期刊
JOURNAL OF NAVIGATION
卷 62, 期 4, 页码 699-709出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0373463309990142
关键词
RAIM; Outliers; Robust; Integrity
With more satellite systems becoming available there is currently a need for Receiver Autonomous Integrity Monitoring (RAIM) to exclude multiple Outliers. While the single outlier test can be applied iteratively, in the field of statistics robust methods are preferred when multiple outliers exist. This study compares the outlier test and numerous robust methods with simulated GPS measurements to identify which methods have the greatest ability to correctly exclude outliers. it was found that no method Could correctly exclude outliers 100% of the time. However, for a single outlier the outlier test achieved the highest rates of correct exclusion followed by the MM-estimator and the L-1-norm. As the number of outliers increased MM-estimators and the L-1-norm obtained the highest rates of normal exclusion, which were up to ten percent higher than the Outlier test.
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