[4] Philip Antwi, LI Jianzheng, Portia Opoku Boadi, et al. Estimation of biogas and methane yields in an UASB treating potato starch processing waste water with backpropagation artificial neural network[J]. Bioresource Technology, 2017, 228: 106-115.

[5] YU Xin, LV Ruihong, SONG Fang, et al. Pocket-sized nondispersive infrared methane detection device using two-parameter temperature compensation[J]. Spectroscopy Letters, 2014, 47(1): 30-37.

[6] Reich S L, Gomez D R, Dawidowski L E. Artificial neural network for the identification of unknown air pollution sources[J]. Atmospheric Environment, 1999, 33(18): 3045–3052.

[7] SHAO Jie, TANG Qianjin, CHENG Cheng, et al. Remote detection of alcohol concentration in vehicle based on TDLAS[C]//Symposium on Photonics and Optoelectronic, 2010: 1-3.

[9] KAN Ruifeng, LIU Wenqing, ZHANG Yujun, et al. Large scale gas leakage monitoring with tunable diode laser absorption spectroscopy[J]. Chin. Opt. Lett., 2006, 4(2): 116-118.