|
|||||
|
|
| 星地遥感数据压缩的差分编码方法研究 | |
| 引用本文： | 林宗坚,姚娜,邓冰. 星地遥感数据压缩的差分编码方法研究[J]. 航天器工程, 2011, 20(5): 4-10 |
| 作者姓名： | 林宗坚 姚娜 邓冰 |
| 作者单位： | 1. 中国测绘科学研究院,北京,100830 2. 武汉大学遥感信息工程学院,武汉,430079 3. 北京测科空间信息技术有限公司,北京,100039 |
| 基金项目： | 国家自然科学基金:空间数据的信息量与不确定性分析(41071286) |
| 摘 要： | 为了提高星地传输的工作效率,文章以信息论为理论基础,提出一种差分编码方法用于星地遥感数据的传输。同时,鉴于地表覆盖本身的不确定度与应用需求的不同,提出了分区预测差分编码与保持立体测量精度的差分编码。这两种压缩策略可进一步显著提高差分编码的压缩比。 |
| 关 键 词： | 遥感 数据传输 数据压缩 差分编码 信息量 |
Research on Differential Coding Method for Satellite Remote Sensing Data Compression |
|
| LIN Zongjian YAO Na DENG Bing. Research on Differential Coding Method for Satellite Remote Sensing Data Compression[J]. Spacecraft Engineering, 2011, 20(5): 4-10 | |
| Authors: | LIN Zongjian YAO Na DENG Bing |
| Affiliation: | LIN Zongjian1 YAO Na2 DENG Bing3(1 Chinese Academy of Surveying and Mapping,Beijing 100830,China)(2 Remote Sensing information Engineering School,Wuhan University,Wuhan 430079,China)(3 Beijing Ceke Spatial Information Technology Limited Company,Beijing 100039,China) |
| Abstract: | In order to improve work efficiency of data transmission between satellite and the Earth,the paper proposes a differential coding method for satellite remote sensing data transmission based on the information theory.By considering the uncertainty of different land covers and different application purposes,a district forecast differential coding method and a stereo measurement precision protection method for differential coding are proposed.Both of the two compression strategies can further improve the compr... |
| Keywords: | remote sensing data transmission data compression differential coding information amount |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |