초록 ▼

An inertial measurement system for determining the attitude and rate of change of attitude of a vehicle such as an aircraft is disclosed. Redundancy of the inertial measurement system may be accomplished by utilizing a global positioning system having three receivers and a set of antennas strategica

An inertial measurement system for determining the attitude and rate of change of attitude of a vehicle such as an aircraft is disclosed. Redundancy of the inertial measurement system may be accomplished by utilizing a global positioning system having three receivers and a set of antennas strategically disposed on the vehicle. The global positioning system having receivers may be utilized for accomplished failure detection and isolation of the inertial measurement system rather than providing a redundant inertial measurement system. Failure detection of the IMUs may be accomplished with only dual antenna/receiver configuration.

대표청구항 ▼

[ What is claimed is:] [1.]1. An inertial measurement system for determining the attitude and rate of change of attitude of a vehicle, about an IMU directional axis of a first reference system:a second reference system comprising a global positioning system having dual receivers for deriving two coo

[ What is claimed is:] [1.]1. An inertial measurement system for determining the attitude and rate of change of attitude of a vehicle, about an IMU directional axis of a first reference system:a second reference system comprising a global positioning system having dual receivers for deriving two coordinate position and attitude inputs from satellite reference signals from a pair of antennas, said antennas being mounted on the vehicle along a directional axis of the vehicle, said directional axis being non-coincidental with respect to said IMU directional axis;said second reference system providing an independent measurement of the performance of said first reference system for detecting a failure of said first reference system.