Methods and systems for acquiring signals using coherent...

Details Methods and systems for acquiring signals using coherent... Methods and systems for acquiring signals using coherent...

2011-03-15

2011-03-15

Payne, David C. (Department: 2611)

Pulse or digital communications

Receivers

C375S343000

Reexamination Certificate

active

07907679

ABSTRACT:
Embodiments include methods and apparatus for verifying the detection of a correlation peak, which may represent an acquisition of a received acquisition code symbol sequence. The method includes determining a series of coherently-aligned peaks from a series of correlation peaks. Determining the plurality of coherently-aligned peaks includes correcting a frequency offset and a phase offset for each of the plurality of correlation peaks. A coherent match filter process is performed on the plurality of coherently-aligned peaks. A detection of the correlation peak may be verified when the match filter result exceeds a threshold.

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