Apparatus, methods and computer program products for signal...

Details Apparatus, methods and computer program products for signal... Apparatus, methods and computer program products for signal...

2004-08-16

2008-11-18

Ahn, Sam K (Department: 2611)

Pulse or digital communications

Receivers

Angle modulation

Reexamination Certificate

active

07453956

ABSTRACT:
A target modulation is detected in a signal, e.g., a radio signal received by a device such as a mobile communications terminal. Respective target modulation correlations for respective carrier timing hypotheses are determined by demodulating signal values corresponding to the signal for the respective carrier timing hypotheses using a common carrier demodulation template and detecting the target modulation from the target modulation correlations. The target modulation may be, for example, a pseudonoise (PN) code, such as a GPS code or a CDMA communications system code, and the carrier timing hypotheses may correspond to various potential Doppler shifts.

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