Daniel J Reid

US Patent:

48272655, May 2, 1989

Filed:

Apr 13, 1983

Appl. No.:

6/484472

Inventors:

Aniruddha Das - King of Prussia PA
Victor Navon - Collegeville PA
Daniel F. Reid - Exton PA

Assignee:

General Electric Company - Philadelphia PA

International Classification:

G01S 1300

US Classification:

342 78

Abstract:

A cooperative antenna tracking system for use at both ends of a radio link employs conical-scanning-type tracking at each end of the radio link to point a directional antenna guided by a continuous radio signal transmitted from an antenna at the other end of the link. A cooperative system between the two stations avoids pollution of the tracking in each station which might be caused by conical scanning at the other end of the link. Tracking pollution is avoided by time multiplexing tracking intervals between the two stations or by employing a tracker drive signal as a reference signal in a synchronous detector in each station to demodulate its own scanning frequency while sharply discriminating against signal variations produced by a scanning frequency at the other end of the link.