An unknown wireless digital signal carrier frequency estimation method

摘要

The present invention relates to a method of using a Fast Fourier Transform (FFT) of a method for measuring a carrier frequency of a digital digital signal carrier frequency, in which averaging is performed to obtain statistically stable FFT processing results after the FFT processing, A second step of performing curve fitting using the extracted peripheral values; a third step of extracting a maximum value of the curve fitting in the second step; And a fourth step of estimating the maximum value obtained by the linear interpolation using the following three values as the frequency of the carrier wave.