基于图像旋转匹配的组网雷达ISAR图像横向定标

J4 ›› 2015, Vol. 37 ›› Issue (04): 796-801.

基于图像旋转匹配的组网雷达ISAR图像横向定标

张凌晓1，王宝顺2，贺思三3

（1.南阳理工学院计算机与信息工程学院,河南南阳 473004;2.69046部队，新疆乌鲁木齐 830001;
3.空军工程大学防空反导学院，陕西西安 710051)

收稿日期:2013-09-29 修回日期:2014-04-14 出版日期:2015-04-25 发布日期:2015-04-25
基金资助:
国家自然科学基金资助项目（61372166）；河南省科技攻关资助项目(122102210563,132102210215)

Cross-range scaling for net-worked radar ISAR
based on image rotation matching

ZHANG Lingxiao1,WANG Baoshun2,HE Sisan3

(1.School of Computer and Information Engineering,Nanyang Institute of Technology,Nanyang 473004;
2.Troop 69046,Urumqi 830001;
3.Institute of Aerial Defence and Antimissile,Air Force Engineering University,Xi’an 710051,China）

Received:2013-09-29 Revised:2014-04-14 Online:2015-04-25 Published:2015-04-25

摘要/Abstract

摘要：

基于组网雷达观测模型，分析了在多部雷达同时观测条件下所得ISAR图像之间的对应关系，提出了一种基于图像旋转匹配的转角估计办法，通过对旋转速度的一维搜索实现了目标角速度的估计。仿真结果表明，本算法能基于组网雷达所获得的多幅ISAR图像实现目标转角的稳健估计，实现ISAR图像横向定标。所提算法可对慢运动目标或平动补偿后的回波信号进行处理，适用于不同带宽、不同中心频率的宽带雷达组网形式。

关键词: 组网雷达, ISAR图像, 横向定标

Abstract:

Based on the net-worked radar observation model,we analyze the relationship between the ISAR images obtained simultaneously by different radars.We also propose a rotation velocity estimation algorithm based on image rotation and matching,and realize the target palstance estimation by one-dimensional search of rotation velocity.Simulation results show that the proposed algorithm can estimate the rotation velocity robustly based on the multi-radar images and the cross-range scaling can be achieved.The proposed algorithm can deal with the radar echoes for slowly moving targets and translation compensated targets,and fits for wide-band net worked radars of different center frequency and different bandwidth.Key words:

Key words: net-worked radar;ISAR image;cross-range scaling

张凌晓1，王宝顺2，贺思三3. 基于图像旋转匹配的组网雷达ISAR图像横向定标[J]. J4, 2015, 37(04): 796-801.

ZHANG Lingxiao1,WANG Baoshun2,HE Sisan3. Cross-range scaling for net-worked radar ISAR
based on image rotation matching [J]. J4, 2015, 37(04): 796-801.