Feature Extraction of Ship Radiation Signals Based on Wavelet Packet Decomposition and Energy Entropy

Figure 6

CF of each FB for the four types of SRS. (a) FB1. (b) FB2. (c) FB3. (d) FB4. (e) FB5. (f) FB6. (g) FB7. (h) FB8.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)