利用单频实时动态定位技术监测小金县春厂坝滑坡
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摘要
为解决相对定位算法中载波相位模糊度难以被固定的问题,提出一种单历元阻尼LAMBDA算法,从而实现全球卫星导航系统(GNSS)实时动态定位技术。基于BDS/GPS单频实时动态定位核心算法,研发一套北斗智慧云变形监测系统。重点介绍了单历元阻尼LAMBDA算法的实现过程和变形监测系统的工作流程,该系统具有硬件成本低、实时高精度位移监测等功能特点,适用于滑坡预警工作。变形监测系统应用于小金县春厂坝滑坡监测,在连续监测过程中,该系统于2018年2月26日成功预警了滑坡事件。本次滑坡事件没有造成人员和重大经济损伤,监测预警保障了当地居民的生命财产安全。
In order to solve the problem that carrier phase ambiguity is difficult to fix in relative positioning algorithm,a single epoch damped LAMBDA algorithm to realize GNSS real-time dynamic positioning technology is proposed. An intelligent deformation monitoring system is developed based on the core single frequency real time kinematic( RTK) algorithm. The implementation of single epoch damped LAMBDA algorithm and the workflow of deformation monitoring system is focused on. The system has the characteristics of low hardware cost,real-time and highprecision in displacement monitoring,and is suitable for landslide early warning. This deformation monitoring system is applied to monitor Chunchang dam landslide in Xiaojin county. During continuous monitoring,the system successfully warned landslide events on February 26,2018. The landslide did not cause any serious economic damage to people,which means monitoring and early warning ensured the safety of life and property of local residents.
In order to solve the problem that carrier phase ambiguity is difficult to fix in relative positioning algorithm,a single epoch damped LAMBDA algorithm to realize GNSS real-time dynamic positioning technology is proposed. An intelligent deformation monitoring system is developed based on the core single frequency real time kinematic( RTK) algorithm. The implementation of single epoch damped LAMBDA algorithm and the workflow of deformation monitoring system is focused on. The system has the characteristics of low hardware cost,real-time and highprecision in displacement monitoring,and is suitable for landslide early warning. This deformation monitoring system is applied to monitor Chunchang dam landslide in Xiaojin county. During continuous monitoring,the system successfully warned landslide events on February 26,2018. The landslide did not cause any serious economic damage to people,which means monitoring and early warning ensured the safety of life and property of local residents.
引文
1唐亚明,张茂省,薛强,等.滑坡监测预警国内外研究现状及评述[J].地质论评,2012,58(3):533-541Tang Yaming,Zhang Maosheng,Xue Qiang,et al. Landslide monitoring and early-warning:an overview[J]. Geological Review,2012,58(3):533-541
2 闫惠,严颂华,陈能成,等.利用GPS数据研究江西区域电离层对台风“潭美”的响应[J].科学技术与工程,2018,18(6):14-21Yan Hui,Yan Songhua,Chen Nengcheng,et al. Research on the response of Jiangxi ionosphere to typhoon “Trami”by GPS data[J].Science Technology and Engineering,2018,18(6):14-21
3 Lovse J W,Teskey W F,Lachapelle G,et al. Dynamic deformation monitoring of tall structure using GPS technology[J]. Journal of Surveying Engineering,1995,121(1):35-40
4 陈永奇,Lutes James.单历元GPS变形监测数据处理方法的研究[J].武汉测绘科技大学学报,1998,23(4):324-328Chen Yongqi,Lutes J. Development of the methodology for single epoch GPS deformation monitoring[J]. Journal of Wuhan Technical University of Surveying and Mapping,1998,23(4):324-363
5 王守华,周团,纪元法,等.基于GPS载波相位的边坡变形监测方法[J].科学技术与工程,2017,17(25):84-88Wang Shouhua,Zhou Tuan,Ji Yuanfa,et al. A method of slop deformation monitoring based on GPS carrier phase[J]. Science Technology and Engineering,2017,17(25):84-88
6 姜卫平,刘鸿飞,刘万科,等.西龙池上水库GPS变形监测系统研究及实现[J].武汉大学学报(信息科学版),2012,37(8):949-952,1009Jiang Weiping,Liu Hongfei,Liu Wanke,et al. CORS development for Xilongchi dam deformation monitoring[J]. Geomatics and Information Science of Wuhan University,2012,37(8):949-952,1009
7 Teunissen P J G. The least-squares ambiguity decorrelation adjustment:a method for fast GPS integer ambiguity estimation[J]. Journal of Geodesy,1995(70):65-82
8 李征航,刘万科,楼益栋,等.基于双频GPS数据的单历元定向算法研究[J].武汉大学学报(信息科学版),2007,32(9):753-756Li Zhenghang,Liu Wanke,Lou Yidong,et al. Heading determination algorithm with single epoch dual-frequency GPS data[J]. Geomatics and Information Science of Wuhan University,2007,32(9):753-756
9 Horemu6 M,Sj9berg L. Rapid GPS ambiguity resolution for short and long baseline[J]. Journal of Geodesy,2002,76:381-391
10 刘根友,朱耀仲,韩保民. GPS单历元定位的阻尼LAMBDA算法[J].武汉大学学报(信息科学版),2004,29(3):195-197Liu Genyou,Zhu Yaozhong,Han Baomin. Damped LAMBDA algorithm for single epoch GPS positioning[J]. Geomatics and Information Science of Wuhan University,2004,29(3):195-197
11 刘根友,朱耀仲,周蓉生. GPS单历元定位新算法应用于滑坡监测[J],地震学报,2005,27(4):402-408Liu Genyou,Zhu Yaozhong,Zhou Rongsheng. A new approach of single epoch GPS positioning for landslide monitoring[J]. Acta Seismologica Sinica,2005,27(4):402-408
2 闫惠,严颂华,陈能成,等.利用GPS数据研究江西区域电离层对台风“潭美”的响应[J].科学技术与工程,2018,18(6):14-21Yan Hui,Yan Songhua,Chen Nengcheng,et al. Research on the response of Jiangxi ionosphere to typhoon “Trami”by GPS data[J].Science Technology and Engineering,2018,18(6):14-21
3 Lovse J W,Teskey W F,Lachapelle G,et al. Dynamic deformation monitoring of tall structure using GPS technology[J]. Journal of Surveying Engineering,1995,121(1):35-40
4 陈永奇,Lutes James.单历元GPS变形监测数据处理方法的研究[J].武汉测绘科技大学学报,1998,23(4):324-328Chen Yongqi,Lutes J. Development of the methodology for single epoch GPS deformation monitoring[J]. Journal of Wuhan Technical University of Surveying and Mapping,1998,23(4):324-363
5 王守华,周团,纪元法,等.基于GPS载波相位的边坡变形监测方法[J].科学技术与工程,2017,17(25):84-88Wang Shouhua,Zhou Tuan,Ji Yuanfa,et al. A method of slop deformation monitoring based on GPS carrier phase[J]. Science Technology and Engineering,2017,17(25):84-88
6 姜卫平,刘鸿飞,刘万科,等.西龙池上水库GPS变形监测系统研究及实现[J].武汉大学学报(信息科学版),2012,37(8):949-952,1009Jiang Weiping,Liu Hongfei,Liu Wanke,et al. CORS development for Xilongchi dam deformation monitoring[J]. Geomatics and Information Science of Wuhan University,2012,37(8):949-952,1009
7 Teunissen P J G. The least-squares ambiguity decorrelation adjustment:a method for fast GPS integer ambiguity estimation[J]. Journal of Geodesy,1995(70):65-82
8 李征航,刘万科,楼益栋,等.基于双频GPS数据的单历元定向算法研究[J].武汉大学学报(信息科学版),2007,32(9):753-756Li Zhenghang,Liu Wanke,Lou Yidong,et al. Heading determination algorithm with single epoch dual-frequency GPS data[J]. Geomatics and Information Science of Wuhan University,2007,32(9):753-756
9 Horemu6 M,Sj9berg L. Rapid GPS ambiguity resolution for short and long baseline[J]. Journal of Geodesy,2002,76:381-391
10 刘根友,朱耀仲,韩保民. GPS单历元定位的阻尼LAMBDA算法[J].武汉大学学报(信息科学版),2004,29(3):195-197Liu Genyou,Zhu Yaozhong,Han Baomin. Damped LAMBDA algorithm for single epoch GPS positioning[J]. Geomatics and Information Science of Wuhan University,2004,29(3):195-197
11 刘根友,朱耀仲,周蓉生. GPS单历元定位新算法应用于滑坡监测[J],地震学报,2005,27(4):402-408Liu Genyou,Zhu Yaozhong,Zhou Rongsheng. A new approach of single epoch GPS positioning for landslide monitoring[J]. Acta Seismologica Sinica,2005,27(4):402-408