| 高频雷达中LFMCW信号的分析 |
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| 引用本文： | 冀振元,孟宪德,王吉滨. 高频雷达中LFMCW信号的分析[J]. 系统工程与电子技术, 1999, 21(12): 14-16 |
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| 作者姓名： | 冀振元 孟宪德 王吉滨 |
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| 作者单位： | 哈尔滨工业大学电子与通信工程系,150001 |
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| 摘 要： | 高频雷达在现代战争和民用事业上发挥着越来越重要的作用 ,线性调频连续波 ( L FMCW)信号是高频雷达常采用的信号形式。就 L FMCW信号在高频雷达中的应用作了具体分析 ,并导出了其差频相位的具体表达式 ,它表现出了要检测的各量的物理意义 ,对检测的方法提供了理论依据。在此基础上 ,利用二维 FFT处理技术对目标回波信号的信息提取进行了仿真 ,并对仿真结果进行了分析
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| 关 键 词： | 线性调频信号 多普勒频率 信号分析 模拟 |
| 修稿时间： | 1998-11-29 |
Analysis of LFMCW Signal in HF Radar |
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| Ji Zhenyuan,Meng Xiande,Wang Jibin. Analysis of LFMCW Signal in HF Radar[J]. System Engineering and Electronics, 1999, 21(12): 14-16 |
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| Authors: | Ji Zhenyuan Meng Xiande Wang Jibin |
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| Abstract: | HF radar is playing a more and more important role in modern wars and civil projects.LFMCW signal is usually used by HF radar.This paper analyzes the LFMCW signal used in HF radar,then deduces the expression of its beat frequency phase which indicates physics meanings of quantities to be detected,and it supplies theoretical bases for detection methods.Based on these analyses,the information extraction of target echoes is imitated by using two|dimensional FFT technique,then the result is analyzed. |
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| Keywords: | HF radar LFMCW signal Doppler frequency Two|dimensional FFT |
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