Maximum-likelihood ambiguity resolution based on Bayesian principle |
| |
Authors: | J Zhu X Ding Y Chen |
| |
Institution: | (1) Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong, PRC e-mail: lsxlding@polyu.edu.hk; Tel.: +852 2766 5965; Fax: +852 2330 2994, HK |
| |
Abstract: | 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.
Received: 27 July 1999 / Accepted: 22 November 2000 |
| |
Keywords: | : Maximum Likelihood Bayesian Estimation Mean Square Error |
本文献已被 SpringerLink 等数据库收录! |