Pulse or digital communications – Spread spectrum
Reexamination Certificate
2006-09-28
2009-10-13
Odom, Curtis B (Department: 2611)
Pulse or digital communications
Spread spectrum
C375S136000, C375S142000, C375S143000, C375S147000, C375S150000, C375S152000
Reexamination Certificate
active
07602834
ABSTRACT:
A system and method for determining a fine frequency offset of a composite code spread spectrum signal is disclosed. The method includes despreading at least one component of the composite spread spectrum signal to form a partially despread composite spread spectrum signal. A set of on-time samples are selected from the signal. The set of on-time samples are rotated by a predetermined frequency amount. The set of rotated samples are placed into a plurality of frequency bins, with each frequency bin representative of a different frequency estimate. An energy for the signal in each frequency bin is determined to find the bin having the greatest energy.
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Giallorenzi Thomas R.
Griffin Dan M.
Harris Johnny M.
Kingston Sam
Kirton & McConkie
L-3 Communications Corp.
Odom Curtis B
Ralston William T.
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