| 基于目标宽度特征的脉间跳频雷达距离精确成像 |
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| 作者姓名： | 王一丁 凃国防 |
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| 作者单位： | 中国科学院研究生院信息学院 北京100049 |
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| 摘 要： | 根据雷达目标的宽度特征，提出了目标检测窗口内雷达信号的逆Chirp z变换局部成像处理方法。利用有限的输入数据长度，有效提高目标局部距离像的采样分辨率，获得更精确的距离像。与传统的数据长度补零逆傅里叶变换方法相比，在相同的采样分辨率条件下，该方法能有效减小计算量。仿真实验结果与理论分析相符合，证明了该方法的有效性。
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| 关 键 词： | 脉间频率步进雷达 脉冲压缩 逆傅里叶变换 逆Chirp-z变换 |
| 收稿时间： | 2004-01-15 |
High Precision Range Imaging of Pulse Stepped Frequency Radar Based on Target' s Feature |
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| Authors: | Wang Yiding Tu Guo-Fang |
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| Institution: | Graduate School of the Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | According to radar target' s width feature , an inverse Chirp-z transformation method was put forward for the target' s detection window .It aimed to obtain high precision range image via increasing sampling resolution . Compared with traditional inverse Fourier transform method , which used zeros padding method , at the same condition of sampling resolution , the method proposed could decrease the calculation load .Simulation corresponded with theoretical analysis , and the results proved it was effective. |
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| Keywords: | pulse stepped frequency radar pulse compression inverse Fourier transform inverse Chirp-z transform |
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