基于0阈值的双位图压缩+双Huffman组合压缩算法

The algorithm of double bit mapping compression & double Huffman based on zero threshold

根据实测的气象雷达原始回波数据的特点,对其二进制类型数据文件进行压缩。将位图压缩算法、Huffman压缩算法以及利用阈值将数据分类的方法进行组合,设计出了0阈值的双位图压缩+双Huffman压缩算法的组合压缩算法。采用此算法对实测数据在C环境下进行压缩/解压测试。测试结果表明:组合算法以比通用压缩算法及压缩软件WinRar、WinZip的以较少的压缩时间取得了较好的压缩率。

Considering the dependence of weather radar raw data based-on binary system file, bit mapping compression and Huffman and threshold are used to compress the data. According to the integrated algorithm, the algorithm who is double bit mapping compression ＆ double Huffman based on zero threshold are designed.. The integrated compression algorithm is used to compress/decompress real raw data in C environment. The experimental result shows that the integrated compression algorithm is better than traditional compression algorithms and nnnHlnr onrnnr^inn gnftwnrog WinRnr nnd WinZin nhtzintwl a nreferahla aarnnresslon rnlia wilh little, time engl_