Weighted-least-squares phase reconstruction from the bispectrum

Abstract

A new weighted-least-squares algorithm for phase estimation from the bispectrum is presented. The algorithm uses phasors instead of phases to avoid modulo-2π ambiguities present in the bispectrum phases. The performance of this algorithm is compared with the performances of several other previously proposed algorithms from both simulated and field data. It is shown that the new algorithm results in more accurate phase-spectrum estimates than the other approaches.