Method of acquiring a received spread spectrum signal

Details Method of acquiring a received spread spectrum signal Method of acquiring a received spread spectrum signal

2004-09-06

2009-06-09

Ha, Dac V (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S343000, C375S367000, C375S368000, C370S506000

Reexamination Certificate

active

07545853

ABSTRACT:
A method of acquiring a received spread spectrum signal, especially a GPS signal, is disclosed together with a spread spectrum signal receiver and a cellular telephone incorporating such a receiver. The method comprises the steps of: providing a replica signal containing a pseudorandom noise code, corresponding to that of the spread spectrum signal; providing a subject signal containing two fragments of the spread spectrum signal initially received during respective time periods between which a further time period elapses; and coherently correlating the replica signal with the subject signal over the two fragments.

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International Search Report for PCT/IB2004/051693; mailed Jun. 12, 2004.

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