Abstract: A new iterative method of the phase reconstruction or signal retrieval has beenproposed in this paper. Assuming the phases of the transfer function of system or of the Fourier transform of signal are nonnegtive and the supports of impulse response or of signal are finite, and taking arbitrary linear phase as an initial estimation, the satisfactory phase reconstruction and signal retrieval are obtained from the known amplitude spectrum by FFT.
A method of speeding up convergence rate and its application to the phase reconstruction of arbitrary piezoelectric receivers of axisymmetry are discussed.