Apparatus for measuring an aircraft's speed and height

Details Apparatus for measuring an aircraft's speed and height Apparatus for measuring an aircraft's speed and height

1978-03-09

1979-01-23

Buczinski, S. C.

Optics: measuring and testing

Velocity or velocity/height measuring

With light detector

358107, G01P 336, H04N 718

Patent

active

041358171

ABSTRACT:
Apparatus for measuring an aircraft's horizontal speed and height above ground without the need for airborne cooperative devices. Two ground level TV cameras separated by a measured distance and pointed at zenith are placed in line with the projection of the expected path of the aircraft. Speed is determined by measuring the time that it takes the aircraft to travel between the fields of view of the two TV cameras using zenith crossings as the reference points. Height is determined by correlating the speed with the time required to cross the field of view of either of the two cameras.

REFERENCES:
patent: 2944154 (1960-07-01), Bosch
patent: 3057071 (1962-10-01), Sinn
patent: 3514620 (1970-05-01), Wiggerman
patent: 3525568 (1970-08-01), Dreyfus
J. O. Limb et al., IEEE Transactions on Communications, vol. Com-23, No. 4, pp. 474-478, Apr. 1975.

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