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Signal Analysis




Perhaps the most common form of signal analysis is the Fourier Transformation of a temporal signal into the frequency domain to obtain the Frequency Spectrum of the signal. Many other transforms can be used for signal analysis, in particular Time-frequency Representations such as the Windowed Fourier Transform and Continuous Wavelet Transform . Other forms of signal analysis include parametric fitting, such as finding the Least-squares best-fit.

Multi-scale signal analysis is the extraction of information from a signal with a varying degree, coarseness, or fineness. It is analogous to the different resolution settings on a Computer Display .