Gps Phase Observations Of Cycle Slip Detection And Repair Methods Applied Research In Engineering

With the development of satellite-orientate technique and the adjustment of American GPS's policy, the technique of satellite-orientate has been come into used all over the world. Now, GPS's action gets more and more important in big range high-precision survey control net, city control net, project control net, survey map control net. But under some bad environment, mutipath effects and all kinds of observe yawp become severe, cycle-skip appear occasionally in the phasic survey, that's usually lead to the survey results can't satisfied with the expectant and set precision requires. In this cases, it is necessary for us to process the detect and repair of cycle-skip of phasic survey before baseline calculated in order to improve the effective of whole cycle illegibility of baseline calculated.The article discusses questions about GPS's detect and repair of cycle-skip of phasic survey, each suitable range and the consistent of detect results .etc effected by Kalman filter wave,three-dispatch survey.etc through theory research and instance calculate , and further developing a software to implement the detect and repair of cycle-skip of real phasic survey according to three-dispatch survey and double frequncy carrier wave survey, the detect results is prominence effective. The repaired survey constitute RTNEX document, baseline calculated by commercial software .It can test the capability of commercial software in detect and repaire cycle-skip,etc. Trimble TGOffice v1.6 and Leica SKI-Pro v2.5's function in detect and repaire cycle-skip is perfect through test.