步进线性调频信号舰船ISAR成像的实时信号处理  

Real-Time Data Process for ISAR Imaging of Ship Targets Using Stepped-Chirp Signal

作　　者：王虹现[1] 全英汇[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,西安710071

出　　处：《数据采集与处理》2010年第3期401-406,共6页Journal of Data Acquisition and Processing

基　　金：国家自然科学基金(60890072)重大资助项目

摘　　要：针对舰船目标的复杂运动特性以及采用步进线性调频信号给实时处理带来的困难,本文设计了以数字信号处理器作为处理单元数字信号处理板卡,选择了适于步进线性调频信号舰船逆合成孔径雷达(ISAR)成像实时处理的算法流程,并完成了实时处理在信号处理板卡上的任务分配和程序编写。该方法能够完成步进线性调频信号舰船目标ISAR成像的实时处理任务,外场试验的结果验证了本文方法的有效性。The imaging of ship targets is a hotspot in the technology research of inverse synthetic aperture radar（ISAR）.Aimed at the complexity of ship motion characteristics and the difficulty caused by using the stepped chirp signal,the digital signal process board is firstly designed based on digital signal processors.Then,the suitable algorithm is selected to realize the real-time data process for ISAR imaging of ship targets using stepped chirp signal.Finally,the task allocation and programming of the real-time signal process on the digital signal process board are completed.Experimental results confirm the validity of the approach.

关 键 词：步进线性调频 逆合成孔径雷达 实时 数字信号处理器 

分 类 号：TN957[电子电信—信号与信息处理]