|
- 2016
基于北斗三频的实时变形监测数据处理
|
Abstract:
针对观测条件较差时,基于双频观测值的传统变形监测数据处理算法无法快速、可靠地固定原始频点模糊度的局限性,分析了GPS和北斗导航系统BDS不同解算模式下的单历元模糊度固定成功率,提出了基于北斗三频观测值的变形监测数据处理算法。该算法采用三频模糊度解算(three-carrier ambiguity resolution,TCAR)逐次固定超宽巷、宽巷、原始频点模糊度;在不能可靠固定原始频点模糊度时,通过观测值域恒星日滤波削弱宽巷多路径的影响,采用模糊度固定宽巷进行坐标解算。利用实测数据进行检验后的试算结果表明:TCAR单历元模糊度固定成功率较双频模式有了较大提高,但在观测条件较差时难以保证较高的成功率;而宽巷模糊度固定可达到100%的成功率;经观测值域恒星日滤波后宽巷固定解坐标水平方向均方根(root mean square,RMS)可达到7 mm
[1] | Chen Dezhong, Ye Shirong, Liu Yanyan,et al. Applied Analysis of GPS Multipath Errors Based on Observation Domain[J]. <em>Geomatics and Information Science of Wuhan University</em>, 2014, 39(2):147-151(陈德忠,叶世榕,刘炎炎,等.基于观测值域的GPS多路径误差应用分析[J].武汉大学学报·信息科学版,2014,39(2):147-151) |
[2] | Ye Shirong, Chen Dezhong. Carrier Phase Multipath Mitigation for Beidou Navigation Satellite System[J]. <em>GPS Solutions</em>, 2015, 19(4):545-557 |
[3] | Ince C D, Sahin M. Real-Time Deformation Monitoring with GPS and Kalman Filter[J]. <em>Earth Planets and Space</em>, 2000, 52(10):837-840 |
[4] | Feng Yanming. GNSS Three Carrier Ambiguity Resolution Using Ionosphere-reduced Virtual Signals[J]. <em>Journal of Geodesy</em>, 2008, 82(12):847-862 |
[5] | Nickitopoulou A, Protopsalti K, Stiros S. Monitoring Dynamic and Quasi-Static Deformations of Large Flexible Engineering Structures with GPS:Accuracy, Limitations and Promises[J]. <em>Engineering Structures</em>, 2006, 28(10):1471-1482 |
[6] | Wang Xinzhou, Hua Xianghong, Qiu Lei. A New Method for Integer Ambiguity Resolution in GPS Deformation Monitoring[J]. <em>Geomatics and Information Science of Wuhan University</em>, 2007, 32(1):24-26(王新洲,花向红,邱蕾.GPS变形监测中整周模糊度解算的新方法[J].武汉大学学报·信息科学版,2007,32(1):24-26) |
[7] | Zhu Huizhong, Gao Xingwei, Bei Jinzhong, et al. An Algorithm of GPS Ambiguity Resolution on Single-Epoch[J]. <em>Science of Surveying and Mapping</em>, 2011, 36(4):9-11(祝会忠,高星伟,秘金钟,等.一种GPS整周模糊度单历元解算方法[J].测绘科学,2011,36(4):9-11) |
[8] | Liu Chao, Wang Jian, Hu Hong, et al. Research on Real-Time Correcting Model of Multipath in GPS Dynamic Deformation Monitoring[J]. <em>Geomatics and Information Science of Wuhan University</em>, 2010, 35(4):481-485(刘超,王坚,胡洪,等.动态变形监测多路径实时修正模型研究[J].武汉大学学报·信息科学版,2010,35(4):481-485) |
[9] | Yu Xuexiang, Xu Shaoquan, Lv Weicai. The Research of Single Epoch Algorithm for the GPS Deformation Monitor Information[J]. <em>Acta Geodaetica et Cartographica Sinica,</em> 2002, 31(2):123-127(余学祥,徐绍铨,吕伟才.GPS变形监测信息的单历元解算方法研究[J]. 测绘学报, 2002, 31(2):123-127) |
[10] | Sun Hongxing, Li Deren. GPS Ambiguity Resolution Using Single Epoch Data[J]. <em>Acta Geodaetica et Cartographica Sinica, </em>2003, 32(3):208-212(孙红星, 李德仁. 使用双频相关法单历元解算GPS整周模糊值[J]. 测绘学报, 2003, 32(3):208-212) |
[11] | Tang Weiming, Sun Hongxing, Liu Jingnan. Ambiguity Resolution of Single Epoch Single Frequency Data with Baseline Length Constraint Using LAMBDA Algorithm[J]. <em>Geomatics and Information Science of Wuhan University</em>, 2005, 30(5):444-446(唐卫明,孙红星,刘经南.附有基线长度约束的单频数据单历元LAMBDA方法整周模糊度确定[J].武汉大学学报·信息科学版,2005,30(5):444-446) |
[12] | Chen Y, Lutes J. Development of the Methodology for Single Epoch GPS Deformation Monitoring[J]. <em>Journal of Wuhan Technical University of Surveying and Mapping</em>, 1998, 23(4):324-328(陈永奇, James Lutes. 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):324-328) |
[13] | Lovse J W, Teskey W F, Lachapelle G, et al. Dynamic Deformation Monitoring of Tall Structure Using GPS Technology[J]. <em>Journal of Surveying Engineering</em>, 1995, 121(1):35-40 |
[14] | Grejner-Brzezinska D A, Kashani I, Wielgosz P, et al. Efficiency and Reliability of Ambiguity Resolution in Network-Based Real-Time Kinematic GPS[J]. <em>Journal of Surveying Engineering</em>, 2007, 133(2):56-65 |
[15] | Liu Ning,Xiong Yongliang, Wang Dejun, et al. A New Algorithm for Solving GPS Integer Ambiguity Using Single Epoch Data[J]. <em>Geomatics and Information Science of Wuhan University,</em> 2013, 38(3):291-294(刘宁,熊永良,王德军,等.一种新的GPS整周模糊度单历元求解算法[J].武汉大学学报·信息科学版,2013,38(3):291-294) |
[16] | Forssell B, Martin-Neira M, Harrisz R A. Carrier Phase Ambiguity Resolution in GNSS-2[C]. International Technical Meeting of the Satellite Division of the Institute of Navigation, Kansas City, 1997 |