| 基于非均匀采样谱分析的多普勒解模糊处理 |
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| 引用本文： | 田继华,孙进平,王彦平,毛士艺.基于非均匀采样谱分析的多普勒解模糊处理[J].系统工程与电子技术,2011,33(2):282-285. |
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| 作者姓名： | 田继华 孙进平 王彦平 毛士艺 |
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| 作者单位： | 1. 北京航空航天大学电子信息工程学院， 北京 100191； 2. 中国科学院电子学研究所微波成像技术国家重点实验室， 北京 100190 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)基金(2010CB731903); 国家自然科学基金(61072112)资助课题 |
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| 摘 要： | 针对低脉冲重复频率（pulse repetition frequency, PRF）脉冲多普勒雷达的多普勒解模糊问题，提出了一种基于非均匀采样谱分析的多普勒解模糊处理方法。通过利用多重PRF方式下相参处理间隔内采样数据的时域非均匀特性，算法采用一种改进的复值迭代自适应方法直接估计无模糊多普勒谱的幅度响应，可实现PRF分组参差方式下对多个目标的解多普勒模糊处理。仿真结果验证了算法的有效性。
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| 关 键 词： | 脉冲多普勒雷达 解模糊 非均匀采样 谱分析 |
Doppler ambiguity resolution with spectral analysis of nonuniformly sampled data |
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| TIAN Ji-hua,SUN Jin-ping,WANG Yan-ping,MAO Shi-yi.Doppler ambiguity resolution with spectral analysis of nonuniformly sampled data[J].System Engineering and Electronics,2011,33(2):282-285. |
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| Authors: | TIAN Ji-hua SUN Jin-ping WANG Yan-ping MAO Shi-yi |
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| Institution: | 1. School of Electronics and Information Engineering, Beihang University, Beijing 100191, China; 2. National Key Lab of MW Imaging Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | For Doppler ambiguity resolution of pulse Doppler(PD) radar with low pulse repetition frequency(PRF),a Doppler ambiguity resolution method with spectral analysis of nonuniformly sampled data is presented.By using the time domain characteristic of nonuniformly spaced data collected during the coherent processing interval(CPI) of multiple PRF systems,a new improved complex value iterative adaptive approach(CIAA) is adopted to directly estimate the response of Doppler spectrum without ambiguity.The algorithm i... |
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| Keywords: | pulse Doppler radar ambiguity resolution nonouniformly sampling spectral analysis |
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