A method of identifying a spectrum and extracting features thereof for RF signals in an ultra-wide bandwidth comprising the steps of (a) obtaining said RF signal to be analyzed; (b) high-pass filtering said obtained signal; (c) digitizing said high filtered signal; and (d) analyzing said digitized signal. The method further comprises a step of spectrum compressing (SC) including splitting said high pass filtered signal into two channels and Phase true-time delay modulating (shifting) said signal within one of said channels.
