,共4页Modern Electronics Technique

摘　　要：把ICA技术用于无线通信/雷达信号中消除多频混合噪声。分析了无线通信/雷达回波信号的特点,建立了期望信号和联合噪声信号混合模型和独立分量分析(ICA)模型,讨论了独立观测器的构成方法。用改进了的FastICA算法对此进行了仿真。结果表明,应用这种分离混合信号方法取得了良好的效果,可以获得几乎纯净的源信号,且放宽了各路信号的幅度比范围和信号类型的范围。该方法适用性强,抗干扰功能和性能佳,可以推广到其他相关信号处理中。The ICA technology is used to eliminate the multi-frequency mixture noise in wireless communication and radar signal. The characteristics of wireless communication and radar echo signal are analyzed, the mixture models combined expectation signal with the joint noise signal and the ICA model are built, the construction of independent observer is discussed, the improved FastlCA algorithm is simulated on above-mentioned. Results prove that a well effect and almost pure source signal can be acquired, and the range of amplitude ratio and signal types of each signal is enlarged by the mixture signals separation method. The method in the textual possesses has anti-jamming ability and it is can be applied to other related signal processing.

关 键 词：盲源分离 快速ICA算法 多频混合噪声 独立观测器 

分 类 号：TN95[电子电信—信号与信息处理]