On the determination of the position of extrema of sampled correlators
R. Moddemeijer · IEEE Transactions on Signal Processing · 1991
The problem of determination of the position of the extremum of a continuous correlator function from its samples, if the spectrum of the correlator is not bandlimited, is discussed. Searching for the position of the extremum by fitting a parabola through three samples around that extremum leads to clustering of the estimates around values corresponding with the sampling moments.>