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工程结构物的抛物面方程回归计算
引用本文:程效军,顾孝烈.工程结构物的抛物面方程回归计算[J].同济大学学报(自然科学版),2009,37(9).
作者姓名:程效军  顾孝烈
作者单位:1. 同济大学,测量与国土信息工程系,上海,200092;现代工程测量国家测绘局重点实验室,上海,200092
2. 同济大学,测量与国土信息工程系,上海,200092
基金项目:国家"十一五"科技支撑计划资助项目 
摘    要:抛物面工程结构物的施工安装、建成后的精度鉴定和变形监测需要用高精度的电子全站仪测定抛物面上许多离散点的三维坐标.据此,通过抛物面口的平面方程回归、平面的法向量计算、坐标变换、圆心拟合、坐标轴平移、抛物面方程回归等一系列运算,得到抛物面方程式和焦距,以满足对抛物面工程结构物的施工安装、精度鉴定和变形监测的要求.

关 键 词:抛物面结构  施工安装  变形监测  坐标变换  回归计算
收稿时间:2008/5/26 0:00:00
修稿时间:6/15/2009 3:46:17 PM

Regressive Adjustment of Paraboloid Equation for Engineering Construction
CHENG Xiaojun and GU Xiaolie.Regressive Adjustment of Paraboloid Equation for Engineering Construction[J].Journal of Tongji University(Natural Science),2009,37(9).
Authors:CHENG Xiaojun and GU Xiaolie
Institution:Department of Surveying and Geo-Informatics, Tongji University
Abstract:Paraboloid figures in engineering construction are generally used for making transmitting or receiving antenna of electromagnetic waves,in which the reflective surface must be fitted accurately with the designed parabolic equation and the radiation device must be installed accurately on the focus of paraboloid. Therefore,it is necessary to measure a lot of separate points on the paraboloid using electronic total-station with high accuracy during the installation of engineering construction,the estimation of construction precision and the deformation observation after the construction. By which,the plane equation regress of the paraboloid opening,the calculation of the plane normal vector,the coordinates transformation,the circle center fitting,the movement of coordinates axis and the regress of paraboloid equation are practiced to get the paraboloid equation and its focus to satisfy the requirements of the engineering construction,eccuracy estimateion and deformation observation.
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