GPS与TPS集成超站仪的数据转换研究  

Research of Data Transformation for Super-totalstation Positioning System Integrated by GPS and Totalstation

作　　者：郭际明[1] 张正禄[1] 罗年学[1] 黄全义[1] 

机构地区：[1]武汉大学测绘科学与技术学院,武汉市珞喻路129号430079

出　　处：《武汉大学学报（信息科学版）》2001年第1期46-50,共5页Geomatics and Information Science of Wuhan University

基　　金：国家自然科学基金资助项目! (497716 0 5 );中奥国际合作资助项目! (V .B .11)

摘　　要：在讨论GPS与TPS两大测量技术特点的基础上 ,研究了两者的集成技术和数据转换问题 ,重点是如何利用GPS技术实时求得TPS的测站空间直角坐标 ,再通过合适的数学模型转换为地方坐标系的二维直角坐标和正常高。将GPS接收单元集成到TPS上构成超站仪测量系统 ,可以实现测站点与碎部点的同步测绘模式。Based on the discussion of the characteristics of GPS and totalstation,this paper focuses on the integration and data transformation for them.How to get the most precise three_dimensional cartesian coordinates of the station occupied by a totalstation through GPS unit integrated in it is emphasized,and then they are transferred to the local two_dimensional plane coordinates and the orthometric height by a series of mathematical models.The GPS unit,totalstation,radio,notebook computer and the corresponding software work together to form a new surveying system,super_totalstation positioning system(SPS) and a new surveying model for terrestrial surveying.With the help of this system,the positions of detail points can be measured at the same time with the station's.This will be a more advanced surveying type than pure GPS or totalstation model. GPS and totalstation are the two widely adopted surveying systems.GPS has the benefits that the line of sight between stations needn't to be sighted through and the measured distance may be very long.It has become the first considered method for establishing national ,district or engineering project control networks.As for densely built urban area,the signal from the GPS satellite is severely interrupted by buildings around the station,especially for detail surveying,GPS is limited,then totalstaion will has its advantage to catch detail points in this case.But we have to set up a series of control points used as stations and back sight reference points to locate other unknown detail points for the later method based on totalstation.If there is no control point around the surveying area,the surveyor has to develop a control network from some known points far away from the considered area,so a heavy extra control surveying task is appended.The integrated GPS and SPS is a solution for the above problem.First,a GPS receiver and a radio is put on a reference station with known coordinates and good condition to receive GPS satellite signal.Then a totalstaion with built_in GPS unit i

关 键 词：GPS TPS超站仪 数据转换模型 地方坐标系 测站点 碎部点 

分 类 号：P228.4[天文地球—大地测量学与测量工程]