通道失配对极化敏感阵列滤波性能的影响  

Effects of Channel Mismatch on Filtering Performance of Polarization Sensitive Array

作　　者：刘勇[1] 徐振海[1] 肖顺平[1] 

机构地区：[1]国防科技大学电子科学与工程学院,长沙410073

出　　处：《现代雷达》2007年第10期23-27,共5页Modern Radar

摘　　要：在极化敏感阵列通道失配条件下,建立了极化敏感阵列接收信号误差模型。把通道失配误差分解为阵元极化信息误差和阵列孔径信息误差,给出误差量明确物理解释。在单干扰源情况下,分析了通道失配对极化敏感阵列滤波性能的影响,并给出通道失配条件下,期望信号和干扰信号间的空间匹配系数、极化匹配系数和最大SINR表达式,最后,通过计算机仿真验证了文中结果,并给出有意义的结论。The received signal model of polarization sensitive array is established, under channel mismatching condition. The errors are decomposed of element factor errors and array factor errors, which represent signal polarizational information error and spatial information error respectively. This decomposition gives a proper explanation of channel mismatching errors. The effect on filtering performance of polarization sensitive array is analyzed, under only one interference, then mathematical expressions of the spatial matching coefficient, polarizational coefficient between desired signal and interference, and maximum SINR are ontlined. At last, the results obtained are simulated, and some useful results are given.

关 键 词：通道失配 幅相误差 极化敏感阵列 信号干扰噪声比 

分 类 号：TN713[电子电信—电路与系统]