| 改进的逆合成孔径雷达成像包络对齐方法 |
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| 引用本文： | 杨国军,贺志毅. 改进的逆合成孔径雷达成像包络对齐方法[J]. 系统工程与电子技术, 2012, 34(3): 482-487. DOI: 10.3969/j.issn.1001-506X.2012.03.10 |
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| 作者姓名： | 杨国军 贺志毅 |
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| 作者单位： | 1. 北京遥感设备研究所, 北京 100854; 2. 中国人民解放军95948部队， 甘肃 酒泉 732750 |
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| 摘 要： | 准确的包络对齐是逆合成孔径雷达成像的基础。提出了一种适合工程应用的包络对齐方法，通过对相邻分组脉冲累积互相关系数的监测，实时调整窗函数的长度，消除了包络对齐中的漂移误差和“毛刺”现象，并通过竞争选择基准脉冲的起始位置，保证了算法的稳健性。仿真和试验数据的成像结果表明包络对齐结果的精度满足成像的要求。
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| 关 键 词： | 逆合成孔径雷达成像 包络对齐 累积互相关 窗函数 |
Improvement of the range alignment for ISAR imaging |
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| YANG Guo-jun,HE Zhi-yi. Improvement of the range alignment for ISAR imaging[J]. System Engineering and Electronics, 2012, 34(3): 482-487. DOI: 10.3969/j.issn.1001-506X.2012.03.10 |
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| Authors: | YANG Guo-jun HE Zhi-yi |
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| Affiliation: | 1. Beijing Institute of Remote Sensing Equipment, Beijing 100854, China;2. Unit 95948 of the PLA, Jiuquan 732750, China |
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| Abstract: | Accurate range alignment is the foundation of inverse synthetic aperture radar(ISAR) imaging.A method for the range alignment suitable to engineering application is presented.By survey correlation of each grouping pulse,the length of the window function is adjusted,so the drift error and burr are eliminated.The starting place is selected by competition,thus the steadiness of the algorithm is ensured.Firally,the processing of simulated and real data shows that the proposed method can meet the requirements of the imaging. |
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| Keywords: | inverse synthetic aperture radar(ISAR) imaging range alignment accumulative correlation window function |
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