A method and apparatus for correcting a phase of a phase-modulated signal for blind demodulation. The method and apparatus generally include the creation of a plurality of angle bins, wherein each constellation point of the phase- modulated signal is assigned to an angle bin, depending on its phase angle. A histogram is formed of the angle bins and cross correlated with a template signal model histogram. The maximum value of the cross correlation determines a correction angle by which the phase angle of all the phase-modulated constellation points is multiplied.
