Figure 2From: Approximating the Time-Frequency Representation of Biosignals with Chirplets(a) Spectrogram of a frequency-modulated signal. (b) Wigner-Ville representation of the signal (negative energies discarded). (c) Result of proposed method. (d) Choi-Williams representation of the signal. (e) Decomposition of signal in terms of seven chirplets.Back to article page