一种寻找紧缩场内干扰源的简单方法  

A simple method for seeking extraneous source of compact antenna test range

作　　者：马永光[1] 何国瑜[1] 

机构地区：[1]北京航空航天大学电子信息工程学院,北京100083

出　　处：《电波科学学报》2008年第4期674-677,共4页Chinese Journal of Radio Science

摘　　要：紧缩场是进行天线参数测试及目标散射特性测试的场地,其性能影响着目标测量的精度和可靠性。为提高紧缩场的性能,在使用紧缩场前,必须寻找紧缩场内可能存在的对目标测试区产生扰动的干扰源,尽量排除或抑制这些干扰源。基于一维距离成像原理,用画两个椭球面相交和两个球面相交的方法,分别找出紧缩场内存在的影响天线测量和目标雷达散射截面测量的干扰源,采取措施控制这些干扰源对测量的影响。给出了理论仿真计算结果及实验结果,并作了对比分析,验证了此寻找方法既简单又有效。Compact Antenna Test Range（CATR） has become an ideal place for testing of antenna parameter and measurements of target scattering properties. The CATR performance greatly influences the accuracy and reliability of target measurements. In order to improve CATR performance, the extraneous source that disturbs target testing area in CATR must be found before make use of CATR. Any possible extraneous waves will be removed or be under control. Based on the principle of one dimensional range profiles, extraneous source that impact the measurement of antenna and target radar cross section（RCS） in CATR ia analyzed by drawing two intersected ellipse surface and two intersected spherical surface,, and the necessary controlling measures are discussed for extraneous source. The comparison and analysis of the theory simulation computing results and experimental resuits indicate that this method is simple and effective.

关 键 词：紧缩场 干扰源 一维距离成像 天线 雷达散射截面 

分 类 号：TN911[电子电信—通信与信息系统]