城市勘测
城市勘測
성시감측
URBAN GEOTECHNICAL INVESTIGATION & SURVEYING
2015年
2期
83-85
,共3页
GNSS%高层建筑%形变监测%CORS%卡尔曼滤波
GNSS%高層建築%形變鑑測%CORS%卡爾曼濾波
GNSS%고층건축%형변감측%CORS%잡이만려파
GNSS%high-rise buildings%deformation Monitoring%CORS%kalman filter
主要研究了相对定位数学模型和数据预处理方法,分析了GNSS观测的主要误差源及处理办法,建立了Kal-man滤波的实时参数估计方法和模糊度固定解算技术;研究了基于Kalman滤波的形变信息提取技术,建立了Kalman滤波平滑降噪数学模型,对基于不同平滑降噪因子的平滑效果进行了分析;以天津悦雅国际某高层建筑监测项目为例,结合天津市二等水准成果和天津CORS站点稳定性分析成果,验证基于CORS的高层建筑物三维形变监测方法的正确性。
主要研究瞭相對定位數學模型和數據預處理方法,分析瞭GNSS觀測的主要誤差源及處理辦法,建立瞭Kal-man濾波的實時參數估計方法和模糊度固定解算技術;研究瞭基于Kalman濾波的形變信息提取技術,建立瞭Kalman濾波平滑降譟數學模型,對基于不同平滑降譟因子的平滑效果進行瞭分析;以天津悅雅國際某高層建築鑑測項目為例,結閤天津市二等水準成果和天津CORS站點穩定性分析成果,驗證基于CORS的高層建築物三維形變鑑測方法的正確性。
주요연구료상대정위수학모형화수거예처리방법,분석료GNSS관측적주요오차원급처리판법,건립료Kal-man려파적실시삼수고계방법화모호도고정해산기술;연구료기우Kalman려파적형변신식제취기술,건립료Kalman려파평활강조수학모형,대기우불동평활강조인자적평활효과진행료분석;이천진열아국제모고층건축감측항목위례,결합천진시이등수준성과화천진CORS참점은정성분석성과,험증기우CORS적고층건축물삼유형변감측방법적정학성。
In this paper,the relative positioning of the mathematical model and data preprocessing is studied,the main error sources and approaches GNSS observations is analysed for establishing real-time Kalman filter parameters esti-mation method and ambiguity fixing solving technology. The Kalman Filtering deformation information extraction technol-ogy is analysed,the establishment of Kalman filtering noise smoothing mathematical model is built,the smoothing the effect of different smoothing noise factor on the smoothing is analysed. Based on the GNSS data on a high building in Tianjin Yueya International,the mathematical model of the project and the correctness of the calculation software is veri-fied,and the Kalman filter smoothing noise factors is selected and some useful attempts and suggestions are concluded.