| 一种有效的宽带雷达信号压缩算法 |
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| 引用本文： | 魏文斌,于文震. 一种有效的宽带雷达信号压缩算法[J]. 华南农业大学学报(社会科学版), 2010, 0(4) |
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| 作者姓名： | 魏文斌 于文震 |
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| 作者单位： | 魏文斌,WEI Wen-bin(南京电子技术研究所,南京,210039;空军雷达学院空天基预警监视装备系,武汉,430019);于文震,YU Wen-zhen(南京电子技术研究所,南京,210039)? |
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| 摘 要： | 针对宽带雷达回波信号采样数据量大、传统小波压缩算法保真度不高的特点,利用小波多层次变换系数之间的关系,提出了基于小波变换的自适应贪婪算法,并将其应用于宽带雷达回波信号数据压缩.将该算法与传统的小波多层次方法在对宽带信号的压缩性能上进行了比较,结果表明,基于小波的自适应贪婪算法对数据压缩保真效果优于传统的小波方法.
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| 关 键 词： | 宽带信号压缩 小波多层次方法 自适应小波贪婪算法 |
An Efficient Algorithm for Compressing Wideband Radar Signals |
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| WEI Wen-bin,YU Wen-zhen. An Efficient Algorithm for Compressing Wideband Radar Signals[J]. Journal of South China Agricultural University:Social Science Edition, 2010, 0(4) |
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| Authors: | WEI Wen-bin YU Wen-zhen |
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| Affiliation: | WEI Wen-bin1,2,YU Wen-zhen1(1.Nanjing Research Institute of Electronics Technology,Nanjing 210039,China)(2.Department of Air/Speace-based Early-warning Surveillance Equipment,AFRA,Wuhan 430019,China) |
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| Abstract: | Wideband radar echo signal and corresponding abundant sampling data make some traditional wavelet compression algorithms not have high fidelity.In this paper,according to the relations among multilevel coefficients after wavelet transformation,an adaptive greedy algorithm based on wavelet transformation is proposed and applied to compress wideband radar echo signals.Moreover,the effects on wideband signals compressed by this algorithm and by the traditional multilevel algorithm are compared.Simulation resul... |
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| Keywords: | wideband signal compression wavelet multilevel algorithm adaptive wavelet greedy(AWG)algorithm |
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