Signal generator for radio navigation system

Details Signal generator for radio navigation system Signal generator for radio navigation system

1983-08-29

1987-02-10

Blum, Theodore M.

Communications: directive radio wave systems and devices (e.g.,

Directive

Beacon or receiver

342356, 375115, G01S 110, H04B 719, H04L 2538

Patent

active

046426477

ABSTRACT:
An improved signal generator and method for radio navigation in accordance with systems of the type in which location is determined in accordance with radio fixings with respect to multiple points of reference, each of such points providing a coded transmission. Multiple coded bit sequences are stored in an adddressable read only memory. Phantom signals comprising a plurality of coded sequences are generated by addressing the memory in accordance with preselected sequences. Further, predetermined phase shifts are applied to the coded sequences to facilitate signal detection and associated computational processes.

REFERENCES:
patent: 4426712 (1984-01-01), Gorski-Popiel
patent: 4445118 (1984-04-01), Taylor et al.
patent: 4485383 (1984-11-01), Maher

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