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

二次谐波光谱降噪信号及特征值随信噪比变化关系 (a): 降噪后的二次谐波信号; (b): 峰值差; (c): 峰谷值差; (d): 峰位差; (e): 信噪比改善; (f): 均方根误差