Abstract
Due to disadvantages of complex working procedure, long field survey and low efficiency of the traditional cadastral survey methods exist, a modified system based on GPS(Global Position System) /PDA(Personal Digital Assist) combined with TS(Total Station) is proposed. The system emphasizes the design of TS free setting station for detail survey without GPS, to realize simultaneously processing control survey and detail survey. The system also applies digital drafting method based on PDA instead of cartographical sketching, to realize fully-digitalized cadastral survey. The application in Beijing shows that the modified cadastral survey system based on GPS/PDA performs high efficiency, and the accuracy of this system can meet the requirement of 1:500 large scale cadastral survey.
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