SIGNAL ANALYSIS SYSTEM AND SIGNAL ANALYSIS METHOD USING CONSECUTIVE SHIFT CONVERSION

PROBLEM TO BE SOLVED: To provide a signal analysis system and a signal analysis method using consecutive shift conversion.SOLUTION: A signal analysis system includes: a band-pass filter for filtering an input signal and obtaining a filtered signal; a sampling unit for sampling the filtered signal on the basis of a sampling frequency and obtaining a discrete signal; and a consecutive shift conversion unit for obtaining a first frequency spectrum on the basis of N discrete signals which are consecutively sampled and obtaining a second frequency spectrum on the basis of the (N+1)th discrete signal and the first frequency spectrum, with each of the first and second frequency spectra containing N results of the Fourier transform respectively.