Best Sensor Configuration and Accommodation Rule Based on Navigation Performance for INS with Seven Inertial Sensors

This paper considers the best sensor configuration and fault accommodation problem for inertial navigation systems which use seven inertial sensors such as gyroscopes and accelerometers. We prove that when six inertial sensors are used, the isolation of a double fault cannot be achieved for some com...

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Main Authors: Cheol-Kwan Yang, Duk-Sun Shim
Format: Article
Language:English
Published: MDPI AG 2009-10-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/9/11/8456/
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author Cheol-Kwan Yang
Duk-Sun Shim
author_facet Cheol-Kwan Yang
Duk-Sun Shim
author_sort Cheol-Kwan Yang
collection DOAJ
description This paper considers the best sensor configuration and fault accommodation problem for inertial navigation systems which use seven inertial sensors such as gyroscopes and accelerometers. We prove that when six inertial sensors are used, the isolation of a double fault cannot be achieved for some combinations of fault magnitudes, whereas when seven inertial sensors are used, the isolation of any double fault can be achieved. There are many configurations which provide the minimum position errors. This paper proposes four configurations which show the best navigation performance and compares their FDI performances. Considering the FDI performance and the complexity of the accommodation rule, we choose one sensor configuration and provide accommodation rules for double faults. A Monte Carlo simulation is performed to show that the accommodation rules work well.
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spelling doaj.art-16a5a82e07c747c4922856870e77a2d62022-12-22T03:10:30ZengMDPI AGSensors1424-82202009-10-019118456847210.3390/s91108456Best Sensor Configuration and Accommodation Rule Based on Navigation Performance for INS with Seven Inertial SensorsCheol-Kwan YangDuk-Sun ShimThis paper considers the best sensor configuration and fault accommodation problem for inertial navigation systems which use seven inertial sensors such as gyroscopes and accelerometers. We prove that when six inertial sensors are used, the isolation of a double fault cannot be achieved for some combinations of fault magnitudes, whereas when seven inertial sensors are used, the isolation of any double fault can be achieved. There are many configurations which provide the minimum position errors. This paper proposes four configurations which show the best navigation performance and compares their FDI performances. Considering the FDI performance and the complexity of the accommodation rule, we choose one sensor configuration and provide accommodation rules for double faults. A Monte Carlo simulation is performed to show that the accommodation rules work well.http://www.mdpi.com/1424-8220/9/11/8456/fault detection and isolationfault accommodationinertial sensorsparity equationprobability of correct isolation
spellingShingle Cheol-Kwan Yang
Duk-Sun Shim
Best Sensor Configuration and Accommodation Rule Based on Navigation Performance for INS with Seven Inertial Sensors
Sensors
fault detection and isolation
fault accommodation
inertial sensors
parity equation
probability of correct isolation
title Best Sensor Configuration and Accommodation Rule Based on Navigation Performance for INS with Seven Inertial Sensors
title_full Best Sensor Configuration and Accommodation Rule Based on Navigation Performance for INS with Seven Inertial Sensors
title_fullStr Best Sensor Configuration and Accommodation Rule Based on Navigation Performance for INS with Seven Inertial Sensors
title_full_unstemmed Best Sensor Configuration and Accommodation Rule Based on Navigation Performance for INS with Seven Inertial Sensors
title_short Best Sensor Configuration and Accommodation Rule Based on Navigation Performance for INS with Seven Inertial Sensors
title_sort best sensor configuration and accommodation rule based on navigation performance for ins with seven inertial sensors
topic fault detection and isolation
fault accommodation
inertial sensors
parity equation
probability of correct isolation
url http://www.mdpi.com/1424-8220/9/11/8456/
work_keys_str_mv AT cheolkwanyang bestsensorconfigurationandaccommodationrulebasedonnavigationperformanceforinswithseveninertialsensors
AT duksunshim bestsensorconfigurationandaccommodationrulebasedonnavigationperformanceforinswithseveninertialsensors