火力与指挥控制2013，Vol.38Issue(3)：49-52,57,5.
双基地ISAR越距离单元徙动分析与校正方法
Study on Correction Method of Bistatic ISAR Migration Through Resolution Cell for Space Target
摘要
Abstract
In bistatic inverse synthetic aperture radar (ISAR) system, range-dimension of the target image is defocused by migration through resolution cell (MTRC) of target scatter. In order to solve the problem, MTRC correction method is researched. Intermediate frequency direct sampling is used in the system. Matching filter pulse compression with non -coherent bistatic ISAR imaging mechanism is adopted and space target is taken as research object. The factor causing MTRC in bistatic ISAR is analyzed in detail when bistatic angle is constant during imaging process. Then the correction method based on Keystone transformation is put forward. And the correction method is validated by space target with ideal scatters.关键词
双基地逆合成孔径雷达/越距离单元徙动/Keystone变换/中频直接采样Key words
bistatic ISAR,migration through resolution cell (MTRC),Keystone transformation, intermediate frequency direct sampling分类
信息技术与安全科学引用本文复制引用
韩宁,尚朝轩,何强,董健..双基地ISAR越距离单元徙动分析与校正方法[J].火力与指挥控制,2013,38(3):49-52,57,5.基金项目
国家"863"计划基金资助项目(2008AA0194) （2008AA0194）
