Runway approach using localizer alone

Details Runway approach using localizer alone Runway approach using localizer alone

2007-04-17

2007-04-17

Zanelli, Michael J. (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Aeronautical vehicle

C340S947000, C340S952000

Reexamination Certificate

active

11400331

ABSTRACT:
This invention provides an improvement in the present instrument approach procedure used at airports having an ILS localizer without an accompanying UHF glide-slope. The field strength of the localizer, as measured at the airplane, is used as a basis for producing a glide-slope deviation signal. The shape of the resulting path may be adjusted by changing the input/output characteristic of a localizer receiver.

REFERENCES:
patent: 3757338 (1973-09-01), Liebman
patent: 3805588 (1974-04-01), Stone
patent: 3868689 (1975-02-01), Liu et al.
patent: 4390949 (1983-06-01), Beningfield et al.
patent: 4609921 (1986-09-01), Flynn

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