Application of GPS Speed Static Positioning Technique in Urban Cadastral Survey
Chen Hong-an · Anhui nongye kexue · 2008
[Objective] The research aimed to provide references for the application of GPS speed static positioning technique in urban cadastral survey.[Method] The D-grade GPS control network was used as first class control network in measurement volume in the Shanting district urban cadastral survey.Four Trimble 5700 GPS dual frequency receiver was used for fast static survey.Twenty-two points were choosed to compose skeleton network and to exercise optimal design.GPS fourth-grade leveling joint control survey was carried out with Trimble DINI12 electronic level.[Results] The results could meet the demand under C-grade GPS control measurement by precision statistics analysis,using fast staticposition measurement combined with theGPS leveling data.And it could meet the demand under GPS fourth-grade leveling accuracy using a certain amount and well distributed GPS leveling points for height fitting.[Conclusion] First class control network was established in urban cadastral survey with GPS speed static positioning technique,and good economic benefit was obtained in the study.