摘要
本文研究基于小波零树编码的天气雷达立体扫描数据压缩算法。根据雷达回波数据的特点 ,提出了一种有效的雷达数据预处理方案 ,然后利用Shapiro的嵌入式小波零树算法对预处理后的图像数据进行压缩实验。实验结果表明 ,该雷达回波数据压缩算法 ,在低比特率情况下 。
In this paper,a novel compression algorithm for weather radar data based on zerotree coding is presented.Considering the dependence of radar data,an efficient pre-processing algorithm for the data is given first,and the redundancy of the data is efficiently reduced.Then the Shapiro's embedded zerotree wavelet algorithm is used to compress the pre-processed data.Experimental results show that for the weather radar data,the proposed algorithm achieves good PSNR even in very low bit rate.
出处
《计算机应用与软件》
CSCD
北大核心
2004年第11期56-57,101,共3页
Computer Applications and Software
