Yk. Yoon et Hs. Lee, FREQUENCY AND PHASE ESTIMATION FOR SINGLE SINUSOID USING CYCLIC AUTOCORRELATION, IEICE transactions on communications, E81B(3), 1998, pp. 689-693
In this letter, we propose new methods for estimating frequency and ph
ase of a complex sinusoid in complex white Gaussian noise. These new e
stimators use the cyclostationarity of the sinusoid which is a cyclost
ationary signal type. Only one component corresponding to a lag of zer
o of cyclic autocorrelations is used to reduce the computational load.
The performances of our proposed estimators are compared to those of
Kay estimator, Cramer-Rao bound (CRB) and maxim-likelihood estimator (
MLE). Simulation results show that our proposed methods can estimate t
he frequency and phase correctly even in low signal-to-noise ratio (SN
R).