成都理工大学CORS系统的建设与精度测试
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摘要
网络RTK技术一般要建立一个CORS (Continuously Operating Reference Sta- tions)系统,即连续运行参考站系统。该系统是在研究区域范围内,建立基于若干个连续运行参考站、数据通信和互联网(LAN/WAN)技术进行实时差分改正信息解算,实时地向不同类型、不同需求、不同层次的用户自动地提供经过检验的不同类型的GPS观测值(载波相位、伪距),各种改正数、状态信息,以及其他有关GPS服务项目的系统。
目前,国内的CORS系统的建站方案很多都需要投入百万甚至上千万的资金,而对那些小规模小范围应用的单位来说就显得负担过重,从而使很多行业和单位对CORS可望而不可及。相对于多站CORS系统,单站CORS系统的建设投入少,技术更成熟,数据安全、稳定,作业范围广,施工周期短,且系统可随时升级和扩展。
在本文的研究过程中,学习了国内外大量网络RTK的研究成果及网络RTK应用的现状。对连续运行参考站(CORS)技术进行了深入地研究和探讨,着重对CORS系统的差分定位技术做了细致地分析。并依托成都理工大学CORS系统的建设项目,完成了成都理工大学CORS系统的建设及系统的测试工作,掌握了CORS系统的原理、建设流程、应用方法,通过精度测试验证了CDUTCORS系统在设计范围内有较高精度,达到了本研究的预期目的。
论文研究成果主要包括以下几个方面:
(1)本文在研究过程中学习了网络RTK基础知识,借鉴了国内外网络RTK的研究成果,在此基础之上完成了CDUTCORS系统的建设,为后续的各种测试奠定基础。
(2)为了检测比较CDUTCORS系统的定位精度,建立了一个静态控制网,通过与CDUTCORS系统周边的国家CORS站联测获取了各控制点的CGCS2000坐标成果。
(3)完成了CDUTCORS系统的时效性测试、空间可用性测试、定位精度测试以及兼容性测试。其中在定位精度测试中对系统的平面精度和高程精度做了具体分析。
Network RTK technology generally need establish a CORS(Continuously Operating Reference Stations system),which a continuously reference station system. CORS is the system that within the study area,establishing a continuously operating reference station-based,data communications and Internet (LAN / WAN) technology for solving real-time differential correction information,and providing the different types,different needs,different automatically user tested different types of GPS observations (carrier phase,pseudo-range),all kinds of corrections,state information,and other related GPS services in real time.
Currently,the domestic program of siting CORS system needs a lot of millions or even tens of millions of investment capital,while the burden for the small-scale application units becomes too heavy,the result in many industries and units expectes unattainably. Relative to the multi-station CORS system,single station CORS system is the system that a smaller,more sophisticated technology,data security,stability,wide operating range,short construction period,and the system can always upgrade and expansion.
In the course of this study, learning a large number of network RTK and network RTK research application of the status quo at home and abroad.Studing and discussing the Continuous operating reference stations (CORS) techniques. Focusing on the CORS system differential positioning technology. On the basis of a CORS system construction project of Chengdu University of technology, completed the CORS system construction of Chengdu University of technology and system testing, mastered the principle of the CORS system, construction processes, application methods and verified by testing the accuracy CDUTCORS system within the scope in the design of high precision,reaching the desired objective of this study.
The research results include the following:
(1) Based on the research about the basics of network RTK, Network RTK draws on the research results at home and abroad, we completed the CDUTCORS systems, the various tests for the follow-up basis.
(2) In order to compare and detect the positioning accuracy of the CDUTCORS system,we established a static control network.Through the CORS stations of the United States around,we obtained the control points results of the CGCS2000.
(3) We completed the timeliness testing, usability testing of space, location accuracy testing and compatibility testing of the CDUTCORS system. Positioning accuracy test in which the system ,accuracy and the plane made a detailed analysis of the height accuracy.
目前,国内的CORS系统的建站方案很多都需要投入百万甚至上千万的资金,而对那些小规模小范围应用的单位来说就显得负担过重,从而使很多行业和单位对CORS可望而不可及。相对于多站CORS系统,单站CORS系统的建设投入少,技术更成熟,数据安全、稳定,作业范围广,施工周期短,且系统可随时升级和扩展。
在本文的研究过程中,学习了国内外大量网络RTK的研究成果及网络RTK应用的现状。对连续运行参考站(CORS)技术进行了深入地研究和探讨,着重对CORS系统的差分定位技术做了细致地分析。并依托成都理工大学CORS系统的建设项目,完成了成都理工大学CORS系统的建设及系统的测试工作,掌握了CORS系统的原理、建设流程、应用方法,通过精度测试验证了CDUTCORS系统在设计范围内有较高精度,达到了本研究的预期目的。
论文研究成果主要包括以下几个方面:
(1)本文在研究过程中学习了网络RTK基础知识,借鉴了国内外网络RTK的研究成果,在此基础之上完成了CDUTCORS系统的建设,为后续的各种测试奠定基础。
(2)为了检测比较CDUTCORS系统的定位精度,建立了一个静态控制网,通过与CDUTCORS系统周边的国家CORS站联测获取了各控制点的CGCS2000坐标成果。
(3)完成了CDUTCORS系统的时效性测试、空间可用性测试、定位精度测试以及兼容性测试。其中在定位精度测试中对系统的平面精度和高程精度做了具体分析。
Network RTK technology generally need establish a CORS(Continuously Operating Reference Stations system),which a continuously reference station system. CORS is the system that within the study area,establishing a continuously operating reference station-based,data communications and Internet (LAN / WAN) technology for solving real-time differential correction information,and providing the different types,different needs,different automatically user tested different types of GPS observations (carrier phase,pseudo-range),all kinds of corrections,state information,and other related GPS services in real time.
Currently,the domestic program of siting CORS system needs a lot of millions or even tens of millions of investment capital,while the burden for the small-scale application units becomes too heavy,the result in many industries and units expectes unattainably. Relative to the multi-station CORS system,single station CORS system is the system that a smaller,more sophisticated technology,data security,stability,wide operating range,short construction period,and the system can always upgrade and expansion.
In the course of this study, learning a large number of network RTK and network RTK research application of the status quo at home and abroad.Studing and discussing the Continuous operating reference stations (CORS) techniques. Focusing on the CORS system differential positioning technology. On the basis of a CORS system construction project of Chengdu University of technology, completed the CORS system construction of Chengdu University of technology and system testing, mastered the principle of the CORS system, construction processes, application methods and verified by testing the accuracy CDUTCORS system within the scope in the design of high precision,reaching the desired objective of this study.
The research results include the following:
(1) Based on the research about the basics of network RTK, Network RTK draws on the research results at home and abroad, we completed the CDUTCORS systems, the various tests for the follow-up basis.
(2) In order to compare and detect the positioning accuracy of the CDUTCORS system,we established a static control network.Through the CORS stations of the United States around,we obtained the control points results of the CGCS2000.
(3) We completed the timeliness testing, usability testing of space, location accuracy testing and compatibility testing of the CDUTCORS system. Positioning accuracy test in which the system ,accuracy and the plane made a detailed analysis of the height accuracy.
引文
[1]黄丁发,熊永良,袁林果.全球定位系统(GPS)—理论与实践[M].成都:西南交通大学出版社,2006.
[2]黄俊华.陈文森.连续运行卫星定位综合服务系统建设与应用[M].北京:科学出版社.2009.
[3] G.H.Hu.V.H.S Khoo etc.Internet-based GPS VRS RTK Positioning with a Multiple Reference Station Network[J].Journal of Global Positioning System.2002:113-120.
[4] Stefan Willgalis.Gunter Seeber.Falko Menge.Implementation of a GPS Reference Network for Precise Real Time Positioning in Recife[C].ION GPS 2001:11-14.
[5] T.A.Musa.J.Wang.C.Rizos etc.Stochastic Modeling for Network-Based GPS Positioning.The 6th International Symposium on Satellite Navigation Technology Includ- ing Mobile Positioning and Location Services[C]. 2003: 22-25.
[6]赵礼剑.程新文等.单基站GPS差分系统在山区线路测量中的应用探讨[J].测绘科学, 2008,10(33增刊):223-226.
[7]李华,陈勇,张振宇.CORS的发展状况和建立CORS的必要性[J].信息技术,2009,5:121-125.
[8]孙晓明,吴邵芳.GPS RTK单基站和虚拟参考站技术的特征及比较[J].城市勘测,2009,5:63-66.
[9]孙振勇,杨秀川等.单站CORS双星系统的构建及其在水文测量中的应用研究[J].计算机与网络,2009,20:177-179.
[10]张英平,程广振等.I菏泽市连续运行GPS参考站系统的建立[J].城市勘测,2009,4:46-48.
[11]董俊超,叶飞等.宜昌市连续运行单参考站(CORS)的建立[J].测绘信息与工程,2009,3:10-11.
[12]周忠漠,易杰军,周琪.GPS卫星测量原理与应用[M].北京:测绘出版社,2004.
[13]李天文.GPS原理及应用[M].北京:科学出版社,2007.
[14]张崇伟,杜世强,陈永冰.位置差分GPS定位误差分析与远距离差分试验[J].导航,1992,6(2):47-52.
[15]杨永平,冯立清,张辉.GPS伪距差分定位技术的试验研究[J].铁道勘察,2006,1:14-17.
[16]包欢.差分方法在测量中的应用[J].测绘通报,2003,5:29-31.
[17]张勇,李岳峰,徐立东.GPS相位平滑伪距差分定位中若干问题的探讨[J].全球定位系统,2010,2:22-25.
[18]王广运,郭秉义,李洪涛.差分GPS定位技术与应用[M].北京:电子工业出版社,1996.
[19]张伟.虚拟参考站(VRS)系统的建设与研究[D].硕士论文,吉林大学,2008.
[20]蔡建忠,张志勇.实时动态定位技术在土地勘测工作中的应用[J].测绘通报,2003,5:32-34.
[21] Ulrich Vollath,Alois Buecherl.Multi-base RTK Positioning Using Virtual Reference Stations,ION GPS2000:19-22.
[22]杨洋,虚拟参考站(VRS)技术及其精度评定[D].硕士学位论文,西南交通大学,2007.
[23] Hu G. R.khoo H. S., Goh P. C., Peformance of SingaPore Integrated Multiple Reference Station Network(SIMRSN) for RTK positioning,GpS Solutions.2002,6(1):65-71.
[24] Günther RETSCHER, Accuracy Performance of Virtual Referenee Station(VRS) Networks,Jouranl of Global Positioning Systems.2002,1(1):40-47.
[25] Herbert Landau,Ulrich Vollath,Xiaoming Chen,Virtual Reference Station Systems Journal of Global Positioning System.2002:137-143.
[26] A Study on GPS/GLONASS Multiple Reference Station Techniques for Precise Real-Time Carrier Phase-Based Positioning,School of Surveying and Spatial Information Systems,the Uni-Versity of New South Wales,ION GPS 2001:11-14.
[27]史先领,张书毕.网络RTK中几种实用技术的分析比较[J].海洋测绘,2006,9:75-78.
[28]杨小军.虚拟参考站(VRS)技术与差分改正信息的研究[D].硕士论文,西南交通大学,2005.
[29] Raquet J F,Lachapelle G.RTK Positioning with Multiple Reference Stations[J].GPS World,2001,12(4):33-48.
[30]高星伟.GPS/GLONASS网络RTK算法研究与程序实现[D].武汉:武汉大学,2002.
[31]唐卫明.PowerNetwork软件关键技术介绍和性能分析[J].武汉大学:信息科学版,2008,33(8):868-871.
[32]周乐韬.连续运行参考站网络实时动态定位理论、算法和系统实现[D].硕士论文,西南交通大学,2007.
[33]刘彦芳,何建国等.几种网络RTK技术的比较分析[J].地理空间信息,2009,4(7):89-92.
[34]张成军.虚拟参考站误差分析与算法研究[D].硕士论文,解放军信息工程大学,2005.
[35]吴俐民,丁仁军,李凤霞.GPS参考站系统原理与应用[M].成都:西南交通大学出版社,2008.
[36]朱祥维,肖华等.卫星钟差预报的Kalman算法及其性能分析[J].宇航学报,2008,5:966-970.
[37]赵刚,张晶.GPS测量中的误差分析及减弱和消除误差的方法[J].井冈山学院学报(自然科学),2007,8:28-30.
[38]谢世杰,韩明锋.论电离层对GPS定位的影响[J].测绘工程,2000,3:9-15.
[39]西南交通大学测量工程系GPS研发中心,基于Internet的网络GPS定位理论研究与系统开发,2005.
[40]章红平,平劲松等.电离层延迟改正模型综述[J].天文学进展,2003,3(1):16-26.
[41]余明,郭际明,过静君.GPS电离层延迟Klobuchar模型与双频数据解算值的比较与分析[J].测绘通报,2004(6):5-8.
[42] A.M.Meza,C.A.Brunini,W.Bosch,etc.Comparing vertical total electron content from GPS,Bent and IRI models with TOPEX-poseidon[J].Advanced Space Research,2002,30(2):401-406.
[43]吴雨航,陈秀万等.电离层延迟修正方法评述[J].全球定位系统,2008(2):1-5.
[44] D.Bilitza.IRI:An international rawer initiative[J].Advance Space Research,1995,15(2):7-10.
[45]刘经南,陈俊勇,张燕平等.广域差分GPS原理和方法[M].北京:测绘出版社,1999.
[46]王解先.GPS精密定轨定位[M].上海:同济大学出版社,1997.
[47]刘大杰,施一民,过静珺.全球定位系统(GPS)的原理与数据处理[M].上海:同济大学出版社,1997.
[48] Hopfiled H.S. Two-quartic Tropospheric Refractivity Profile for Correcting Satellite Data[J].Journal of Geophysical Research,1969,74(17):4487-4499.
[49] Saastamoinen J.Contributions to the Theory of Atmospheric Refraction[J].Bulletin Geodesique,1973:13-34.
[50] BAR-SEVER Y E,KROGER P M.Strategies for GPS-based estimates of troposphere delay[C]//The 9th International Technical Meeting of the Satellite Division of the Institute of Navigation,Missouri,1996:128-132.
[51]王新龙,李亚峰.GPS定位中4种对流层延迟修正模型适应性分析[J].电光与控制,2008,11:5-9.
[52] Davis,J.L.,T.A.Herring,I.I.Shapiro,A.E.E.Rogers,G.Elgered.Geodesy by radio interferometry:Effects of atmospheric modeling errors on estimates of baseline length[J].Radio Science,1985(20):1593-1607.
[53]陈芳,高永梅,张玉.GPS测量误差中关于对流层延迟的探讨[J].西部探矿工程,2005(3).
[54]常庆生,唐四元,常青.GPS测量的误差及精度控制[J].测绘通报,2000,4:13-15.
[55]王晓强.GPS测量中多路径误差的影响[J].地壳形变与地震,2000,1:56-59.
[56]万进桃,包海.利用平稳时间序列模拟接收机钟误差[J].测绘工程,2009,2(1):11-13.
[58]李军,王继业.东北亚地区GPS观测数据质量检测和分析[J].武汉大学学报.信息科学版,2006,31(3):209~212.
[59]李克恭,牛岸英等.CGCS2000对现有地图使用精度影响分析[J].矿山测量,2010,6(2):17-19.
[60]张华海,王宝山等.应用大地测量学[M].徐州:中国矿业大学出版社,2008.
[2]黄俊华.陈文森.连续运行卫星定位综合服务系统建设与应用[M].北京:科学出版社.2009.
[3] G.H.Hu.V.H.S Khoo etc.Internet-based GPS VRS RTK Positioning with a Multiple Reference Station Network[J].Journal of Global Positioning System.2002:113-120.
[4] Stefan Willgalis.Gunter Seeber.Falko Menge.Implementation of a GPS Reference Network for Precise Real Time Positioning in Recife[C].ION GPS 2001:11-14.
[5] T.A.Musa.J.Wang.C.Rizos etc.Stochastic Modeling for Network-Based GPS Positioning.The 6th International Symposium on Satellite Navigation Technology Includ- ing Mobile Positioning and Location Services[C]. 2003: 22-25.
[6]赵礼剑.程新文等.单基站GPS差分系统在山区线路测量中的应用探讨[J].测绘科学, 2008,10(33增刊):223-226.
[7]李华,陈勇,张振宇.CORS的发展状况和建立CORS的必要性[J].信息技术,2009,5:121-125.
[8]孙晓明,吴邵芳.GPS RTK单基站和虚拟参考站技术的特征及比较[J].城市勘测,2009,5:63-66.
[9]孙振勇,杨秀川等.单站CORS双星系统的构建及其在水文测量中的应用研究[J].计算机与网络,2009,20:177-179.
[10]张英平,程广振等.I菏泽市连续运行GPS参考站系统的建立[J].城市勘测,2009,4:46-48.
[11]董俊超,叶飞等.宜昌市连续运行单参考站(CORS)的建立[J].测绘信息与工程,2009,3:10-11.
[12]周忠漠,易杰军,周琪.GPS卫星测量原理与应用[M].北京:测绘出版社,2004.
[13]李天文.GPS原理及应用[M].北京:科学出版社,2007.
[14]张崇伟,杜世强,陈永冰.位置差分GPS定位误差分析与远距离差分试验[J].导航,1992,6(2):47-52.
[15]杨永平,冯立清,张辉.GPS伪距差分定位技术的试验研究[J].铁道勘察,2006,1:14-17.
[16]包欢.差分方法在测量中的应用[J].测绘通报,2003,5:29-31.
[17]张勇,李岳峰,徐立东.GPS相位平滑伪距差分定位中若干问题的探讨[J].全球定位系统,2010,2:22-25.
[18]王广运,郭秉义,李洪涛.差分GPS定位技术与应用[M].北京:电子工业出版社,1996.
[19]张伟.虚拟参考站(VRS)系统的建设与研究[D].硕士论文,吉林大学,2008.
[20]蔡建忠,张志勇.实时动态定位技术在土地勘测工作中的应用[J].测绘通报,2003,5:32-34.
[21] Ulrich Vollath,Alois Buecherl.Multi-base RTK Positioning Using Virtual Reference Stations,ION GPS2000:19-22.
[22]杨洋,虚拟参考站(VRS)技术及其精度评定[D].硕士学位论文,西南交通大学,2007.
[23] Hu G. R.khoo H. S., Goh P. C., Peformance of SingaPore Integrated Multiple Reference Station Network(SIMRSN) for RTK positioning,GpS Solutions.2002,6(1):65-71.
[24] Günther RETSCHER, Accuracy Performance of Virtual Referenee Station(VRS) Networks,Jouranl of Global Positioning Systems.2002,1(1):40-47.
[25] Herbert Landau,Ulrich Vollath,Xiaoming Chen,Virtual Reference Station Systems Journal of Global Positioning System.2002:137-143.
[26] A Study on GPS/GLONASS Multiple Reference Station Techniques for Precise Real-Time Carrier Phase-Based Positioning,School of Surveying and Spatial Information Systems,the Uni-Versity of New South Wales,ION GPS 2001:11-14.
[27]史先领,张书毕.网络RTK中几种实用技术的分析比较[J].海洋测绘,2006,9:75-78.
[28]杨小军.虚拟参考站(VRS)技术与差分改正信息的研究[D].硕士论文,西南交通大学,2005.
[29] Raquet J F,Lachapelle G.RTK Positioning with Multiple Reference Stations[J].GPS World,2001,12(4):33-48.
[30]高星伟.GPS/GLONASS网络RTK算法研究与程序实现[D].武汉:武汉大学,2002.
[31]唐卫明.PowerNetwork软件关键技术介绍和性能分析[J].武汉大学:信息科学版,2008,33(8):868-871.
[32]周乐韬.连续运行参考站网络实时动态定位理论、算法和系统实现[D].硕士论文,西南交通大学,2007.
[33]刘彦芳,何建国等.几种网络RTK技术的比较分析[J].地理空间信息,2009,4(7):89-92.
[34]张成军.虚拟参考站误差分析与算法研究[D].硕士论文,解放军信息工程大学,2005.
[35]吴俐民,丁仁军,李凤霞.GPS参考站系统原理与应用[M].成都:西南交通大学出版社,2008.
[36]朱祥维,肖华等.卫星钟差预报的Kalman算法及其性能分析[J].宇航学报,2008,5:966-970.
[37]赵刚,张晶.GPS测量中的误差分析及减弱和消除误差的方法[J].井冈山学院学报(自然科学),2007,8:28-30.
[38]谢世杰,韩明锋.论电离层对GPS定位的影响[J].测绘工程,2000,3:9-15.
[39]西南交通大学测量工程系GPS研发中心,基于Internet的网络GPS定位理论研究与系统开发,2005.
[40]章红平,平劲松等.电离层延迟改正模型综述[J].天文学进展,2003,3(1):16-26.
[41]余明,郭际明,过静君.GPS电离层延迟Klobuchar模型与双频数据解算值的比较与分析[J].测绘通报,2004(6):5-8.
[42] A.M.Meza,C.A.Brunini,W.Bosch,etc.Comparing vertical total electron content from GPS,Bent and IRI models with TOPEX-poseidon[J].Advanced Space Research,2002,30(2):401-406.
[43]吴雨航,陈秀万等.电离层延迟修正方法评述[J].全球定位系统,2008(2):1-5.
[44] D.Bilitza.IRI:An international rawer initiative[J].Advance Space Research,1995,15(2):7-10.
[45]刘经南,陈俊勇,张燕平等.广域差分GPS原理和方法[M].北京:测绘出版社,1999.
[46]王解先.GPS精密定轨定位[M].上海:同济大学出版社,1997.
[47]刘大杰,施一民,过静珺.全球定位系统(GPS)的原理与数据处理[M].上海:同济大学出版社,1997.
[48] Hopfiled H.S. Two-quartic Tropospheric Refractivity Profile for Correcting Satellite Data[J].Journal of Geophysical Research,1969,74(17):4487-4499.
[49] Saastamoinen J.Contributions to the Theory of Atmospheric Refraction[J].Bulletin Geodesique,1973:13-34.
[50] BAR-SEVER Y E,KROGER P M.Strategies for GPS-based estimates of troposphere delay[C]//The 9th International Technical Meeting of the Satellite Division of the Institute of Navigation,Missouri,1996:128-132.
[51]王新龙,李亚峰.GPS定位中4种对流层延迟修正模型适应性分析[J].电光与控制,2008,11:5-9.
[52] Davis,J.L.,T.A.Herring,I.I.Shapiro,A.E.E.Rogers,G.Elgered.Geodesy by radio interferometry:Effects of atmospheric modeling errors on estimates of baseline length[J].Radio Science,1985(20):1593-1607.
[53]陈芳,高永梅,张玉.GPS测量误差中关于对流层延迟的探讨[J].西部探矿工程,2005(3).
[54]常庆生,唐四元,常青.GPS测量的误差及精度控制[J].测绘通报,2000,4:13-15.
[55]王晓强.GPS测量中多路径误差的影响[J].地壳形变与地震,2000,1:56-59.
[56]万进桃,包海.利用平稳时间序列模拟接收机钟误差[J].测绘工程,2009,2(1):11-13.
[58]李军,王继业.东北亚地区GPS观测数据质量检测和分析[J].武汉大学学报.信息科学版,2006,31(3):209~212.
[59]李克恭,牛岸英等.CGCS2000对现有地图使用精度影响分析[J].矿山测量,2010,6(2):17-19.
[60]张华海,王宝山等.应用大地测量学[M].徐州:中国矿业大学出版社,2008.