%0 Journal Article
%T Cross-correlation effect of ARAIM test statistic on false alarm risk
%+ Ecole Nationale de l'Aviation Civile (ENAC)
%A Bang, Eugene
%A Milner, Carl
%A Macabiau, Christophe
%< avec comité de lecture
%@ 1080-5370
%J GPS Solutions
%I Springer Verlag
%V 24
%N 4
%8 2020-10
%D 2020
%R 10.1007/s10291-020-00997-w
%Z Engineering Sciences [physics]/Signal and Image processingJournal articles
%X The requirement for ARAIM continuity risk due to the monitor false alarm has been outlined in earlier works for ARAIM development (WG-C in ARAIM technical subgroup milestone 3 report, 2016). However, the expected continuity risk comes from an underlying conservative assumption that the correlation between multiple monitors for fault detection is negligible. Thus, we investigate the effect of the cross-correlation across ARAIM solution separation tests on the monitor false alarm probability (PFA) by presenting a higher fidelity methodology to evaluate the PFA based on highly correlated fault detection tests. We carry out a preliminary assessment of ARAIM false alarm performance by using the proposed method. It was found that considering the cross-correlation among monitor test statistics reduces the predicted PFA by up to approximately 50% of the predefined requirement (e.g., 10−6) when triple satellite faults were considered. Despite such improvement, the baseline ARAIM implementation does not appear to be overly conservative.
%G English
%2 https://enac.hal.science/hal-02916817/document
%2 https://enac.hal.science/hal-02916817/file/Cross-Correl.pdf
%L hal-02916817
%U https://enac.hal.science/hal-02916817
%~ ENAC
%~ TELECOM
%~ TELECOM-SIGNAV