谱方法结合小波矩量法校正自适应阵列天线互耦效应

Compensation of the Effects of Mutual Coupling on the Performance of Adaptive Arrays by Using Wavelet-MoM and Spectral Method

提出一种有效的校正自适应天线单元互耦的混合算法 ,即采用小波矩量法快速计算自适应处理器包含单元互耦作用的实际输入信号 ,然后基于系统最大接收信号干扰噪声比准则 ,采用谱方法求解校正互耦的最佳权矢量 ,实现对干扰信号的抑制。以直线阵为例 ,数值模拟了校正互耦后的自适应波束图 ,说明该方法的校正效果。

An effective hybrid method for compensation the effect of mutual coupling on the performance of adaptive arrays is proposed. By using the wavelet transformation and the method of moments, the signal input to the adaptive processor with mutual coupling taken into account is computed fast. In accordance with the maximum ratio of signal to interference and noise, the expression for the weight that compensates the mutual coupling is given through the spectral method. Finally, the adaptive beam of a linear array with mutual coupling compensated is simulated, which shows the validity of this method.\;