Title :
A prefiltering approach to frequency offset estimation in AWGN
Author :
Rezki, M. ; Sabel, L. ; Kale, I.
Author_Institution :
Dept. of Electron. Syst., Univ. of Westminster, London, UK
Abstract :
A new technique is proposed in the estimation of the frequency offset present in received communication signals imbedded in additive white Gaussian noise (AWGN) channels. This method consists of applying an extra filtering operation to the received signal after matched filtering and before the application of any frequency offset estimator. A new Cramer-Rao bound (CRB) is derived to be compared to the simulation results obtained.
Keywords :
AWGN channels; filtering theory; frequency estimation; quadrature phase shift keying; AWGN channels; Cramer-Rao bound; QPSK modulated carrier; additive white Gaussian noise; extra filtering operation; frequency offset estimation; matched filtering; prefiltering approach; received communication signals; simulation results; AWGN; Additive white noise; Baseband; Filtering; Frequency estimation; Gaussian noise; Low pass filters; Matched filters; Noise reduction; Signal to noise ratio;
Conference_Titel :
Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on
Print_ISBN :
0-7803-7448-7
DOI :
10.1109/ISCAS.2002.1010265
