| 高分辨率步进频脉冲雷达二次速度补偿方法 |
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| 引用本文： | 胡秀娟,邓甲昊,周志峰,桑会平.高分辨率步进频脉冲雷达二次速度补偿方法[J].系统工程与电子技术,2009,31(7):1560-1563. |
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| 作者姓名： | 胡秀娟 邓甲昊 周志峰 桑会平 |
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| 作者单位： | 1. 上海工程技术大学机械工程学院, 上海, 201620;2. 北京理工大学机电学院, 北京, 100081;3. 中国电子科技集团54所, 河北, 石家庄, 050081 |
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| 基金项目： | 上海高校选拔培养优秀青年教师科研专项基金 |
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| 摘 要： | 分析了目标径向运动对步进频脉冲信号目标回波的影响。该运动的存在使目标回波波形失真,因此提出了二次速度补偿法估计速度参数。该方法在采样点较少的条件下,基于初步速度估计值,以补偿精度为速度搜索的步进量,从而缩小了二次补偿的速度搜索范围,满足了速度补偿的精度要求。计算机仿真结果及性能分析表明,该方法补偿精度高,对噪声的影响具有一定的稳健性,且计算量小,便于实时处理。
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| 关 键 词： | 雷达 信号处理 步进频脉冲信号 速度补偿 距离高分辨率 距离像 |
| 收稿时间： | 2008-03-18 |
| 修稿时间： | 2008-05-17 |
Quadric velocity compensation method for high resolution stepping frequency pulse radar |
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| HU Xiu-juan,DENG Jia-hao,ZHOU Zhi-feng,SANG Hui-ping.Quadric velocity compensation method for high resolution stepping frequency pulse radar[J].System Engineering and Electronics,2009,31(7):1560-1563. |
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| Authors: | HU Xiu-juan DENG Jia-hao ZHOU Zhi-feng SANG Hui-ping |
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| Institution: | 1. Coll. of Mechanical Engineering, Shanghai Univ. of Engineering Science, Shanghai 201620, China;2. School of Mechatronics Engineering, Beijing Inst. of Technology, Beijing 100081, China;3. No. 54 Inst., China Electronics Technology Group Corporation, Shijiazhuang 050081, China |
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| Abstract: | The effect of target radial motion on stepping frequency pulse signals is analyzed.The analytic result shows that the echo is distorted due to the motion.For solving this problem,the quadric velocity compensation method is advanced.Under the condition of few sample points,this method could reduce the searching range based on the preliminary velocity estimation value and compensation accuracy value.So the method is satisfied with the requirement of accuracy.The simulation results and performance analysis manifest the method possesses the stability and fewer computation load,and it is convenient for real-time processing. |
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