利用PPP固定解提取桥梁变形的可行性分析
摘要
研究了基于整数钟模糊度固定的方法,采用CNES中心的产品,以RTKLIB为平台初步实现了PPP固定解。将PPP固定解用于提取桥梁变形信息,进行桥梁安全监测。通过对某桥梁数据的事后差分动态解算、PPP浮点解解算和PPP固定解解算的结果进行分析和比对,表明PPP固定解较PPP浮点解的精度和稳定性有大幅提高,能够提取桥梁的变形量,正确识别桥梁振动频率,初步验证了其可行性。
引文
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[5]李宏男,伊廷华,王国新.GPS在结构健康监测中的研究与应用进展[J].自然灾害学报,2004,13(6):122-130.
[6]ZUMBERGE J F,HEFLIN M B,JEFFERSON D C,et al.Precise Point Positioning for the Efficient and Robust Analysis of GPS Data from Large Networks[J].Journal of Ggeophysics Research,1997,102(B3):5005-5018.
[7]张小红,李盼,左翔.固定模糊度的精密单点定位几何定轨方法及结果分析[J].武汉大学学报:信息科学版,2013,38(09):1009-1013.
[8]GE M,GENDT G,ROTHACHER M,et al.Resolution of GPS Carrier-Phase Ambiguities in Precise Point Positioning(PPP)with Daily Observations[J].Journal of Geodesy,.2008,82(7):389-399.
[9]LAURICHESSE D,MERCIER F,BERTHIAS J P,et al.Integer Ambiguity Resolution on Undifferenced GPS Phase Measurements and Its Application to PPP and Satellite Precise Orbit Determination[J].Navigation,2009,56(2):135-149.
[10]GENG J H,TEFERLE F N,SHI C,et al.Ambiguity Resolution in Precise Point Positioning with Hourly Data[J].GPS Ssolutions,2009,13(4):263-270.
[11]Precise Point Positioning with Integer and Zero-difference Ambiguity Resolution Demonstrator[EB/OL].[2014-03-05].http:∥www.ppp-wizard.net/index.html.
[2]GUO J,GE S J.Research of Displacement and Frequency of Tall Building under Wind Load Using GPS[C]∥Proceedings of ION GPS 1997.Kansas City,MO:[s.n.],1997:1385-1388.
[3]李征航,吴云孙,李振洪,等.隔河岩大坝外观变形数据的处理和分析[J].武汉测绘科技大学学报,2000,25(6):482-484.
[4]王堪,游新兆,王启梁.用全球定位系统(GPS)监测青藏高原地壳形变[J].地震地质,1996,18(2):97-103.
[5]李宏男,伊廷华,王国新.GPS在结构健康监测中的研究与应用进展[J].自然灾害学报,2004,13(6):122-130.
[6]ZUMBERGE J F,HEFLIN M B,JEFFERSON D C,et al.Precise Point Positioning for the Efficient and Robust Analysis of GPS Data from Large Networks[J].Journal of Ggeophysics Research,1997,102(B3):5005-5018.
[7]张小红,李盼,左翔.固定模糊度的精密单点定位几何定轨方法及结果分析[J].武汉大学学报:信息科学版,2013,38(09):1009-1013.
[8]GE M,GENDT G,ROTHACHER M,et al.Resolution of GPS Carrier-Phase Ambiguities in Precise Point Positioning(PPP)with Daily Observations[J].Journal of Geodesy,.2008,82(7):389-399.
[9]LAURICHESSE D,MERCIER F,BERTHIAS J P,et al.Integer Ambiguity Resolution on Undifferenced GPS Phase Measurements and Its Application to PPP and Satellite Precise Orbit Determination[J].Navigation,2009,56(2):135-149.
[10]GENG J H,TEFERLE F N,SHI C,et al.Ambiguity Resolution in Precise Point Positioning with Hourly Data[J].GPS Ssolutions,2009,13(4):263-270.
[11]Precise Point Positioning with Integer and Zero-difference Ambiguity Resolution Demonstrator[EB/OL].[2014-03-05].http:∥www.ppp-wizard.net/index.html.
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