| GNSS差分数据格式编解码算法研究与实现 |
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| 引用本文： | 高晟俊,谭羽安.GNSS差分数据格式编解码算法研究与实现[J].测绘科学,2018(3):19-23,34. |
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| 作者姓名： | 高晟俊 谭羽安 |
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| 作者单位： | 武汉大学中国南极测绘研究中心,武汉,430079
武汉迈普时空导航科技有限公司,武汉,430070 |
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| 摘 要： | 针对RTCM委员会推出的GNSS差分数据传输格式RTCM 10403.2,该文介绍了其电文特点,并着重分析了其内部循环算法和CRC校验算法。RTMC 3.2格式相比之前版本增加了MSM电文组,在数据格式上最大的特点是采用了内部循环,并首次支持了北斗卫星导航系统。针对这些特点,文章设计了编解码算法,编写软件予以实现并对编码算法和解码算法分别进行实验。实验结果表明:所设计的编解码算法及编写的软件能够正确,并可靠地处理RTCM 3.2数据格式,可以在实际的GNSS差分定位中进行应用。
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| 关 键 词： | RTCM 3.2 编码 解码 差分GNSS RTCM 3.2 encode decode differential GNSS |
DGNSS data format and its realization of encoding and decoding algorithm |
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| GAO Shengjun,TAN Yu'an.DGNSS data format and its realization of encoding and decoding algorithm[J].Science of Surveying and Mapping,2018(3):19-23,34. |
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| Authors: | GAO Shengjun TAN Yu'an |
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| Abstract: | In this paper,the RTCM 10403.2,which is introduced by the RTCM committee,is introduced,and its characteristics are introduced.The inner loop algorithm and the CRC algorithm are analyzed emphatically.RTMC 3.2 formats compared to the previous version increased MSM message group,the most important feature of the data format is using the internal loop,and for the first time to support the Beidou satellite navigation system.In view of these characteristics,the article systematically designed the codec algorithm and wrote the software to be realized.Finally,the encoding and decoding algorithms are experimented respectively.The experimental results show that the proposed codec algorithm and the software can correctly and reliably handle the RTCM 3.2 data format and can be applied in practical GNSS differential positioning. |
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