| 离散调频-傅里叶变换及其在雷达成像中的应用 |
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| 引用本文： | 王小宁,许家栋.离散调频-傅里叶变换及其在雷达成像中的应用[J].系统工程与电子技术,2002,24(3):14-15. |
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| 作者姓名： | 王小宁 许家栋 |
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| 作者单位： | 1. 西北大学,陕西,西安,710069;西北工业大学,陕西,西安,710072
2. 西北工业大学,陕西,西安,710072 |
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| 摘 要： | 介绍了离散调频 -傅里叶变换 (DCFT) ,提出了把离散调频 -傅里叶变换应用于雷达成像的思想 ,此方法可代替傅里叶变换进行多普勒处理 ,若目标回波中有二次相位 ,则可免去对目标回波中的二次相位的运动补偿 ,得到高分辨率的雷达成像。以仿真点目标为例对此方法与直接傅里叶变换法进行了比较 ,结果表明此方法可以得到目标清楚的成像
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| 关 键 词： | 离散调频-傅里叶变换 二次相位 雷达成像 |
| 文章编号： | 1001-506X(2002)03-0014-02 |
| 修稿时间： | 2001年3月22日 |
Discrete Chirp-Fourier Transform and Its Applications in Radar Imaging |
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| WANG Xiao ning\\{,\},XU Jia dong\.Discrete Chirp-Fourier Transform and Its Applications in Radar Imaging[J].System Engineering and Electronics,2002,24(3):14-15. |
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| Authors: | WANG Xiao ning\\{ \} XU Jia dong\ |
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| Institution: | WANG Xiao ning\+\{1,2\},XU Jia dong\+2 |
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| Abstract: | In this paper discrete Chirp-Fourier transform(DCFT) is introduced and the idea of DCFT for radar imaging is presented DCFT can be used to replace the Fourier transform for Doppler processing. There is no need to perform motion compensation to achieve radar imaging of high resolution even if the target echo contains quadratic phase. The method is compared with the Fourier transform by using point target model. The results show that it is effective to obtain clear images of the target. |
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| Keywords: | Discrete chirp-fourier transform Quadratic phase Radar imaging |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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