Reliability analysis of fault-tolerant IMU architectures with redundant inertial sensors

Author

Jeerage, Mahesh K.

Author_Institution

Honeywell Syst. & Res. Center, Minneapolis, MN, USA

fYear

1990

fDate

20-23 Mar 1990

Firstpage

587

Lastpage

592

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/PLANS.1990.66232

Filename

66232