Fault tolerant inertial reference system

Details Fault tolerant inertial reference system Fault tolerant inertial reference system

1995-07-19

1998-02-17

Elmore, Reba I.

Boots, shoes, and leggings

364183, 364190, 3649439, 3649448, 3649454, 3649458, 3649461, G05B 902

Patent

active

057197644

ABSTRACT:
A fault tolerant inertial reference system employs two independent inertial reference units each having its own inertial sensor array with redundant output information. Each inertial reference unit includes an independent source of position and velocity information through employment of a satellite positioning system. In turn, a high-speed error estimator processes inertial sensor output data from a local inertial sensor array with inertial sensor output data from another external inertial sensor array for determining high-level errors, and a low-speed error estimator processes output data from the local inertial sensor array with the velocity and position information separately obtained from the satellite positioning system for determining low-level errors. In turn these high and low-level errors are processed to determine a fault-free inertial sensor configuration for subsequently determining reliable fault tolerant inertial reference data obtainable with a minimum set of inertial sensors.

REFERENCES:
patent: 4499569 (1985-02-01), Lopez De Roma
patent: 4912475 (1990-03-01), Counselman, III
patent: 5184304 (1993-02-01), Huddle

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