Expression and information hierarchical authorization of BDS reference station observation data based on states and residual

doi:10.11947/j.AGCS.2020.20190300

Abstract

Abstract: BDS reference stations typically store and transmit raw observations directly and make them available to users, which can lead to two disadvantages:first, there is no hierarchical authorization mechanism for users. Any user can solve the precise spatial, time and atmospheric datum information of the reference station through the original observation measurement, which poses a potential threat to the safety of the reference station, second, the strong correlation between the original observation measurement leads to a large amount of data, in BDS receiver observation appears network, uninterrupted, high sampling and multi-band trend, its observation data is a massive explosion, to the data storage and transmission have brought great pressure. Therefore, this paper proposes to use state and residual to express the raw observation data of BDS reference station. Compared with the common data services based on international protocols such as RINEX, Compact RINEX and RTCM, the advantage of this method is that it cannot only provide hierarchical authorization service of datum information for users, technically guarantee the security of data services, but also significantly reduce the amount of transmission data and user-side computation. At the same time, the new expression is equivalent to the original data and does not reduce the accuracy of the final calculation results. This method can be used to establish BDS observation data storage and transmission protocol with independent intellectual property rights, and provide technical support for satellite-based broadcasting services of high-precision data.

Key words: hierarchical authorization, states, residual, data protocol, satellite-based broadcast, network RTK, PPP

CLC Number:

P237
TD17

ZHOU Letao, HUANG Dingfa, YUAN Linguo, FENG Wei, GONG Xiaoying, TIAN Yumiao, ZHANG Xi, ZHAO Yinghao. Expression and information hierarchical authorization of BDS reference station observation data based on states and residual[J]. Acta Geodaetica et Cartographica Sinica, 2020, 49(10): 1265-1274.

References

[1] 党亚民. 加强卫星导航定位基准站监管保障国家地理信息安全[J]. 中国人大, 2017(9):38-39. DANG Yamin. Strengthen the supervision of satellite navigation and positioning reference stations to safeguard national geographic information security[J]. Chinese People's Congress, 2017(9):38-39.
[2] 党亚民, 章传银, 陈俊勇, 等. 现代大地测量基准[M]. 北京:测绘出版社, 2015. DANG Yamin, ZHANG Chuanyin, CHEN Junyong, et al. Modern geodetic datum[M]. Beijing:Surveying and Mapping Press, 2015.
[3] 黄丁发, 李成钢, 吴耀强, 等. GPS/VRS实时网络改正数生成算法研究[J]. 测绘学报, 2007, 36(3):256-261, 339. DOI:10.3321/j.issn:1001-1595.2007.03.003. HUANG Dingfa, LI Chenggang, WU Yaoqiang, et al. Study of the real-time network correction generation approach for GPS/VRS technique[J]. Acta Geodaetica et Cartographica Sinica, 2007, 36(3):256-261, 339. DOI:10.3321/j.issn:1001-1595.2007.03.003.
[4] 黄丁发, 周乐韬, 刘经南, 等. 基于Internet的VRS/RTK定位算法模型及实验研究[J]. 武汉大学学报(信息科学版), 2007, 32(3):220-224, 228. HUANG Dingfa, ZHOU Letao, LIU Jingnan, et al. Internet based VRS/RTK positioning algorithm and experiment[J]. Geomatics and Information Science of Wuhan University, 2007, 32(3):220-224, 228.
[5] 徐晓华, 熊剑, 罗佳. 利用Huffman算法对RINEX格式GPS观测文件进行压缩[J]. 测绘信息与工程, 2002, 27(5):21-22. XU Xiaohua, XIONG Jian, LUO Jia. The compression of GPS data file in RINEX format with Huffman algorithm[J]. Journal of Geomatics, 2002, 27(5):21-22.
[6] 李英冰, 闫景仙, 熊程波, 等. GNSS观测值的压缩方法研究[J]. 武汉大学学报(信息科学版), 2012, 37(7):818-822. LI Yingbing, YAN Jingxian, XIONG Chengbo, et al. Compression algorithm for GNSS observations data[J]. Geomatics and Information Science of Wuhan University, 2012, 37(7):818-822.
[7] HATANAKA Y. A compression format and tools for GNSS observation data[J]. Bulletin of the Geographical Survey Institute, 2008, 55:21-30.
[8] Radio Technical Commission for Maritime Services. Differential GNSS services-version 3:RTCM standard 10403.2[S]. Arlington, VA:Radio Technical Commission for Maritime Services, 2013.
[9] 周乐韬,黄丁发,冯威. 基于状态及残差的观测数据无损压缩方法:CN201710833151.9[P]. 2018-01-19. ZHOU Letao, HUANG Dingfa, FENG Wei. Non-destructive compression method of observation data based on state and residual:CN201710833151.9[P]. 2018-01-19.
[10] 张建明, 林亚平, 周四望, 等. 传感器网络中误差有界的小波数据压缩算法[J]. 软件学报, 2010, 21(6):1364-1377. ZHANG Jianming, LIN Yaping, ZHOU Siwang, et al. Haar wavelet data compression algorithm with error bound for wireless sensor networks[J]. Journal of Software, 2010, 21(6):1364-1377.
[11] BOEHM J, NIELL A, TREGONING P, et al. Global mapping function (GMF):a new empirical mapping function based on numerical weather model data[J]. Geophysical Research Letters, 2006, 33(7):304-307.
[12] DAVIS J L, HERRING T A, SHAPIRO I I, et al. Geodesy by radio interferometry:effects of atmospheric modeling errors on estimates of baseline length[J]. Radio Science, 1985, 20(6):1593-1607.
[13] SAASTAMOINEN J. Atmospheric correction for the troposphere and stratosphere in radio ranging of satellites[M]//HENRIKSEN S W, MANCINI A, CHOVITZ B H. The Use of Artificial Satellites for Geodesy. Washington, DC:American Geophysical Union, 1972:247-251.
[14] PETIT G, LUZUM B. IERS conventions (2010)[R].[S.l.]:IERS Convention Centre, 2010.
[15] LAGLER K, SCHINDELEGGER M, BÖHM J, et al. GPT2:Empirical slant delay model for radio space geodetic techniques[J]. Geophysical Research Letters, 2013, 40(6):1069-1073.
[16] ROTHACHER M, SCHMID R. ANTEX:The Antenna Exchange Format, v1.4[EB/OL]. (2018-04-25)[2018-11-05]. http://gnsser.com/Information/ViewDetails/356.
[17] SCHMID R, ROTHACHER M, THALLER D, et al. Absolute phase center corrections of satellite and receiver antennas[J]. GPS Solutions, 2005, 9(4):283-293.
[18] 周乐韬, 黄丁发, 冯威, 等. 北斗卫星导航系统/美国全球定位系统载波相位相对定位全球精度分析[J]. 中国科学:地球科学, 2019, 49(4):671-686. ZHOU Letao, HUANG Dingfa, FENG Wei, et al. Global precision analysis of carrier phase relative positioning in BeiDou navigation satellite system and United States global positioning system[J]. Science China Earth Sciences, 2019, 49(4):671-686.
[19] 崔希璋, 於宗俦, 陶本藻, 等. 广义测量平差[M]. 武汉:武汉测绘科技大学出版社, 2001. CUI Xizhang, YU Zongchou, TAO Benzao, et al. Generalized surveying adjustment[M]. Wuhan:Wuhan University of Surveying and Mapping Science and Technology Press, 2001.
[20] KLOBUCHAR J A. Ionospheric effects on GPS[M]//PARKINSON B W, SPILKER J J JR, AXELRAD P, et al. Global Positioning System:Theory and Applications. Washington, DC:American Institute of Aeronautics and Astronautics, Inc., 1996.
[21] XU Guochang. GPS:theory, algorithms and applications[M]. 2nd ed. Berlin:Springer-Verlag, 2007.
[22] GE Maorong, GENDT G, ROTHACHER M, et al. Resolution of GPS carrier-phase ambiguities in Precise Point Positioning (PPP) with daily observations[J]. Journal of Geodesy, 2008, 82(7):389-399.
[23] LI Xingxing, GE Maorong, ZHANG Hongping, et al. A method for improving uncalibrated phase delay estimation and ambiguity-fixing in real-time precise point positioning[J]. Journal of Geodesy, 2013, 87(5):405-416.
[24] GENG Jianghui, MENG Xiaolin, DODSON A H, et al. Rapid re-convergences to ambiguity-fixed solutions in precise point positioning[J]. Journal of Geodesy, 2010, 84(12):705-714.
[25] 彭小强, 高井祥, 王坚. WGS84和CGCS2000坐标转换研究[J]. 大地测量与地球动力学, 2015, 35(2):219-221. PENG Xiaoqiang, GAO Jingxiang, WANG Jian. Research of the coordinate conversion between WGS84 and CGCS2000[J]. Journal of Geodesy and Geodynamics, 2015, 35(2):219-221.