| 高速目标的相位编码步进频率信号分析 |
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| 引用本文： | 赵彬,刘长羽,权太范,许荣庆.高速目标的相位编码步进频率信号分析[J].系统工程与电子技术,2005,27(2):284-287. |
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| 作者姓名： | 赵彬 刘长羽 权太范 许荣庆 |
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| 作者单位： | 哈尔滨工业大学电子工程技术研究所,黑龙江,哈尔滨,150001 |
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| 摘 要： | 首先分析用步进频率雷达信号实现高分辨率的优缺点,给出了利用相位调制子脉冲来提高性能的相位编码步进频率信号形式;然后分析了其信号处理过程。与步进频率信号在高速目标下成像失真相比,相位编码步进频率信号的多普勒性能有很明显改善。同时,结合相位编码步进频率信号形式提出在高速目标情况下实现精确速度测量的两步估计方法。
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| 关 键 词： | 相位编码步进频率 一维距离像 速度估计 |
| 文章编号： | 1001-506X(2005)02-0284-04 |
| 修稿时间： | 2004年4月15日 |
Phase-coded stepped-frequency signal analysis for high moving targets |
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| ZHAO Bin,LIU Chang-yu,QUAN Tai-fan,XU Rong-qing.Phase-coded stepped-frequency signal analysis for high moving targets[J].System Engineering and Electronics,2005,27(2):284-287. |
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| Authors: | ZHAO Bin LIU Chang-yu QUAN Tai-fan XU Rong-qing |
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| Abstract: | Based on the advantage and shortage in stepped-frequency radar signal implementing high range resolution, phase-coded stepped-frequency (PCSF) signal utilizes phase modulation in the subpulses to better signal performance. Then the signal processing is analyzed. Compared with the range profile distortion produced by SF signal in the presence of high moving targets, PCSF signal Doppler performance is obviously improved. Simultaneously, the method implementing precise velocity estimation in two steps associative with PCSF signal characteristic under high moving targets is presented. |
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| Keywords: | phase-coded stepped-frequency 1-D range profile velocity estimation |
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