LI Han, LIU Jian-guo, HE Ya-bai, HE Jun-feng, YAO Lu, XU Zhen-yu, CHEN Jiu-ying, YUAN Song, KAN Rui-feng. Simulation and Analysis of Second-Harmonic Signal Based on Tunable Diode Laser Absorption Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2013, 33(4): 881