[关键词]
[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.
[Key word]
[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...
[中图分类号]
TN957.51
[基金项目]
中国博士后科学基金?
