Measuring multi-tone signal frequencies and amplitudes involves computing filter coefficients for minimal output power as signal passes through combination of notch filter models defined by coefficients

摘要

The method involves using the multi-tone signal to compute a number of filter coefficients of notch filter models corresponding to the number of frequencies (w1,w2). The filter coefficients are computed so that the output power is minimal when the multi-tone signal passes through a combination of notch filter models defined by the filter coefficients. AN Independent claim is also included for a device for measuring frequencies and amplitudes of multi-tone signals.