| LFM-CW雷达距离分段欠采样处理方法 |
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| 引用本文： | 杨建宇,丁义元,杨晓波.LFM-CW雷达距离分段欠采样处理方法[J].电子科技大学学报(社会科学版),1993(2). |
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| 作者姓名： | 杨建宇 丁义元 杨晓波 |
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| 作者单位： | 电子科技大学电子工程系，电子科技大学电子工程系，电子科技大学电子工程系 成都 610054，成都 610054，成都 610054 |
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| 摘 要： | 提出了一种用于线性调频连续波(LFM-CW)雷达的信号处理新方法。该方法用带通滤波器在频域內实现差拍信号的距离分段,然后用第一距离段所需采样率对每个距离段进行采样和FFT处理。在距离分辨单元数很大时,这种方法可以大大降低LFN-CW雷达对信号处理器的要求。
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| 关 键 词： | 调频雷达 线性调制 连续波 差拍信号 距离分段 欠采样 |
A SIGNAL PROCESSING METIHOD OF RANGE-SEGMENT SEPARATING AND LACK-SAMPLING IN LFM-CW RADARS |
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| Yang Jianyu Ding Yiyuan Yang Xiaobo.A SIGNAL PROCESSING METIHOD OF RANGE-SEGMENT SEPARATING AND LACK-SAMPLING IN LFM-CW RADARS[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),1993(2). |
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| Authors: | Yang Jianyu Ding Yiyuan Yang Xiaobo |
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| Abstract: | A novel signal processing method in LFM-CW radars is proposed. Range segments are obtained by bandpass filtering the beat signal into several bandpass real signals. Each range segment is sampled at a samplhig rate satisfied the Nyquist sampling requirement of the first range segment, and is processed via FFT. The method is useful for releasing the requirement of digital signal processors in LFM-CW radars, especially when the number of range cells is quite large. |
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| Keywords: | frequcg-modulated radar linear modulation continuous wave beat signal range segment separating lack sampling |
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