System and method for determining a common fundamental frequency of two harmonic signals via a distance comparison

摘要

One embodiment of the present invention provides a method of determining an evidence value capturing whether two band-pass signals are harmonics of a common fundamental frequency. A further embodiment of the present invention evaluates the distance between significant points of a signal such as a sinusoidal signal. One embodiment of the present invention provides a method of determining whether two or more band-pass signals are harmonics of a fundamental frequency, comprising evaluating a first distance between a first set of two or more significant points of a first band-pass signal, evaluating a second distance between a second set of two or more significant points of a second band-pass signal, and comparing the first distance to the second distance to determine whether the first and second signals are harmonics of the fundamental frequency.