双基地逆合成孔径雷达成像分析  

Analysis of ISAR imagery for bistatic radar

作　　者：高昭昭[1] 梁毅[1] 邢孟道[1] 张守宏[1] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点实验室,陕西西安710071

出　　处：《系统工程与电子技术》2009年第5期1055-1059,共5页Systems Engineering and Electronics

基　　金：国家自然科学基金(60502044);教育部重点项目(20051009)资助课题

摘　　要：在波数域对双基地逆合成孔径雷达(ISAR)模型进行分析。双基雷达ISAR的特殊性主要体现在双基地角和等效视线方位角这两个参数中。前者会影响径向波数的大小而后者会影响波数的方向。利用双基地角等值线将观测区域进行了分类。对各类区域内双基地角和等效视线方位角变化规律进行了讨论,从而可以确定各区域内的双基ISAR成像算法。仿真结果验证了分析的正确性。The model of bistatic inverse synthetic aperture radar （ISAR） is analyzed in wave-number domain. The characteristic of the bistatic ISAR is represented with two parameters, the bistatic angle and the azimuth angle of equivalent line of sight （LOS）, affecting the modul and direction of the radial wave-number respectively. The observation region is partitioned into different parts using the bistatic angle isoline. Then the variation of bistatic angle and azimuth angle of equivalent LOS is discussed in each part to determine corresponding bistatic ISAR imagery algorithm. Finally, some simulation results are given to prove the correctness of the analysis.

关 键 词：双基地雷达 逆合成孔径雷达 波数域 等双基地角线 

分 类 号：TN957[电子电信—信号与信息处理]