An improved regularization method to resolve integer ambiguity in rapid positioning using single frequency GPS receivers

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	An improved regularization method to resolve integer ambiguity in rapid positioning using single frequency GPS receivers
	Ou, J. K. ; Wang, Z. J.
刊名	Chinese Science Bulletin
	2004
期号	2 页码:196-200
中文摘要	new approach is employed in GPS rapid positioning using several-epoch single frequency phase data. Firstly, the structure characteristic of the normal matrix in GPS rapid positioning is analyzed. Then, in the light of the characteristic, based on TIKHONOV regularization theorem, a Dew regularizer is designed to mitigate the ill-condition of the normal matrix. The accurate float ambiguity solutions and their MSEM (Mean Squared Error Matrix) are obtained using several-epoch single frequency phase data. Combined with LAMBDA method, the new approach was used to fix the integer ambiguities correctly and quickly using MSEM instead of the cofactor matrix of the ambiguities. Finally, a baseline over 3 km is taken as an example. The fixed integer ambiguities by the new approach using five epoch single frequency phase data are the same as those fixed by Bernese software using long time data. The success rate of fixing the integer ambiguities is 100 percent using 197 group data. Compared with the traditional methods, the new approach provides better accuracy and efficiency in GPS rapid positioning. So, the new approach has an extensive application outlook in deformation monitoring, pseudokinematic relative positioning, and attitude determination, etc.
原文出处	://WOS:000220239800015
公开日期	2012-04-11
内容类型	期刊论文
源URL	[http://ir.whigg.ac.cn/handle/342008/3223]
专题	测量与地球物理研究所_其他_期刊论文
推荐引用方式 GB/T 7714	Ou, J. K.,Wang, Z. J.. An improved regularization method to resolve integer ambiguity in rapid positioning using single frequency GPS receivers[J]. Chinese Science Bulletin,2004(2):196-200.
APA	Ou, J. K.,&Wang, Z. J..(2004).An improved regularization method to resolve integer ambiguity in rapid positioning using single frequency GPS receivers.Chinese Science Bulletin(2),196-200.
MLA	Ou, J. K.,et al."An improved regularization method to resolve integer ambiguity in rapid positioning using single frequency GPS receivers".Chinese Science Bulletin .2(2004):196-200.