Hybrid velocity derived heading reference system

Details Hybrid velocity derived heading reference system Hybrid velocity derived heading reference system

1981-03-23

1983-08-30

Smith, Jerry

Boots, shoes, and leggings

364453, 364455, 364456, 364457, G06F 1550, G06G 778

Patent

active

044020490

ABSTRACT:
An accurate and constantly updated heading reference is provided for movee vehicles, particularly aircraft. The heading is calculated from four velocity measurements, two of which are obtained from signals received from orbiting satellites, and two from on-board equipment which determines the vehicle's along-track and cross-track velocities. The on-board equipment may be a Doppler ground-speed sensor or an inertial velocity sensor using accelerometers, the outputs of which are integrated.

REFERENCES:
patent: 3214575 (1965-10-01), Seliger et al.
patent: 4106094 (1978-08-01), Land
patent: 4232313 (1980-11-01), Fleishman

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