2.4GHz无线电波的相位干涉测向研究  

Research of the Direction Finding by Using Phase Interference Based on 2.4GHz Radio Waves

作　　者：王聪[1] 邱选兵[1] 魏计林[1] 

机构地区：[1]太原科技大学物理系,山西太原030024

出　　处：《测试技术学报》2011年第4期305-307,共3页Journal of Test and Measurement Technology

基　　金：研究生优秀创新项目(20093105)

摘　　要：讨论了利用相位差测量2.4 GHz入射电磁波方位角和仰角的方法.在理想情况下分别对接收天线为三元阵和五元阵时对测向系统进行仿真,针对其测向精度比较二者的优劣性.对于五元阵接收到的信号所具有的"相位模糊"问题,采用"虚拟基线法"解相位模糊,提高测向精度.The principles of using phase difference to measure the azimuth and elevation of the 2.4 GHz in-coming waves were discussed. Under the ideal circumstances, the simulation of the direction finding system were done respectively while the receiving antenna is ternary array and five element array, and determined which was better in view of direction finding accuracy. And the phase ambiguity, which existed for the signal received by the five element array, was removed by using ＂the virtual baseline method＂, to improve the direc- tion findinR accuracy.

关 键 词：基线相位差 测向天线 解相位模糊 测向精度 

分 类 号：TM930.126[电气工程—电力电子与电力传动]