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| 基于图像旋转匹配的组网雷达ISAR图像横向定标 | |
| 引用本文： | 张凌晓,王宝顺,贺思三.基于图像旋转匹配的组网雷达ISAR图像横向定标[J].计算机工程与科学,2015,37(4):796-801. |
| 作者姓名： | 张凌晓 王宝顺 贺思三 |
| 作者单位： | 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 |
| 基金项目： | 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) |
| 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 |
| 收稿时间： | 2013-09-29 |
| 修稿时间： | 2014-04-14 |
Cross-range scaling for net-worked radar ISAR based on image rotation matching |
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| ZHANG Ling-xiao , WANG Bao-shun , HE Si-san.Cross-range scaling for net-worked radar ISAR based on image rotation matching[J].Computer Engineering & Science,2015,37(4):796-801. | |
| Authors: | ZHANG Ling-xiao WANG Bao-shun HE Si-san |
| Affiliation: | (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） |
| 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: |
| Keywords: | net-worked radar ISAR image cross-range scaling |
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