Signal Denoising Method Based on Improved Wavelet Threshold Function for Microchip Electrophoresis C⁴D Equipment

Table 2

Comparison results of simulation signal denoising with different methods.

Parameter	Savitzky–Golay	Fast Fourier transform	Soft threshold method	Proposed method	SNR of noisy signal (dB)
SNR	54.6092	59.2802	65.1503	71.4715	21
RMSE	0.0392	0.0310	0.0231	0.0169
SNR	64.0419	70.9654	74.6367	78.6393	25
RMSE	0.0245	0.0173	0.0144	0.0118
SNR	72.1866	76.0289	80.9725	85.7153	29
RMSE	0.0163	0.0134	0.0105	0.0083