改进的干涉式天线阵及其测向误差分析  

An Improved Analyses on Interferometer Antenna Array and Errors of Direction-Finding

作　　者：贺庆[1] 刘元安[1] 黎淑兰[1] 于翠屏[1] 

机构地区：[1]北京邮电大学电子工程学院,北京100876

出　　处：《北京邮电大学学报》2011年第6期121-124,共4页Journal of Beijing University of Posts and Telecommunications

基　　金：国家科技重大专项项目(2009ZX03005-002-02;2010ZX03007-003-04);国家自然科学基金项目(61001060;60873190;60973111);广东省产学研项目(2009B090300105)

摘　　要：为了解决干涉式测向机中天线阵孔径与准确度之间的矛盾,提出了一种新型天线阵和基于该天线阵的测向方法.该天线阵基于十字形正交四元阵,通过在阵中心增加1个基准天线,可使天线阵孔径增大,从而减少随机干扰的影响.基于新天线阵的补偿方法,理论上可以完全抵消整个测向机的系统误差.通过模拟真实信号进行仿真,验证了该方法的优势和可行性.For solving the contradiction between aperture size and accuracy in the interferometer direction-finding machine, a novel antenna array and its direction-finding approach are proposed. The array is based on the cross four-element antenna array. By placing a reference antenna in the center of the array, the aperture size can be enlarged so that the influence of random noise will be reduced. The corresponding compensate method can counteract system errors of the whole direction-finding machine in theory. The advantage and feasibility of the new approach are demonstrated by matlab software based simulations.

关 键 词：相关干涉式 测向算法 天线阵 补偿算法 系统误差 

分 类 号：TM92[电气工程—电力电子与电力传动]