Mobile satellite communication system utilizing polarization...

Telecommunications – Carrier wave repeater or relay system – Portable or mobile repeater

Reexamination Certificate

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Details

C455S303000, C455S296000, C455S456100

Reexamination Certificate

active

07043198

ABSTRACT:
The present invention utilizes a dual polarization reception system (200) that utilizes the energy available in orthogonal polarizations to effectively increase link margin, thereby allowing for adequate signal quality reception in difficult environments. A co-polarized and a cross-polarized signal are separately downconverted and demultiplexed. The signals from each demultiplexed output are then sampled and weighted. The weighted samples for each polarity are combined in soft decision combining/decoding circuitry (255, 360), and this circuitry determines the most likely state of a received symbol's transmitted value.

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