| 基于预测树的天气雷达回波数据无损压缩 |
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| 引用本文： | 艾未华,黄云仙,沈超玲,郝锦锦.基于预测树的天气雷达回波数据无损压缩[J].测绘信息与工程,2010,35(4):9-11. |
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| 作者姓名： | 艾未华 黄云仙 沈超玲 郝锦锦 |
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| 作者单位： | 1. 解放军理工大学气象学院,南京市双龙街60号,211101
2. 南京军区联勤部指挥自动化站,南京市明故宫6号,210016 |
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| 基金项目： | 解放军理工大学气象学院基础理论基金，解放军理工大学预先研究基金 |
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| 摘 要： | 利用了各层回波图像间的相关系数建立预测排序树,采用了自适应算术编码实现天气雷达回波数据的无损压缩,实现了天气雷达回波数据的有效压缩。
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| 关 键 词： | 天气雷达回波 预测排序树 线性预测 无损压缩 |
LOSSLESS COMPRESSION OF WEATHER RADAR DATA BASED ON PREDICTION TREE |
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| AI Weihua,HUANG Yunxian,SHEN Chaoling,HAO jinjin.LOSSLESS COMPRESSION OF WEATHER RADAR DATA BASED ON PREDICTION TREE[J].Journal of Geomatics,2010,35(4):9-11. |
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| Authors: | AI Weihua HUANG Yunxian SHEN Chaoling HAO jinjin |
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| Institution: | 1 Institute of Meteorology,PLA University of Science and Technology,60 Shuanglong Road,Nanjing 211101,China;2 Automatic Headquaters,Joint Logistics Department of Nanjing Military Aera,6 Minggugong Nanjing 210016,China) |
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| Abstract: | A novel lossless coding and compression algorithm for weather radar data is presented.Considering the specialty of radar data,the efficient pre-processing algorithm for the data is proposed for coordinate transformation.Then,prediction sorting trees according to the correlation between weather images is presented and an optimal waveband prediction is designed for de-correlating the redundancy.Finally,the adaptive arithmetic algorithm is used for improving the compression ratio.The experiments show that the proposed method can get high compression ratio. |
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| Keywords: | weather radar data prediction sorting tree linear prediction lossless compression |
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