Aircraft satellite navigation precision-approach system includin

Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite

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34235704, 701215, H04B 7185, G01S 502

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active

059950439

ABSTRACT:
An aircraft local area augmented landing assistance system that employs a differential global positioning system (GPS) to assist aircraft (102) landing is disclosed. One or more GPS ground stations (120), each including at least one GPS receiver (122) and a datalink transmitter (126), calculate and transmit GPS correction data to an aircraft (102). An aircraft (102) employs a GPS receiver (106) for receiving ranging signals (112) from GPS satellites (108), and a datalink receiver (116) for receiving GPS correction data from a GPS ground station (120). The ground station datalink transmitter (126) employs code division multiple access spread spectrum techniques to transmit a datalink signal (128) that is QPSK modulated within the VHF navigation band. The datalink signal (128) is additionally used as a ranging signal by the aircraft, to augment the differential GPS.

REFERENCES:
patent: 4117267 (1978-09-01), Haberle et al.
patent: 4630283 (1986-12-01), Schiff
patent: 4751512 (1988-06-01), Longaker
patent: 5099245 (1992-03-01), Sagey
patent: 5402442 (1995-03-01), Ishigaki
patent: 5420883 (1995-05-01), Swensen et al.
patent: 5440544 (1995-08-01), Zinser, Jr.
patent: 5572216 (1996-11-01), Weinberg et al.
patent: 5714948 (1998-02-01), Farmakis et al.
patent: 5815525 (1998-09-01), Smith et al.
Pickholtz, R.L., "Theory of Spread-Spectrum Communications-A Tutorial", IEEE Transactions on Communication, vol. COM-30, No. 5, 855-884, May, 1982 .

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