利用三频数据组合探测不敏感周跳
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摘要
针对全球卫星导航系统(Global Navigation Satellite System, GNSS)信号中部分周跳难以探测的问题,在三维坐标系中分析了不敏感周跳的产生及分布,研究了探测阈值对不敏感周跳的影响,进而研究了多个组合量联合探测周跳的效果,提出了针对不敏感周跳的组合系数选取方法。该方法根据不敏感周跳的探测量构建组合系数的函数模型,在所有可能的三频无几何相位(geometry free combination, GF)组合系数中选取最敏感的组合系数,可探测3个频点上跳变量相近的不敏感周跳。北斗三频实测数据证实,多个GF组合有效提升了不敏感周跳的探测概率,数量以两个为宜,选取的组合量有效提升了不敏感周跳的探测概率。
For the issues of detecting insensitive cycle-slip in GNSS signals, this paper analyzes the generation and distribution of insensitive cycle-slip in three-dimensional coordinate system, researches the influence of the detection threshold on detecting insensitive cycle-slip, and then studies the effect of combined detection of combinations. A combination coefficient selection method is proposed for detecting insensitive cycle-slip. This method builds a function model based on the detection amount of combined coefficient, and screening the most sensitive combination coefficients. The method can detect insensitive cycle-slip with similar hop variables at three frequencies. As verified by the BeiDou triple-frequency measured data, multiple GF combinations effectively increase the detection probability of insensitive cycle-slip, and the appropriate number is two. The combination selected by proposed method effectively detect the manually added insensitive cycle-slip.
For the issues of detecting insensitive cycle-slip in GNSS signals, this paper analyzes the generation and distribution of insensitive cycle-slip in three-dimensional coordinate system, researches the influence of the detection threshold on detecting insensitive cycle-slip, and then studies the effect of combined detection of combinations. A combination coefficient selection method is proposed for detecting insensitive cycle-slip. This method builds a function model based on the detection amount of combined coefficient, and screening the most sensitive combination coefficients. The method can detect insensitive cycle-slip with similar hop variables at three frequencies. As verified by the BeiDou triple-frequency measured data, multiple GF combinations effectively increase the detection probability of insensitive cycle-slip, and the appropriate number is two. The combination selected by proposed method effectively detect the manually added insensitive cycle-slip.
引文
[1] Zhang Xiaohong,Li Pan.Benefits of the Third Frequency Signal on Cycle Correction [J].GPS Solutions,2016,20(3):451-461
[2] Zhang Xiaohong, He Xiyang. BDS Triple-Frequency Carrier-Phase Linear Combination Models and Their Characteristics[J]. Science China(Earth Scie-nces), 2015,45(5): 601-610(张小红,何锡扬.北斗三频相位观测值线性组合模型及特性研究[J]. 中国科学(地球科学),2015,45(5):601-610)
[3] Chen Dezhong,Ye Shirong,Zhou Wei,et al.A Double-Differenced Cycle Slip Detection and Repair Method for GNSS CORS Network[J].GPS Solutions,2015,19(3): 439-451
[4] Dai Z.Matlab Software for GPS Cycle-Slip Proces-sing[J].GPS Solutions,2012,16(2): 267-272
[5] Fan Shijie, Chen Guanxu, Liu Yanxiong, et al. Cycle-Slip Detection Methods for Dual-Frequency Un-difference Data at Low Elevation Angle[J]. Geomatics and Information Science of Wuhan University, 2016, 41(3): 310-315(范士杰,陈冠旭,刘焱雄,等.低高度角双频非差数据的周跳探测方法研究[J].武汉大学学报·信息科学版,2016,41(3):310-315)
[6] Banville S, Langley R B, Saito S, et al.Handling Cycle Slips in GPS Data During Ionospheric Plasma Bubble Events[J]. Radio Science,2010,45(6): 415-430
[7] Dai Z, Knedlik S.Instantaneous Triple-Frequency GPS Cycle-Slip Detection and Repair[J]. International Journal of Navigation and Observation,2009,1(1):1-15
[8] de Lacy M C, Reguzzoni M, Sanso F.Real-Time Cycle Slip Detection in Triple-Frequency GNSS[J].GPS Solutions,2011,15(3): 353-362
[9] Huang Lingyong, Song Lijie, Wang Yan, et al. BeiDou Triple-Frequency Geometry-Free Phase Combination for Cycle-Slip Detection and Correction[J]. Acta Geodaetica et Cartographica Sinica, 2012, 41(5): 763-768(黄令勇, 宋力杰, 王琰, 等. 北斗三频无几何相位组合周跳探测与修复[J]. 测绘学报, 2012, 41(5): 763-768)
[10] Xiong Wei, Wu Yue, Sun Zhenbing, et al. Application of Muti-frequency Combination Observation in Cycle-Slip Detection and Restoration[J]. Geomatics and Information Science of Wuhan University, 2007, 32(4): 319-322(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): 319-322)
[11] Zhao Qile,Sun Binzi,Dai Zhiqiang, et al.Real-Time Detection and Repair of Cycle Slips in Triple-Frequency GNSS Measurements[J].GPS Solutions,2015,19(3):381-391
[12] Liu Zhizhao.A New Automated Cycle Slip Detetion and Repair Method for Single Dual-Frequency GPS Receiver[J]. Journal of Geodesy,2011,85(3): 171-183
[13] Wu Jizhong, Shi Chuang,Fang Rongxin. Improving the Single Station Data Cycle-Slip Detection Approach TurboEdit[J]. Geomatics and Information Science of Wuhan University, 2011, 36(1): 29-33(吴继忠, 施闯, 方荣新. TurboEdit 单站 GPS 数据周跳探测方法的改进[J]. 武汉大学学报·信息科学版, 2011, 36(1): 29-33)
[14] Simon B, Langeley R B.Mitigating the Impact of Io-nospheric Cycle Slips in GNSS Observations[J].Journal of Geodesy,2013,87(2):179-193
[2] Zhang Xiaohong, He Xiyang. BDS Triple-Frequency Carrier-Phase Linear Combination Models and Their Characteristics[J]. Science China(Earth Scie-nces), 2015,45(5): 601-610(张小红,何锡扬.北斗三频相位观测值线性组合模型及特性研究[J]. 中国科学(地球科学),2015,45(5):601-610)
[3] Chen Dezhong,Ye Shirong,Zhou Wei,et al.A Double-Differenced Cycle Slip Detection and Repair Method for GNSS CORS Network[J].GPS Solutions,2015,19(3): 439-451
[4] Dai Z.Matlab Software for GPS Cycle-Slip Proces-sing[J].GPS Solutions,2012,16(2): 267-272
[5] Fan Shijie, Chen Guanxu, Liu Yanxiong, et al. Cycle-Slip Detection Methods for Dual-Frequency Un-difference Data at Low Elevation Angle[J]. Geomatics and Information Science of Wuhan University, 2016, 41(3): 310-315(范士杰,陈冠旭,刘焱雄,等.低高度角双频非差数据的周跳探测方法研究[J].武汉大学学报·信息科学版,2016,41(3):310-315)
[6] Banville S, Langley R B, Saito S, et al.Handling Cycle Slips in GPS Data During Ionospheric Plasma Bubble Events[J]. Radio Science,2010,45(6): 415-430
[7] Dai Z, Knedlik S.Instantaneous Triple-Frequency GPS Cycle-Slip Detection and Repair[J]. International Journal of Navigation and Observation,2009,1(1):1-15
[8] de Lacy M C, Reguzzoni M, Sanso F.Real-Time Cycle Slip Detection in Triple-Frequency GNSS[J].GPS Solutions,2011,15(3): 353-362
[9] Huang Lingyong, Song Lijie, Wang Yan, et al. BeiDou Triple-Frequency Geometry-Free Phase Combination for Cycle-Slip Detection and Correction[J]. Acta Geodaetica et Cartographica Sinica, 2012, 41(5): 763-768(黄令勇, 宋力杰, 王琰, 等. 北斗三频无几何相位组合周跳探测与修复[J]. 测绘学报, 2012, 41(5): 763-768)
[10] Xiong Wei, Wu Yue, Sun Zhenbing, et al. Application of Muti-frequency Combination Observation in Cycle-Slip Detection and Restoration[J]. Geomatics and Information Science of Wuhan University, 2007, 32(4): 319-322(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): 319-322)
[11] Zhao Qile,Sun Binzi,Dai Zhiqiang, et al.Real-Time Detection and Repair of Cycle Slips in Triple-Frequency GNSS Measurements[J].GPS Solutions,2015,19(3):381-391
[12] Liu Zhizhao.A New Automated Cycle Slip Detetion and Repair Method for Single Dual-Frequency GPS Receiver[J]. Journal of Geodesy,2011,85(3): 171-183
[13] Wu Jizhong, Shi Chuang,Fang Rongxin. Improving the Single Station Data Cycle-Slip Detection Approach TurboEdit[J]. Geomatics and Information Science of Wuhan University, 2011, 36(1): 29-33(吴继忠, 施闯, 方荣新. TurboEdit 单站 GPS 数据周跳探测方法的改进[J]. 武汉大学学报·信息科学版, 2011, 36(1): 29-33)
[14] Simon B, Langeley R B.Mitigating the Impact of Io-nospheric Cycle Slips in GNSS Observations[J].Journal of Geodesy,2013,87(2):179-193