An Auto-Focus Algorithm for Missile-Borne SAR

摘要：

Compared with an air-borne SAR,a missile-borneSAR has three important characteristics including a high flightspeed,a straight movement with non-constant velocity and alarge squint angle.In several SAR imaging algorithms ofspotlight mode,approximately compensating of rangemigratory results to bad imaging.In this paper,according tothe imaging characteristics of missile-borne spotlight SAR fora ground target,we use the phase gradient algorithm to carryout the phase error correction.This new approach can improvethe image quality obviously and make the auto-focusprocessing converge better.The simulation results show thevalidity of the proposed method.

作者: Qinyan Tan Yaoliang Song

作者单位: School of Electronic Engineering & Optoelectronic Technology,Nanjing University of Science & Technology,Nanjing 210094,China

会议类型: 国际会议

会议名称: 2008 China-Japan Joint Microwave Conference(2008年中日微波会议)

会议地点: 上海

会议语种:英文

页码: 253-257

在线出版日期: 2008-09-10（万方平台首次上网日期，不代表论文的发表时间）