摘要
随着对雷达系统的跟踪及定位性能要求的提高，在某些情况下，仅靠方向图主瓣波束的幅度特性来搜索定位已不能满足精度要求，必须以天线的相位中心为参考基准才能进行精确的定位和测量。因此，实现天线相位中心的精确测量成为现在微波天线测量领域一个亟需解决的重要问题。文章首先以天线相位中心测量时的实际情况入手，从理论上分析了天线相位中心测量时的主要误差来源，然后以大量的实际测试经验为基础，总结出了提高天线相位中心测量精度的一般方法。
Along with the increase in requirements of tracking and locating of radar system, in some cases, the amplitude property of main radiation lobe pattern alone failed to meet the accuracy demands. The accurate locating and measurement can be made by using antenna phase center as a reference. Therefore the important problem of realizing the accuracy measurement of antenna phase center cries for solution in the field of microwave antenna measurement. Firstly, based on the realities, the main error source is analyzed in theory when antenna phase center is used for measurement, and then the general method of improving the measurement accuracy of antenna phase center on the basis of considerable practical experience is summarized.
出处
《电光系统》
2014年第4期43-46,共4页
Electronic and Electro-optical Systems
关键词
天线
相位中心
方向图
精确测量
Antenna
Phase Center
Radiation Pattern
Accurate Measurement
