阵列互耦对极化敏感阵列滤波性能的影响

The Effect of Array Mutual Coupling on Filtering Performance of Polarization Sensitive Array

在阵列互耦条件下,给出了极化敏感阵列接收信号模型;并在形式上把互耦误差分解为正交阵元接收因子误差和阵列接收因子误差,分别代表了阵列接收信号极化信息误差和空间信息误差.给出互耦条件下,信号、干扰空间匹配系数、极化匹配系数和最大SINR的数学表达式.在单干扰源情况下,分析了阵列互耦对极化敏感阵列滤波性能的影响.

The received signal model of polarization sensitive array is presented under array mutual-coupling condition, then mutual coupling error is decomposed of orthogonal-array-element- factor-error and array-factor-error, which represent signal polarizational information error and spatial information error respectively. Under array mutual-coupling condition, we give the mathematical expressions of some important filtering parameters, such as spatial matching coefficient, polarizational matching coefficient, and the maximum SINR. Then under condition of one interference source,effect of array mutual coupling on filtering performance of polarization sensitive array is analyzed.