Solving single-frequency phase ambiguity using parameter weights fitting and constrained equation ambiguity resolution methods

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	Solving single-frequency phase ambiguity using parameter weights fitting and constrained equation ambiguity resolution methods
	Yang, R. G. ; Ou, J. K. ; Yuan, Y. B. ; Zhang, K. F. ; Wen, D. B. ; Grenfell, R.
刊名	Journal of Central South University of Technology
	2006
期号	1 页码:93-98
中文摘要	Based on the structural characteristics of the double-differenced normal equation, a new method was proposed to resolve the ambiguity float solution through a selection of parameter weights to construct an appropriate regularized matrix, and a singular decomposition method was used to generate regularization parameters. Numerical test results suggest that the regularized ambiguity float solution is more stable and reliable than the least-squares float solution. The mean square error matrix of the new method possesses a lower correlation than the variance-covariance matrix of the least-squares estimation. The size of the ambiguity search space is reduced and the search efficiency is improved. The success rate of the integer ambiguity searching process is improved significantly when the ambiguity resolution by using constraint equation method is used to determine the correct ambiguity integer-vector. The ambiguity resolution by using constraint equation method requires an initial input of the ambiguity float solution candidates which are obtained from the LAMBDA method in the new method. In addition, the observation time required to fix reliable integer ambiguities can be significantly reduced.
原文出处	://WOS:000235930100018
公开日期	2012-04-11
内容类型	期刊论文
源URL	[http://ir.whigg.ac.cn/handle/342008/3435]
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	Yang, R. G.,Ou, J. K.,Yuan, Y. B.,et al. Solving single-frequency phase ambiguity using parameter weights fitting and constrained equation ambiguity resolution methods[J]. Journal of Central South University of Technology,2006(1):93-98.
APA	Yang, R. G.,Ou, J. K.,Yuan, Y. B.,Zhang, K. F.,Wen, D. B.,&Grenfell, R..(2006).Solving single-frequency phase ambiguity using parameter weights fitting and constrained equation ambiguity resolution methods.Journal of Central South University of Technology(1),93-98.
MLA	Yang, R. G.,et al."Solving single-frequency phase ambiguity using parameter weights fitting and constrained equation ambiguity resolution methods".Journal of Central South University of Technology .1(2006):93-98.