高边坡变形监测电磁波测距边长气象改正方法  

Study on atmospheric correction methods of electromagnetic distance measurement in high slope deformation monitoring

作　　者：李建川 张宇 史波 LI Jianchuan;ZHANG Yu;SHI Bo(Changjiang Special Information Technology Engineering Co.,Ltd,Wuhan430010,China)

机构地区：[1]长江空间信息工程有限公司(武汉),湖北武汉430010

出　　处：《人民长江》2018年第4期56-60,共5页Yangtze River

摘　　要：在采用测量机器人对峡谷地区高边坡进行自动化监测时,电磁波测距边长气象改正代表性误差易受峡谷地区瞬息万变的气象条件影响,故合理的气象改正方法不仅可以提高工作效率、减轻劳动强度,还可以提高监测成果的精度和可靠性。采用理论与实验研究相结合的方法,以溪洛渡水电站边坡监测为例,对峡谷地区电磁波测距影响理论和气象改正的传统方法、似差分改正法进行了实验研究,提出了基于统计气象参数的模型改正法并对其可用性进行了实验验证。结果表明:该方法克服了似差分改正因距离和高差带来的误差,降低了现场采集气象元素的劳动强度,为自动化监测的气象改正提供了有效解决方法。Automated monitoring by the measuring robot in high slope of valley area is widely used at present,but the atmospheric correction error of electromagnetic distance measurement is easily affected by the quickly-changing weather in a valley.Therefore,reasonable atmospheric correction not only improves the working efficiency but also increases the accuracy and reliability of monitoring results.Taking the slope monitoring program at Xiluodu Hydropower Station as an example,we firstly analyse the theory of electromagnetic distance measurement,and also study the traditional atmospheric correction and quasi-difference correction method,and we propose a new correction method based on statistics of atmospheric parameters.The verified results show that the new method overcomes the adverse effect of distance and height difference on quasi-differential correction,reduce the labor intensity of field meteorological elements collected,and provide an effective solution for meteorological correction of automatic monitoring.

关 键 词：高边坡变形监测 电磁波测距 气象改正 测量机器人 峡谷 

分 类 号：TV698[水利工程—水利水电工程]