TY - GEN
T1 - Solution separation and Chi-Squared ARAIM for fault detection and exclusion
AU - Joerger, Mathieu
AU - Pervan, Boris
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Future multi-constellation Global navigation satellite system (GNSS) will provide a large number of redundant ranging signals, which will improve the performance of receiver autonomous integrity monitoring (RAIM), but it will also increase the probability of satellite faults, thereby increasing the continuity risk. In response, in this paper, a new Chi-Squared (Chi2) RAIM approach to fault detection and exclusion (FDE) is developed, and compared to Solution Separation (SS) RAIM. The paper first introduces complete integrity and continuity risk equations for Chi2 RAIM FDE, which are currently missing in the literature. Probability bounds are developed, which express the fact that the reduction in continuity risk obtained using exclusion comes at the cost of a higher integrity risk. It is then shown that the Chi2 approach can provide a tighter integrity risk bound as compared to SS, but the SS bound enables risk evaluation in practical implementations where computation resources are limited. Finally, the SS and Chi2 FDE integrity and continuity risk bounds are implemented to establish worldwide availability maps for Advanced RAIM (ARAIM) in an example aircraft approach application using GPS, Galileo, GLONASS and Beidou satellite constellations.
AB - Future multi-constellation Global navigation satellite system (GNSS) will provide a large number of redundant ranging signals, which will improve the performance of receiver autonomous integrity monitoring (RAIM), but it will also increase the probability of satellite faults, thereby increasing the continuity risk. In response, in this paper, a new Chi-Squared (Chi2) RAIM approach to fault detection and exclusion (FDE) is developed, and compared to Solution Separation (SS) RAIM. The paper first introduces complete integrity and continuity risk equations for Chi2 RAIM FDE, which are currently missing in the literature. Probability bounds are developed, which express the fact that the reduction in continuity risk obtained using exclusion comes at the cost of a higher integrity risk. It is then shown that the Chi2 approach can provide a tighter integrity risk bound as compared to SS, but the SS bound enables risk evaluation in practical implementations where computation resources are limited. Finally, the SS and Chi2 FDE integrity and continuity risk bounds are implemented to establish worldwide availability maps for Advanced RAIM (ARAIM) in an example aircraft approach application using GPS, Galileo, GLONASS and Beidou satellite constellations.
KW - ARAIM
KW - GNSS
KW - RAIM
KW - fault detection and exclusion
KW - multi-constellation
UR - http://www.scopus.com/inward/record.url?scp=84905051410&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84905051410&partnerID=8YFLogxK
U2 - 10.1109/PLANS.2014.6851388
DO - 10.1109/PLANS.2014.6851388
M3 - Conference contribution
AN - SCOPUS:84905051410
SN - 9781479933204
T3 - Record - IEEE PLANS, Position Location and Navigation Symposium
SP - 294
EP - 307
BT - Proceedings of the 2014 IEEE/ION Position, Location and Navigation Symposium, PLANS 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 IEEE/ION Position, Location and Navigation Symposium, PLANS 2014
Y2 - 5 May 2014 through 8 May 2014
ER -