| 强地杂波背景下线性调频信号雷达微多普勒提取新方法 |
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| 引用本文： | 李开明,李宏静,张群,罗迎. 强地杂波背景下线性调频信号雷达微多普勒提取新方法[J]. 电光与控制, 2010, 17(2) |
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| 作者姓名： | 李开明 李宏静 张群 罗迎 |
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| 作者单位： | 空军工程大学电讯工程学院,西安,710077;西南大学地理科学学院,重庆,400715;空军工程大学电讯工程学院,西安,710077;复旦大学波散射与遥感信息国家教育部重点实验室,上海,200433 |
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| 基金项目： | 国家自然科学基金项目(60672032);;陕西省自然科学基础研究计划项目(2007F28) |
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| 摘 要： | 在线性调频信号体制下,针对强地杂波背景下含旋转部件目标ISAR成像问题,提出一种微多普勒信息提取新方法。首先在信号域使用相消技术剔除地杂波,拉伸处理后将相消原理应用于谱图域,从而有效实现了微多普勒信息的分离与提取,并得到了目标较为清晰的ISAR像,通过对3种地物杂波的仿真,验证了其可行性。
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| 关 键 词： | 目标识别 雷达信号处理 地杂波 相消技术 谱图域 微多普勒 |
A New Method for Information Extraction of Micro-Doppler in Strong Ground Clutter with Chirp Signal |
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| LI Kaiming,LI Hongiing,ZHANG Qun,LUO Ying. A New Method for Information Extraction of Micro-Doppler in Strong Ground Clutter with Chirp Signal[J]. Electronics Optics & Control, 2010, 17(2) |
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| Authors: | LI Kaiming LI Hongiing ZHANG Qun LUO Ying |
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| Affiliation: | 1.Institute of Telecommunication Engineering;AFEU;Xi'an 710077;China;2.College of Geographical Science;Southwest University;Chongqing 400715;3.Key Laboratory of Wave Scattering and Remote Sensing Information;Fudan University;Shanghai 200433;China |
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| Abstract: | Under chirp radar,in order to solve the imaging problem of a target with rotating parts in strong ground clutter,a new method for extracting micro-Doppler information was proposed.We applied cancellation technique in time domain to eliminate ground clutter,and transplanted the cancellation principle into spectrogram,which could effectively achieve the extraction and separation of micro-Doppler.Thus a clearer ISAR image of the target was obtained.The feasibility of the method was proved by the simulation to ... |
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| Keywords: | target recognition radar signal processing ground clutter cancellation technique spectrogram micro-Doppler |
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