| 基于Matlab的步进频率波形与高分辨力距离像 |
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| 引用本文： | 周沿海,张勇. 基于Matlab的步进频率波形与高分辨力距离像[J]. 现代电子技术, 2007, 30(4): 75-77,85 |
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| 作者姓名： | 周沿海 张勇 |
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| 作者单位： | 北京航空航天大学,仪器与光电工程学院,北京,100083 |
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| 摘 要： | 频率步进信号是一种较常用的高距离分辨率雷达信号,常用于雷达的目标识别技术之中。首先简单介绍了一维距离像和步进频率信号,分析了步进频率雷达系统中成一维高分辨力距离像的成像原理,即采用离散傅里叶逆变换(ID-FT)信号处理方法实现距离高分辨。并通过Matlab仿真实现了各种具体情况的成像,指出了影响成像的各种因素,同时提出了相应的解决方法。
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| 关 键 词： | 步进频率信号 高分辨力距离像 离散傅里叶逆变换 Matlab仿真 |
| 文章编号： | 1004-373X（2007）04-075-03 |
| 收稿时间： | 2006-07-12 |
| 修稿时间： | 2006-07-12 |
Step Frequency Waveform and High Resolution Range Profiles Based on Matlab |
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| ZHOU Yanhai,ZHANG Yong. Step Frequency Waveform and High Resolution Range Profiles Based on Matlab[J]. Modern Electronic Technique, 2007, 30(4): 75-77,85 |
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| Authors: | ZHOU Yanhai ZHANG Yong |
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| Affiliation: | School of Instrument Science and Opto- electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing, 100083, China |
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| Abstract: | Step frequency signal is a radar signal with high range resolution,which is common used in target identification.In this paper,the one-dimensional range resolution and step frequency signal are introduced.The principles of high resolution range profiles of step frequency radar are analyzed which adopts the method of Inverse Discrete Fourier Transform(IDFT) signal process to get high range resolution.The actual profiles in all kinds of cases are achieved by the simulation of Matlab,at the same time points out several factors that affect range profiles,presents corresponding methods of resolution. |
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| Keywords: | step frequency signal high resolution range profiles inverse discrete Fourier transform simulation of Matlab |
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