Laser Doppler Signal Denoising Based on Wavelet Packet Thresholding Method

Figure 6

RMSE comparison of four threshold rules in low-frequency range. (a) SNR of original signal is 0 dB. (b) SNR of original signal is 5 dB. (c) SNR of original signal is 10 dB.

(a)

(b)

(c)