| 基于小波的宽带雷达信号建模研究 |
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| 引用本文： | 蔡颖,杨宗凯,唐进.基于小波的宽带雷达信号建模研究[J].华中科技大学学报(自然科学版),1997(8). |
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| 作者姓名： | 蔡颖 杨宗凯 唐进 |
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| 作者单位： | 华中理工大学电子与信息工程系 |
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| 基金项目： | 国防科工委国家雷达重点实验室宽带雷达研究资助项目 |
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| 摘 要： | 建立了宽带雷达信号模型，讨论了窄带信号模型的局限性，研究了宽带信号的约束条件；提出了以母波为发送信号并以不同尺度和时移的子波来建立宽带回波信号的数学模型；仿真实验表明，基于这种模型，利用连续小波变换实现发波与回波相关函数的计算，即使在低信噪比的情况下，仍然是有效的
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| 关 键 词： | 宽带雷达信号模型 窄带雷达信号模型 小波变换 |
Wideband Radar Signal Modeling Based on the Wavelet |
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| Cai Ying, Dept. of Electronics & Inform. Eng.,HUST,Wuhan ,China . Yang Zongkai Tang Jin.Wideband Radar Signal Modeling Based on the Wavelet[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1997(8). |
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| Authors: | Cai Ying Dept of Electronics & Inform Eng HUST Wuhan China Yang Zongkai Tang Jin |
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| Institution: | Cai Ying, Dept. of Electronics & Inform. Eng.,HUST,Wuhan 430074,China . Yang Zongkai Tang Jin |
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| Abstract: | A wideband radar signal model is developed. The limitations of the narrowband radar signal model are discussed. The constraint conditions of the wideband signal are investigated. A wideband echo signal model based on wavelets with different scales and time shiftings and with the original wave as the transmitting signal is also developed. A simulation study shows that even when the SNR is low, the model is useful to the calculation of the correlation function between the transmitted waves and the echoes by continuous wavelet transforms. |
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| Keywords: | wideband radar signal model narrowband radar signal model wavelet transform |
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