Interference mitigation system for protecting radio astronomy an

Details Interference mitigation system for protecting radio astronomy an Interference mitigation system for protecting radio astronomy an

1994-12-05

1998-06-30

Eisenzopf, Reinhard J.

Telecommunications

Carrier wave repeater or relay system

Portable or mobile repeater

455 541, 455 63, 455 673, H04B 7185

Patent

active

057747873

ABSTRACT:
A constellation (12) of satellites (14) distributed around the earth supports satellite-based communication system (10) involved in global communication of subscriber units (24). Subscriber units (24) may potentially transmit from any location on earth. Some locations such as radio astronomy sites (28) may be interfered with by nearby transmissions from subscriber units (24) or transmissions from satellites (14). Subscriber units (24) located within a potentially interfering proximity to radio astronomy sites are prohibited from transmitting potentially interfering signals by reception of a non-interfering control signal transmitted by a radio astronomy special equipment located at radio astronomy sites. A radio astronomy special equipment (44) repeatedly transmits to a subscriber unit (24) a control signal synchronous with a control signal of a servicing satellite. The radio astronomy special equipment control signal (46), (48), and (54) is compatible with a subscriber unit's communication receiver.

REFERENCES:
patent: 5121409 (1992-06-01), Goss
patent: 5287550 (1994-02-01), Fennell et al.
patent: 5327572 (1994-07-01), Freeburg
patent: 5442805 (1995-08-01), Sager et al.
patent: 5548800 (1996-08-01), Olds et al.
Klandrud et al "Beacon Control of Radio Transmitters to Reduce Radio Frequency Interference" Motorola's Technical Developments, vol. 16, Aug. 1992.

Affiliated with

Also associated with

Rating

Interference mitigation system for protecting radio astronomy an does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Interference mitigation system for protecting radio astronomy an, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interference mitigation system for protecting radio astronomy an will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1871668