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《Science of Surveying and Mapping》 2016-01
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Validation and correction of RTK ambiguity based on quasi-accurate detection of gross errors

SHU Bao;LIU Hui;ZHANG Ming;WU Dan;ZHANG Donghai;Research Center of GNSS,Wuhan University;School of Geology Engineering and Geomatics,Chang'an University;  
In order to improve the validation and correction accuracy of ambiguity for RTK reference stations,the paper proposed a method of detecting the fixed ambiguity based on QUasi-Accurate Detection of gross errors(QUAD):the wrongly fixed ambiguity was judged as gross errors of the observations,and the location and values of the errors were accurately determined;finally the integer cycles were obtained according to the wavelength of ambiguity.Experimental result showed that the method could realized the real-time detection and correction of the wrongly fixed ambiguity for the case of a small amount of ambiguities with pseudo errors.
【Fund】: 国家高技术研究发展计划(863计划)项目(2007AA12Z309);; 国家重点基础研究发展计划(973计划)项目(2007CB310805)
【CateGory Index】: P228.4
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