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US 2008/0165039 A1Published application
System and method for communicating at low signal-to-noise ratio using injected training symbols
AssigneeHarris Corporation
InventorsRichard D. Roberts, Terry Tabor
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Abstract
A system and method for communicating includes a transmitter that transmits a communication signal having a plurality of successive frames, with each frame formed with alternatively arranged N known data symbols and M unknown data symbols such that the N known data symbols as training symbols. The communications signals are received within a receiver. The N known data symbols are synchronized at the receiver by correlating and time averaging the N known data symbols.
Claims28
A communications system, comprising:
- a transmitter for transmitting a communications signal having a plurality of successive frames with each frame comprising alternately arranged N known data symbols as training symbols and M unknown data symbols;
- and
- a receiver for receiving the communications signal and synchronizing the N known data symbols by correlating and time averaging the N known data symbols to improve a training threshold.
A method for communicating, comprising:
- transmitting a communications signal having a plurality of successive frames with each frame comprising alternately arranged N known data symbols as training symbols and M unknown data symbols;
- receiving the communications signal within a receiver;
- and
- synchronizing the N known data symbols at the receiver by correlating and time averaging the N known data symbols to improve a training threshold.
1 more element
A method for communicating, comprising:
- transmitting a communications signal having a plurality of successive frames with each frame comprising alternately arranged N known data symbols as training symbols and M unknown data symbols;
- receiving the communications signal at a receiver;
- and
- processing the communications signal to form differently timed cross-correlation products to improve a training threshold.
1 more element
Dependencies are inferred from the claim text.