一种基于CoSaMP的双基地ISAR稀疏孔径机动目标成像方法  

A CoSaMP Based Bistatic ISAR Sparse Aperture Imaging Method for Maneuvering Target

作　　者：胡文华 朱瀚神 郭宝锋 薛东方 朱常安 Hu Wenhua;Zhu Hanshen;Guo Baofeng;Xue Dongfang;Zhu Chang’an(Department of Electronic and Optical Engineering,Shijiazhuang Campus of Army Engineering University of PLA,Shijiazhuang 050003,China)

机构地区：[1]陆军工程大学石家庄校区电子与光学工程系,石家庄050003

出　　处：《兵工自动化》2022年第9期72-75,共4页Ordnance Industry Automation

基　　金：河北省自然科学基金(F2019506031);陆军工程大学基础前沿科技创新项目(YSZJQZL2020)。

摘　　要：针对双基地逆合成孔径雷达稀疏孔径条件下对机动目标成像会发生散焦的问题,通过建立包含旋转角加速度与旋转初速度的比值γ和双基地时变角度的符合目标回波特性的稀疏基,结合CoSaMP算法对稀疏孔径信号进行机动目标的求解成像,仿真验证了算法的有效性。Aiming at the defocusing problem of bistatic inverse synthetic aperture radar(ISAR)for maneuvering target imaging under the condition of sparse aperture,a sparse basis which co ntains the ratio of rotation angular acceleration to initial rotation velocity and bistatic time-varying angle and meets the characteristics of target echo is established,and the CoSaMP algorithm is combined to solve the maneuvering target imaging of spar se aperture signals.Simulation results show the effectiveness of the proposed algorithm.

关 键 词：双基地逆合成孔径雷达 机动目标 稀疏孔径 压缩感知 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]