吸收光谱线二次谐波的频率分解和SG滤波复合降噪

涂兴华, 栾小晨, 王战

Denoising of Second Harmonic Signals of the Absorption Spectrum Using the Frequency Decomposition Combined With the Savitzky⁃Golay Filtering

TU Xing-hua, LUAN Xiao-chen, WANG Zhan

含噪信号的频率分解及其相应频谱 (a): IMF1; (b): IMF2; (c): IMF1的频率分布; (d): IMF2的频率分布