GPS变形监测平差计算及不确定度分析.PDFVIP

第 29 卷第 2 期 岩 土 力 学 Vol.29 No. 2 2008 年 2 月 Rock and Soil Mechanics Feb. 2008 文章编号：1000－7598 －(2008) 02 －562 －05 GPS 变形监测平差计算及不确定度分析 1 1 1 2 苗胜军 ，蔡美峰 ，任奋华 ，欧阳振华 1. 100083 2. 100080 全球定位系统（GPS）是一种全天候、高精度的连续定位系统，它以速度快、方法灵活多样、操作简便等优势被广 泛应用于工程测量和变形监测中。结合水厂铁矿 GPS 边坡变形监测实例，对 GPS 监测网的星历预报、基线向量平差计算、 网平差计算、结果及残差不确定度进行了细致分析研究，以验证GPS 技术在边坡变形监测中的可靠性和精度。 全球定位系统（GPS P228 A Adjustment and uncertainty analysis of GPS deformation monitoring 1 1 1 2 MIAO Sheng-jun , CAI Mei-feng , REN Fen-hua , OUYANG Zhen-hua (1. School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China ； 2. Institute of Mechanics, The Chinese Academy of Sciences, Beijing 100080, China) Abstract: As an all-weather and high precision continuous positioning system, the global positioning system(GPS) is widely applied to engineering measurement and deformation monitoring because of its speediness, agility and operability. In combination with practice, occupation planning, baseline vector calculating, network adjustment results and residential uncertainty of the deformation monitoring network are analyzed and studied in detail. The reliability and accuracy of GPS monitoring for slope deformation are verified. Key words: GPS; deformation monitoring ; baseline vector ; adjustment ; uncertainty 1 2 我国很多大中型露天矿山已经或即将进入深凹 卫星空间分布不仅决定了监测速度，而且决定 开采，随着矿山边坡的加高、加陡，变形破坏时有 着监测的几何精度