Power booster in an meo setting
AssigneeEMC SatCom Technologies, LLC
InventorSriram JAYASIMHA
Life of this patent
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Abstract
A customer satellite terminal provides seamless hand-off from a descending satellite to an ascending satellite in an equatorial MEO constellation at RF. The hand-off from the descending satellite to the ascending satellite is conducted when the propagation delay from the ascending satellite and the descending satellite are equal, by aligning first and second amplitudes, first and second frequency offsets, and first and second phases.
Claims22
A customer satellite terminal for providing seamless hand-off from a descending satellite to an ascending satellite in an equatorial MEO constellation at RF, the satellite terminal comprising:
- a processing device configured to receive a first satellite signal from the descending satellite and a second satellite signal from the ascending satellite, the first satellite signal having a first amplitude, first frequency offset, and first phase and the second satellite signal having a second amplitude, second frequency offset, and second phase;
- said processing device further configured to conduct a hand-off from the descending satellite to the ascending satellite when the propagation delay from the ascending satellite and the descending satellite are equal, by aligning first and second amplitudes, first and second frequency offsets, and first and second phases;
- said aligning process includes subtraction on time, amplitude, frequency and phase aligned signals and combining on the time, frequency and phase aligned signals.
A customer satellite terminal for providing seamless hand-off from an ascending satellite to a descending satellite in an equatorial MEO constellation, the satellite terminal comprising:
- a processing device configured to receive a first satellite signal from the ascending satellite and a second satellite signal from the descending satellite, the first satellite signal having a first amplitude, first frequency offset, and first phase and the second satellite signal having a second amplitude, second frequency offset, and second phase;
- said processing device further configured to conduct a hand-off from the descending satellite to the ascending satellite when the first and second amplitudes, first and second frequency offsets, and first and second phases are all aligned.
A system for satellite hand-off from a first satellite to a second satellite, the system comprising:
- a first antenna receiving a first signal from the first satellite;
- a second antenna receiving a second signal from the first satellite;
- and,
- a controller in communication with said first and second antenna, said controller configured to compare the first and second signals and move the second antenna to communicate with the first satellite when propagation delay from the first and second signals are equal.
A method for satellite hand-off from a first satellite to a second satellite, the method comprising:
- receiving via a first antenna, a first signal from the first satellite;
- receiving via a second antenna, a second signal from the first satellite;
- and,
- moving by a controller, the second antenna to communicate with the first satellite when propagation delay from the first and second signals are equal.
Dependencies are inferred from the claim text.