| 高分辨距离像循环相关复合精确测速方法 |
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| 引用本文： | 李民,周共健,赵彬,权太范,毕波.高分辨距离像循环相关复合精确测速方法[J].系统工程与电子技术,2011,33(11):2359-2362. |
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| 作者姓名： | 李民 周共健 赵彬 权太范 毕波 |
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| 作者单位： | 1. 哈尔滨工业大学电子与信息工程学院, 黑龙江 哈尔滨 150001；
2. 北京遥感设备研究所毫米波系统技术研究重点实验室, 北京 100854 |
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| 基金项目： | 国家自然科学基金(60872101)资助课题 |
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| 摘 要： | 为解决目标径向速度对步进频率信号高分辨距离像的影响,以精确速度补偿为目的,设计了一种正负正步进跳频波形,以两帧正跳频脉冲序列和一帧负跳频脉冲序列作为一测速组。提出了一种高分辨距离像循环相关复合精确测速方法,通过粗细估值的复合得出速度精确估计值,并用于下一组脉冲序列的速度补偿。仿真结果表明该方法测速精度高,具有良好的抗噪声性能和抗目标机动性能,且运算量较小,适用于实时性要求较高的信号处理系统。
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| 关 键 词： | 步进频率信号 高分辨距离像 精确速度测量 循环相关 |
Velocity precise measurement using combination of circular correlation based on HRRP |
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| LI Min,ZHOU Gong-jian,ZHAO Bin,QUAN Tai-fan,BI Bo.Velocity precise measurement using combination of circular correlation based on HRRP[J].System Engineering and Electronics,2011,33(11):2359-2362. |
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| Authors: | LI Min ZHOU Gong-jian ZHAO Bin QUAN Tai-fan BI Bo |
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| Institution: | 1. School of Electronics Information Engineering, Harbin Institute of Technology, Harbin 150001, China;
2. National Key Laboratory of Millimeter Wave System, Beijing Institute of Remote Sensing Equipment, Beijing 100854, China |
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| Abstract: | To solve the distortion of high resolution range profile(HRRP) due to target's motion for step frequency signal,a positive-negative-positive style step frequency waveform is designed which is separated into groups constituted of two positive pulse trains and one negative pulse train.A corresponding velocity precise measurement method using combination of circular correlation of HRRP is presented,and the final precise velocity estimated value is identified by combining coarse velocity estimated value and pre... |
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| Keywords: | step frequency waveform high resolution range profile(HRRP) velocity precise measurement circular correlation |
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