An Efficient Adaptive Window Size Selection Method for Improving Spectrogram Visualization

Figure 2

(a) Time domain representation of 40 Hz and 100 Hz combined signal for 2 seconds; (b) Fourier transform of part (a); (c) time domain representation of 40 Hz signal for first two seconds and 100 Hz signal for next two seconds; (d) Fourier transform of part (c).

(a)

(b)

(c)

(d)