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
fDate :
7/1/1990 12:00:00 AM
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;
Journal_Title :
Aerospace and Electronic Systems Magazine, IEEE
