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

Author

Jeerage, Mahesh K.

Author_Institution

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

Volume

5

Issue

7

fYear

1990

fDate

7/1/1990 12:00:00 AM

Firstpage

23

Lastpage

28

Abstract

A systematic reliability analysis procedure for evaluating fault-tolerant inertial measurement unit (IMU) architectures is described. The 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 overall reliability of the IMU and the major contributors to IMU reliability are computed. Three state-of-the-art fault-tolerant IMU architectures are evaluated and compared using the procedure.<>

Keywords

aerospace computing; aerospace instrumentation; aircraft instrumentation; computer architecture; failure analysis; fault tolerant computing; inertial navigation; redundancy; reliability; accelerometer; aircraft; architectures; exponential failure distributions; fault-tolerant IMU architectures; gyro; inertial measurement unit; redundancy management; redundant inertial sensors; reliability analysis; satellite; Aircraft navigation; Computer architecture; Fault tolerance; Fault tolerant systems; Military aircraft; Power supplies; Redundancy; Reliability; Sensor phenomena and characterization; Sensor systems;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems Magazine, IEEE

Publisher

ieee

ISSN

0885-8985

Type

jour

DOI

10.1109/62.134217

Filename

134217