DocumentCode
3606466
Title
A simple position estimator that improves advanced RAIM performance
Author
Blanch, Juan ; Walter, Todd ; Enge, Per ; Kropp, Victoria
Author_Institution
Stanford Univ. Stanford, Stanford, CA, USA
Volume
51
Issue
3
fYear
2015
fDate
7/1/2015 12:00:00 AM
Firstpage
2485
Lastpage
2489
Abstract
We describe a simple method to determine a Global Navigation Satellite System (GNSS) position estimator for advanced receiver autonomous integrity monitoring (RAIM) that improves availability upon the commonly used least squares estimator. The idea consists in searching the estimator among all affine combinations of the all-in-view least squares estimator and a fault-tolerant estimator - the one corresponding to the most difficult fault to mitigate. Availability simulations show a significant improvement in vertical guidance coverage levels for a dual constellation scenario.
Keywords
least squares approximations; parameter estimation; satellite navigation; Global Navigation Satellite System position estimator; advanced RAIM performance; advanced receiver autonomous integrity monitoring; all-in-view least squares estimator; fault-tolerant estimator; simple position estimator; Accuracy; Global Positioning System; Least squares approximations; Meetings; Monitoring; Satellites;
fLanguage
English
Journal_Title
Aerospace and Electronic Systems, IEEE Transactions on
Publisher
ieee
ISSN
0018-9251
Type
jour
DOI
10.1109/TAES.2015.140674
Filename
7272884
Link To Document