天线回转中心偏离阵列球心对测向的影响  

Impact of Equipment under Test(EUT) Antenna Rotating Center Deviating Antenna Array Centre on Direction-finding

作　　者：郑星 贺金龙 高军山 李芷 杨黎都 

机构地区：[1]解放军63880部队

出　　处：《电讯技术》2012年第7期1202-1205,共4页Telecommunication Engineering

摘　　要：在微波暗室内进行射频仿真试验时,必须保证被试装备天线回转中心和天线阵列的球心重合,否则就会引起测向误差,从而影响对被试装备性能的科学评估。分析了对心不准对装备测向测试结果的影响,建立了测向误差的分析模型,并且结合实例详细分析了偏心距离和测向误差的关系。相关分析模型和结论可以作为对心设备建设中对对心精度的指标论证的依据,也可以为仿真试验战情的设计提供科学的借鉴。RF simulation test in microwave anechoic chamber must ensure Equipment under Test（EUT） antenna rotating center and antenna army centre to be coincided, otherwise it will cause direction- finding（DF） error, thus affecting the scientific assessment of equipment performance. The influence of antenna rotating center devi- ating antenna array centre on equipment performance test results is analysed, a DF error analysis model is estab- lished and the relationship between eccentric distance and DF error is discussed through an example. This re- search work not only can be used as the basis of the center coincidence device in the construction of the preci- sion index demonstration, but also can provide scientific reference for simulation scenario design.

关 键 词：射频仿真试验系统 天线阵列 对心设备 测向误差 被试装备 

分 类 号：TN955[电子电信—信号与信息处理]