A MODIFICATION OF THE DISCRETE POLYNOMIAL TRANSFORM

The discrete polynomial transform (DPT) has been introduced recently a s a computationally efficient algorithm for estimating the phase param eters of constant-amplitude polynomial phase signals. In this correspo ndence, we present a modification of the DPT, which improves the estim ation accuracy. We show by a perturbation analysis that the mean-squar ed error of the estimates is reduced when the order of the polynomial is three or greater.