多径条件下阵列天线相位关系分析  

Phase relation of antenna array under multipath channel condition

作　　者：高晓滨[1] 郝重阳[1] 

机构地区：[1]西北工业大学电子与信息工程研究所,陕西西安710072

出　　处：《电波科学学报》2005年第1期128-131,共4页Chinese Journal of Radio Science

摘　　要：针对多径条件下阵列天线阵元间的相位差,研究了散射体在发射台附近的 有直达路径、无直达路径以及远端强反射等传播方式下的相位关系计算模型,通过仿 真计算,分析了相位关系的统计特征。该计算模型可模拟多径环境下的矢量信道参 数,可用于通过相位信息进行到达方位测量的测向算法的研究。The influence of multipath effect on phase difference between antenna array elements is analyzed on the basis of the computation model of phase relation under three multipath conditions, that is scattering body surrounding the emitting platform with the direct path, without the direct path, and strong reflecting paths with a great distance. The computer simulation and the theoretical analysis on statistical character of phase relation are carried out. The model is suitable for simulating vector channel parameters in multipath case, which provides a reference for researching a new direction-finding algorithm for direction of arrival (DOA) by the use of phase parameters.

关 键 词：矢量信道 多径效应 相位模型 

分 类 号：TN92[电子电信—通信与信息系统]