Process for the visual display of the attitude of an aircraft fo

Details Process for the visual display of the attitude of an aircraft fo Process for the visual display of the attitude of an aircraft fo

1990-11-05

1993-05-18

Ng, Jin F.

Communications: electrical

Aircraft alarm or indicating systems

Nonalarm flight indicator

33330, 340973, 340975, 364434, G01C 2100

Patent

active

052124800

ABSTRACT:
The invention relates to a process for the visual display of the attitude of an aircraft to assist piloting or flying in space. On the basis of the values of cardan or gimbal angles (.psi., .theta., .phi.) of the aircraft marked in a reference mark linked with the celestial cavity or firmament and on the basis of a calculation of quaternions, the process consists of displaying on a screen (1) on board the aircraft, in particular the following informations: a cruciform reticule (7,8,9), a piloting or flying circle B, the value of the roll angle (.phi.) in a scale (10), a net formed by portions of meridians (M) and parallels (P) of the celestial cavity, a symbol (V1) representing the direction pointed by the velocity vector of the aircraft, a short term prediction vector (12) for the aircraft attitude, as well as numerical values (19,21,23) for the roll, pitch and yaw velocities. Application is to the piloting of an aircraft in space.

REFERENCES:
patent: 2941306 (1960-06-01), Uecker
patent: 4305057 (1981-12-01), Rolston
patent: 4513509 (1985-04-01), Nordstrom
patent: 4797836 (1989-01-01), Witek et al.
patent: 4848706 (1989-07-01), Garg et al.
patent: 4914733 (1990-04-01), Gralnick
patent: 4977401 (1990-12-01), Sjoberg
NEC -Research & Development, No. 83, Oct. 1986, pp. 82-91, (Ninomiya et al.).
Journal of Guidance, Control & Dynamics, vol. 11, No. 2, Mar./Apr. 1988, pp. 110-118 (Lambros et al.).

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