| 对RINEX格式GPS观测文件的压缩算法研究及软件实现 |
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| 引用本文： | 秦士琨,郝金明,王柬,陈雷. 对RINEX格式GPS观测文件的压缩算法研究及软件实现[J]. 海洋测绘, 2008, 28(1): 36-38 |
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| 作者姓名： | 秦士琨 郝金明 王柬 陈雷 |
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| 作者单位： | 解放军信息工程大学,测绘学院,河南,郑州,450052;解放军信息工程大学,测绘学院,河南,郑州,450052;解放军信息工程大学,测绘学院,河南,郑州,450052;解放军信息工程大学,测绘学院,河南,郑州,450052 |
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| 摘 要： | 针对RINEX格式的GPS观测数据文件，利用观测数据的相关性设计一种新的压缩算法，并进行了对算法的软件编制以及试验。实现了对观测文件的快速、无损压缩。试验证明，这种压缩算法对RINEX格式的GPS观测数据文件的压缩比率在75％左右，优于常用的Huffman、改进半字节等算法。
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| 关 键 词： | 数据压缩 一种新的压缩算法 RINEX |
| 文章编号： | 1671-3044（2008）01-0036-03 |
| 收稿时间： | 2007-07-05 |
| 修稿时间： | 2007-09-07 |
Software Implementation and Compression Algorithm Research onGPS Observation File in RINEX Format |
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| QIN Shi-kun,HAO Jin-ming,WANG Jian,CHEN Lei. Software Implementation and Compression Algorithm Research onGPS Observation File in RINEX Format[J]. Hydrographic Surveying and Charting, 2008, 28(1): 36-38 |
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| Authors: | QIN Shi-kun HAO Jin-ming WANG Jian CHEN Lei |
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| Affiliation: | ( Institute of Surveying and Mapping, Information Engineering University, Zhengzhou, Henan ,450052) |
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| Abstract: | Aiming at GPS observation file in RINEX format,this paper presents a new data compression algorithm by using the interrelationship of the observation data,programs the algorithmic software and experiments it.In this algorithm,rapid and lossless compression on the observation file is realized.At the same time,the experiment proves that this kind of compression algorithm can make the compression ratio achieve about 75%,which is superior to some common algorithms such as Huffman and improved half-byte. |
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| Keywords: | data compression a new compression algorithm RINEX |
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