Boots – shoes – and leggings
Patent
1991-12-16
1994-08-02
Black, Thomas G.
Boots, shoes, and leggings
318563, 318564, 244195, 36442401, G06F 1100, G06F 1116
Patent
active
053351770
ABSTRACT:
The disclosure relates to systems for piloting aircraft. Equations of the movements of the aircraft are used for computing, in a computer, of the first and second derivatives parameters V.sub.p, .PHI..sub.v, .sigma..sub.a, .beta..sub.v, .alpha., .PHI..sub.v, .sigma..sub.a, .beta..sub.v, of the parameters V.sub.p, .PHI..sub.v, .sigma..sub.a, .beta..sub.v, .alpha. of the movement of the aircraft, and the values thus computed are compared with those computed by means of the values of said parameters V.sub.p, .PHI..sub.v, .sigma..sub.a, .beta..sub.v, .alpha. at the instants t, (t+dt) and (t+2dt). An alarm signal (circuit 23) is generated if equality is not verified to a given precision.
REFERENCES:
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patent: 4032757 (1977-06-01), Eccles
patent: 4101958 (1978-07-01), Patterson et al.
patent: 4327437 (1982-04-01), Gelderloos
patent: 4698785 (1987-10-01), Desmond et al.
patent: 5079707 (1992-01-01), Bird et al.
patent: 5222065 (1993-06-01), Krogmann
Daniel M. Wilbers et al, "Detection Filters for Aircraft Sensor and Actuator Faults", ICCON '89 IEEE International Conference on Control and Applications, Apr. 1989, pp. 1-6, (p. 3 paragraph 4 & p. 4 paragraph 4.3).
Boiteau Catherine
Parus Roger
Black Thomas G.
Day Julie D.
Sextant Avionique
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