Chaotic Signal Denoising Based on Adaptive Smoothing Multiscale Morphological Filtering

Figure 11

Phase diagrams for the sunspot signal: (a) observation data; (b) the noise reduction result by EMD thresholding; (c) the noise reduction result by wavelet thresholding; (d) the noise reduction result by AMMF; (e) the noise reduction result by ASMMF.

(a)

(b)

(c)

(d)

(e)