Apparatus and method for sampling frequency offset and...

Pulse or digital communications – Receivers – Angle modulation

Reexamination Certificate

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C375S346000

Reexamination Certificate

active

08085876

ABSTRACT:
A communication system, including a receiver, is described having a common clock source that drives both carrier frequency (fc) and sampling frequency (fs). The receiver comprises a first signal processing stage for down converting a received data stream to baseband, a demodulation module coupled to the first signal processing stage for demodulating the down-converted data stream, and a second signal processing stage coupled to the demodulation module for decoding the demodulated data stream. Additionally, the receiver includes a carrier frequency offset (CFO) estimation module and a sampling frequency offset (SFO) correction module. The SFO correction module receives an estimated CFO, and then determines an SFO correction based on the estimated CFO, and applies the SFO correction to the received data stream.

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