gps+技术在地籍平面控制测量中的应用+（Application of gps+ technology in Cadastral Survey and control）.docVIP

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gps+技术在地籍平面控制测量中的应用+（Application of gps+ technology in Cadastral Survey and control）.doc

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gps技术在地籍平面控制测量中的应用（ApplicationofgpstechnologyinCadastralSurveyandcontrol）

gps+技术在地籍平面控制测量中的应用+（Application of gps+ technology in Cadastral Survey and control） The application of eight and GPS technology in Cadastral plane control survey GPS positioning technology is widely used in Cadastral Control Survey because of its high precision, fast speed, low cost and easy operation. The control network established by GPS satellite positioning technology is called GPS control net (GPS network). The GPS network can be divided into two categories: one is the high precision GPS network of global or national, this kind of adjacent points in the GPS network in the first million meters distance of thousands of kilometers, the main task is as a framework for global or national high precision high precision coordinate coordinate frame, for global geodynamics and space science. The scientific research service, or used to plate movement or crust type of regional variation and other issues. The other is the regional GPS network, including C, D, E national class GPS network or designed for engineering projects (such as cadastral survey, water conservancy, city subway and Tunnel Engineering) GPS mesh measurement, characteristics of this kind of network is limited (control area control of a city or a area), edge length (usually from a few hundred meters to 20 km), short observation time (from a few minutes to one or two hours of rapid static positioning) GPS system includes three parts: space part GPS satellite constellation, ground control part - ground monitoring system, user equipment Part - GPS signal receiver GPS signal receiver (GPS receiver) of the structure is divided into two parts the antenna unit and the receiving unit for measuring receiver, two units are generally divided into two separate parts, the observation of the antenna unit is arranged in the station, measuring receiving unit is arranged in the appropriate place near the station, the two connected power cable a machine. Also, the antenna unit and the receiving unit are made into a whole, a