Easy set-up, vehicle mounted, in-motion tracking, satellite antenna
First Claim
1. A tracking system for a vehicle mounted satellite antenna, said tracking system comprising:
- a) a yaw sensor;
b) a pitch sensor;
c) a roll sensor; and
d) bias correction means coupled to said yaw sensor, said pitch sensor, and said roll sensor, said bias correction means including one of first bias correction means for correcting yaw sensor bias where roll sensor bias has been calibrated to zero, and second bias correction means for correcting yaw sensor bias where pitch sensor bias has been calibrated to zero.
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0 Petitions
Accused Products
Abstract
A low profile, vehicle mounted, in-motion tracking, satellite antenna includes a pair of antenna assemblies mounted in parallel on a rotatable platform. Each antenna assembly includes two subreflectors with a plastic matching element. The outputs of the two antenna assemblies are coupled with a single phase shifter. The combined outputs are retransmitted to a receiver inside the vehicle. The satellite antenna also includes a receiver for receiving channel selection data and/or for providing two-way communication with equipment inside the vehicle. The antennae, transmitter and receiver are self-powered by a storage device which is charged by a wind driven generator. A retractable radome lowers to a lower profile when the antenna is not in use.
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Citations
19 Claims
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1. A tracking system for a vehicle mounted satellite antenna, said tracking system comprising:
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a) a yaw sensor;
b) a pitch sensor;
c) a roll sensor; and
d) bias correction means coupled to said yaw sensor, said pitch sensor, and said roll sensor, said bias correction means including one of first bias correction means for correcting yaw sensor bias where roll sensor bias has been calibrated to zero, and second bias correction means for correcting yaw sensor bias where pitch sensor bias has been calibrated to zero. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A tracking system for a vehicle mounted satellite antenna having a signal output, said tracking system comprising:
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a) a received signal strength indicator coupled to the signal output of the satellite antenna;
b) an adjustable phase shifter coupled to said received signal strength indicator and to the signal output of the satellite antenna, wherein said adjustable phase shifter automatically adjusts the phase of the signal output of the satellite antenna in response to said received signal strength indicator in order to obtain maximum received signal strength. - View Dependent Claims (15, 16)
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17. A satellite antenna system, comprising:
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a) a satellite antenna having a signal output;
b) an adjustable phase shifter coupled to said signal output;
c) channel selection detection means coupled to said adjustable phase shifter and having means for coupling to the data port of a settop box, said channel selection detection means including means for determining a selected satellite channel from the data port of the settop box and means for adjusting said adjustable phase shifter based on the selected channel. - View Dependent Claims (18, 19)
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Specification