Title :
Reliability analysis of fault-tolerant IMU architectures with redundant inertial sensors
Author :
Jeerage, Mahesh K.
Author_Institution :
Honeywell Syst. & Res. Center, Minneapolis, MN, USA
Abstract :
A systematic reliability analysis procedure for evaluating fault-tolerant inertial measurement unit (IMU) architectures is described. This reliability analysis procedure is based on modeling the system architecture, the component reliabilities, and the redundancy management. The component reliabilities are based on constant failure rates and exponential failure distributions. The procedure computes both the overall reliability of the IMU and the major contributors to the IMU reliability. This reliability analysis procedure is used to evaluate and compare three state-of-the-art fault-tolerant IMU architectures: the triple triad architecture, the dual quad architecture, and the hexad architecture
Keywords :
aircraft instrumentation; computerised instrumentation; inertial navigation; reliability; component reliabilities; constant failure rates; dual quad architecture; exponential failure distributions; fault-tolerant IMU architectures; hexad architecture; inertial measurement unit; redundancy management; redundant inertial sensors; systematic reliability analysis procedure; triple triad architecture; Computer architecture; Electronic components; Fault tolerance; Fault tolerant systems; Military aircraft; Power supplies; Redundancy; Reliability; Sensor phenomena and characterization; Sensor systems;
Conference_Titel :
Position Location and Navigation Symposium, 1990. Record. The 1990's - A Decade of Excellence in the Navigation Sciences. IEEE PLANS '90., IEEE
Conference_Location :
Las Vegas, NV
DOI :
10.1109/PLANS.1990.66232
