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New maximum likelihood based frequency estimator for digital receivers

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2 Author(s)
Hamila, R. ; Telecommun. Lab., Tampere Univ. of Technol., Finland ; Renfors, M.

Recently, a new all-digital technique for symbol timing and carrier phase synchronization of digital receivers was introduced by the authors. The's technique is based on a polynomial approximation of the likelihood function by using the Farrow structure. In this contribution, we propose a new Tretter-based frequency estimator that is directly derived from the carrier phase estimate. The proposed estimator is simple to implement and is particularly suited for digital receiver architectures. This new Tretter-based estimator performs fairly well when compared with the Fitz and the Luise-Reggiannini frequency estimators, in the presence of substantial carrier frequency offset

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Wireless Communications and Networking Conference, 1999. WCNC. 1999 IEEE

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