适用于单频GPS用户的周跳探测方法

高书亮; 黄智刚; 李锐

适用于单频GPS用户的周跳探测方法

北京航空航天大学电子信息工程学院, 北京 100191

基金项目: 国家973重点基础研究发展规划资助项目(2010CB731800); 国家自然科学基金资助项目(60879012/F01); 国家863计划资助项目(2006AA12A013,2009AA12Z329)

详细信息

作者简介:
高书亮(1982-),男,陕西汉中人,博士生,gslb-007@163.com.

中图分类号: P 228.41
计量
- 文章访问数: 2951
- HTML全文浏览量: 135
- PDF下载量: 790
- 被引次数: 0
出版历程
- 收稿日期: 2010-04-23
- 网络出版日期: 2011-08-30

Cycleslips detecting approach for single frequency GPS Users

School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 针对单频GPS(Global Position System)用户的载波相位周跳探测问题,在传统的载波相位和伪距组合方法的基础上提出了一种新的周跳探测方法.该方法将载波相位和码伪距的组合观测量在历元间做差形成差分序列,以此构造实时的周跳探测量,由于该探测量易受观测噪声的影响,因此使用仰角指数模型作为经验模型对于测距噪声进行估计,基于假设检验的方法,通过对该探测量是否超过相应的检测门限来判断是否存在周跳.在实测的GPS观测数据基础上,对这一方法进行了验证,结果表明:相对于传统的周跳探测方法,该方法可以更加及时、准确地发现较小的周跳,对于单频的GPS用户具有较好的适应性.
- 周跳 /
- 探测 /
- 假设检验 /
- 仰角指数模型
Abstract: Aiming at the detection of the cycle slips in the carrier phase measurements for the single-frequency global pesition system(GPS) users, a novel algorithm was proposed based on the conventional method with the combination of the pseudo range and the carrier phase. The pseudo range and the carrier phase were differentiated between the adjacent epochs and a related detection sequence could be constructed. The real-time estimation of the variance for the detection sequence was accomplished with the elevation exponential model as the conventional method was susceptible to the measurement noise. Finally,a detection variable was formed and the existence of the cycle slips were judged by the comparison between the detection variable and the threshold which is deduced from the hypothetic check theory.The algorithm was verified by the real GPS measurements and the results indicate that the small cycle slips can be detected with the algorithm timely.Moreover,the algorithm is available for the single-frequency GPS users.
- cycle slips /
- detection /
- hypothetic check /
- elevation exponential model

HTML全文

参考文献(1)

[1] 方荣新,施闯,魏娜,等.GPS数据质量控制中实时周跳探测研究[J].武汉大学学报:信息科学版,2009,34(9):1094-1097 Fang Rongxin,Shi Chuang,Wei Na,et al.Real-time cycle detection for quality control of GPS measurements[J].Geomatics and Information Science of Wuhan University,2009,34(9):1094-1097(in Chinese) [2] Sunil B Bisnath.Efficient,automated cycle-slips correction of dual-frequency kinematic GPS data //ION GPS-2000.Salt Lake City:Utah,2000 [3] 熊伟,伍岳,孙振冰,等.多频数据组合在周跳探测和修复上的应用[J].武汉大学学报:信息科学版,2007,32(4) :319-320 Xiong Wei,Wu Yue,Sun Zhenbing,et al.Application of multi-frequency combination observation in cycle slip detection and restoration [J].Geomatics and Information Science of Wuhan University,2007,32(4) :319-320(in Chinese) [4] 王爱生,欧吉坤.无几何距离组合联合MW组合探测周跳的改进算法[J].数据采集与处理,2007,22(4):468-474 Wang Aisheng,Ou Jikun.Modified algorithm for detecting cycle slips using geometry-free combination and melbourne-wbbena combination[J].Journal of Data Acquisition and Processing,2007,22(4):468-474(in Chinese) [5] Comolbo Oscar L,Bhapkar Udayan V,Evans Alan G.Inertial-aided cycle-slip detection/correction for precise,long-baseline kinematics GPS //ION GPS’99.Nashville,TN: ,1999:1915-1921 [6] 贾沛璋,吴连大.单频GPS周跳检测与估计算法[J].天文学报,2001,42(2):192-197 Jia Peizhang,Wu Lianda.An algorithm of detection and estimation cycle slips in the single-freqency GPS[J].Acta Astronomica Sinica,2001,42(2):192-197(in Chinese) [7] Chao Yichung.Real time implementation of the wide area augmentation system for the global positioning system with an emphasis on ionospheric modeling .Stanford,USA:Department Aeronautics and Astronautics,Stanford University,1998 [8] 张成军,许其凤,李作虎.对伪距/相位组合量探测与修复周跳算法的改进[J].测绘学报,2009,38(5):402-407 Zhang Chengjun,Xu Qifeng,Li Zuohu.Improving method of cycle slip detection and correction base d on combination of GPS pseudo range and carrier phase observations[J].Acta Geodaetica et Cartographica Sinica,2009,38(5):402-407(in Chinese) [9] 韩保民,欧吉坤,曲国庆.GPS观测数据的模拟研究[J].武汉大学学报:信息科学版,2005,30(3):246-250 Han Baomin,OU Jikun,Qu Guoqing.GPS observation simulation[J].Geomatics and Information Science of Wuhan University,2005,30(3):246-250(in Chinese) [10] Federal Aviation Administration.Specification for the wide area augmentation system(WAAS) .FAA-E-2892B,2008 [11] 盛骤,谢世千,潘乘毅.概率论与数理统计[M].北京:高等教育出版社,2008 Sheng Zhou,Xie Shiqian,Pan Chengyi.Probability theory and mathematical statistics[M].Beijing:Higher Education Press,2008(in Chinese)

施引文献

资源附件(0)

访问统计