Carrier frequency offset estimating device and system

Details Carrier frequency offset estimating device and system Carrier frequency offset estimating device and system

2011-07-26

2011-07-26

Tran, Khanh C (Department: 2611)

Pulse or digital communications

Receivers

Angle modulation

C375S260000

Reexamination Certificate

active

07986751

ABSTRACT:
A carrier frequency offset estimating device for estimating frequency offsets of a multi-carrier signal includes a transforming circuit, a cosine effect eliminating circuit, a model creating circuit, and an estimating circuit. The transforming circuit receives the multi-carrier signal and transforms the multi-carrier signal to single-carrier signals. The cosine effect eliminating circuit eliminates cosine effects in the single-carrier signals to form single-carrier signals without the cosine effects. The model creating circuit creates linear data models according to the single-carrier signals without the cosine effects. The estimating circuit estimates the frequency offsets of the multi-carrier signal according to the linear data models. A carrier frequency offset estimating system is also provided.

REFERENCES:
patent: 7257168 (2007-08-01), Goldstein et al.
patent: 7616557 (2009-11-01), Yeh et al.
patent: 2004/0141457 (2004-07-01), Seo et al.
patent: 2004/0180635 (2004-09-01), Choi et al.
patent: 2006/0014494 (2006-01-01), Vanderperren et al.

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