Figure 1From: Approximating the Time-Frequency Representation of Biosignals with Chirplets(a) WVD of two chirplets , and . (b) Representation of chirplets in ambiguity space. Cross-terms are located between the chirplets in the WVD, while in ambiguity space they are located away from the origin. (c) Radon transformation in the neighbourhood of the origin (). (d) Optimal kernel in the ambiguity space. (e) Resulting time-frequency representation. (f) Smoothed pseudo-Wigner-Ville distribution of the signal. Reduction in energy localization is noticeable in this representation.Back to article page