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.
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)
关键词
基线相位差
测向天线
解相位模糊
测向精度
phase difference of baseline
direction-finding antenna
removing ot the phase ambiguity
direc-tion finding accuracy
