Spectral analysis

摘要

A method of processing an input signal (s(t)) for performing spectrum analysis is disclosed. The input signal comprises a desired signal and an interference signal. A crosslation is performed (in XLA) to process an input signal to efficiently produce discrete-time crosslation function values for the input signal. A Fourier Transform is then performed (in FST) to generate frequency-dependent values. The method is particularly useful when the interference is of an impulsive or transient nature.