초록 ▼

In order to reduce nuisance warnings and to increase the effectiveness of real warnings produced by a ground proximity warning system, the criteria for generating a warning is varied for certain airport areas to take into account the terrain in those areas. Along with position data, certain flight p

In order to reduce nuisance warnings and to increase the effectiveness of real warnings produced by a ground proximity warning system, the criteria for generating a warning is varied for certain airport areas to take into account the terrain in those areas. Along with position data, certain flight parameters such as heading, altitude, glideslope and localizer deviation are checked by the system in order to ensure that the aircraft is located in the desired warning modification area. In addition, the ground proximity warning system includes a mechanism for ensuring that the corrected barometric altitude of the aircraft is within acceptable limits.

대표청구항 ▼

A ground proximity warning system for aircraft comprising: a source of signals representing aircraft flight parameters; warning logic means operatively connected to said source of flight parameter signals for comparing said flight parameter signals and generating a warning signal in response to pred

A ground proximity warning system for aircraft comprising: a source of signals representing aircraft flight parameters; warning logic means operatively connected to said source of flight parameter signals for comparing said flight parameter signals and generating a warning signal in response to predetermined relationships between selected flight parameter signals; a source of position signals representing the position of the aircraft; and condition logic means operationally connected to said warning logic means and said source of position signals for varying said predetermined relationships when the aircraft is in a predetermined warning location.