通道失配条件下的阵列性能  

Performance of Array with Presence of Channel Mismatching

作　　者：李平[1] 史小卫[1] 陈蕾[1] 李蕊[1] 

机构地区：[1]西安电子科技大学电子工程学院,西安710071

出　　处：《微波学报》2007年第3期31-34,38,共5页Journal of Microwaves

摘　　要：针对通道失配对阵列辐射性能的影响这一问题,应用矩量法进行计算和仿真,分析其对无耦合及有耦合阵列辐射最大增益方向的增益与方向的影响,发现失配通道的幅度不一致性小于2dB、失配通道的相位不一致性小于30°时,相位不一致性与最大增益的方差及最大增益方向的方差都近似为线性关系。仿真结果及结论可作为设计允许的最大误差量的参考。A research of the effects in the presence of channel mismatching on the performance of the array is proposed in this paper. An analysis of the effect on the gain and direction for the maximal gain of the mismatching channel is conducted with MOM for the arrays both with and without coupling. An approximately linear relation is found between sensor phase perturbations and the warp of the average absolute value of the maximal gain or of the direction, with the sensor gain and phase perturbations less than 2dB and 30 degree correspondingly. The conclusion and the simulation result can be a reference for the maximal errors allowed in some designs.

关 键 词：通道失配 相位不一致性 阵列 耦合 

分 类 号：TN820.15[电子电信—信息与通信工程]