ACCESSING LP TRANSPONDERS WITH CP TERMINALS VIA WAVEFRONT MULTIPLEXING TECHNIQUES
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Abstract
The invention is about a method and apparatus for grouping multiple satellite transponders with both (LP) polarization formats in different frequencies through Wave-Front (WF) Multiplexing (muxing) techniques for ground terminals with incompatible (CP) polarization formats. As a result of this invention, linear polarized (LP) transponders can be accessed and efficiently utilized by circularly polarized (CP) ground terminals and vice versa. This invention consists of conventional ground terminals, a unique organization of space assets, and a unique polarization alignment processor. The applications of wavefront multiplexing techniques to satellite communications offer many potential advantages, including improved flexibility and utility efficiency of existing space assets. Our proposed “Polarization Utility Waveforms” is an entirely new concept in VSAT and Earth Station Antenna diversity. The implementation enables antennas to switch between different polarization formats at the press of a button, and provides teleport operators with greater flexibility in how they manage their assets.
9 Citations
40 Claims
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1-20. -20. (canceled)
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21. A satellite communication system comprising:
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a first polarized communication channel configured to carry a first combination associated with a first signal weighted by a first parameter; and a second polarized communication channel configured to carry a second combination associated with said first signal weighted by a second parameter, wherein said second polarized communication channel has a different polarization from said first polarized communication channel, wherein said first and second polarized communication channels are at a first common frequency slot, wherein said first and second polarized communication channels are arranged in parallel. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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Specification