Maximum-likelihood ambiguity resolution based on Bayesian principle

被引：20

作者：

Zhu, J ^{[1
]}

Ding, X ^{[1
]}

Chen, Y ^{[1
]}

机构：

[1] Hong Kong Polytech Univ, Dept Land Surveying & Geo Informat, Hong Kong, Hong Kong, Peoples R China

来源：

JOURNAL OF GEODESY | 2001年 / 75卷 / 04期

关键词：

maximum likelihood; Bayesian estimation; mean square error;

D O I：

10.1007/s001900100167

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Based on the Bayesian principle and the fact that GPS carrier-phase ambiguities are integers, the posterior distribution of the ambiguities and the position parameters is derived. This is then used to derive the maximum posterior likelihood solution of the ambiguities. The accuracy of the integer ambiguity solution and the position parameters is also studied according to the posterior distribution. It is found that the accuracy of the integer solution depends not only on the variance of the corresponding float ambiguity solution but also on its values.

引用

页码：175 / 187

页数：13