Interference mitigation system for protecting radio astronomy and method of using same
First Claim
1. A method of mitigating electromagnetic interference during a scheduled radio astronomy session as scheduled at a radio astronomy site, said electromagnetic interference created by operating a satellite-based communication system, said method comprising the steps of:
- (a) requesting interference mitigation services for said scheduled radio astronomy session from a radio astronomy site to a ground control station;
(b) transmitting a mitigation timetable from said ground control station to radio astronomy special equipment;
(c) receiving said mitigation timetable at said radio astronomy special equipment;
(d) activating said radio astronomy special equipment located at said radio astronomy site according to said mitigation timetable for mitigating said electromagnetic interference during said scheduled radio astronomy session; and
(e) inhibiting said electromagnetic interference from a subscriber unit of said satellite-based communication system, said subscriber unit located within a protection zone encompassing said radio astronomy site.
3 Assignments
0 Petitions
Accused Products
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.
37 Citations
7 Claims
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1. A method of mitigating electromagnetic interference during a scheduled radio astronomy session as scheduled at a radio astronomy site, said electromagnetic interference created by operating a satellite-based communication system, said method comprising the steps of:
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(a) requesting interference mitigation services for said scheduled radio astronomy session from a radio astronomy site to a ground control station; (b) transmitting a mitigation timetable from said ground control station to radio astronomy special equipment; (c) receiving said mitigation timetable at said radio astronomy special equipment; (d) activating said radio astronomy special equipment located at said radio astronomy site according to said mitigation timetable for mitigating said electromagnetic interference during said scheduled radio astronomy session; and (e) inhibiting said electromagnetic interference from a subscriber unit of said satellite-based communication system, said subscriber unit located within a protection zone encompassing said radio astronomy site. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification