GROUND-BASED SATELLITE ANTENNA POINTING SYSTEM
First Claim
1. A method for determining pointing error of a satellite antenna, the method comprising:
- receiving, at a receiving station, a pointing error signal transmitted from a satellite, wherein the pointing error signal includes a first beacon signal and a modulated second beacon signal;
demodulating the received pointing error signal to recover the first beacon signal and the second beacon signal; and
determining a pointing error based at least in part on the first beacon signal and the second beacon signal.
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Accused Products
Abstract
The present application includes systems and methods for determining pointing error of a satellite antenna. In one aspect a method for determining pointing error of a satellite antenna includes receiving, at a receiving station, a pointing error signal formed by the antenna and transmitted from a satellite, wherein the pointing error signal includes a first beacon (reference) signal and a modulated second beacon (error) signal. The receiving station may demodulate the received pointing error signal to recover the second beacon signal with respect to the first beacon signal, and based at least in part on the demodulated beacon signal, the receiving station may determine the pointing error of the satellite antenna.
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Citations
20 Claims
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1. A method for determining pointing error of a satellite antenna, the method comprising:
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receiving, at a receiving station, a pointing error signal transmitted from a satellite, wherein the pointing error signal includes a first beacon signal and a modulated second beacon signal; demodulating the received pointing error signal to recover the first beacon signal and the second beacon signal; and determining a pointing error based at least in part on the first beacon signal and the second beacon signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for determining pointing error of a satellite antenna, the system comprising:
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a receiver in communication with a satellite configured to receive a pointing error signal transmitted from the satellite, wherein the pointing error signal includes a first beacon signal and a modulated second beacon signal; control circuitry configured to; demodulate the received pointing error signal to recover the first beacon signal and the second beacon signal; and determine a pointing error based at least in part on the first beacon signal and the second beacon signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification