[1] [1] ZHANG J Q. The research on measurement technology of carbon monoxide gas concentration based on TDLAS［D］. Chengdu: University of Electronic Science and Technology of China,2011:19-35(in Chin-ese).

[2] [2] WANG X M. Measurement of CO2 concentration based on TDLAS［D］. Beijing: North China Electric Power University (Beijing),2017:1-5(in Chinese).

[3] [3] ZHANG K K. Research on the spectrum absorptive optical gas detection theory and technology［D］. Harbin: Harbin Engineering University,2012:26-39(in Chinese).

[4] [4] SUPPLEE J M, WHITTAKER E A, WILFRIED L, et al. Theoretical description of frequency modulation and wavelength modulation spectroscopy［J］. Applied Optics,1994,33(27): 6294-6302.

[5] [5] KLUCZYNSKI P, AXNER O. Theoretical description based on Fourier analysis of wavelength-modulation spectrometry in terms of analytical and background signals［J］. Applied Optics,1999, 38(27):5803-5815.

[6] [6] WERLE P W, MAZZINGHI P, AMATO F D, et al. Signal processing and calibration procedures for in situ diode-laser absorption spectroscopy ［J］. Spectrochimica Acta, 2004,A60(2):1685-1705.

[7] [7] GAO N, DU Zh H, TANG M, et al. System parameters selection and optimization of tunable diode laser absorption spectroscopy［J］. Spectroscopy and Spectral Analysis,2010,30(12): 3174-3178(in Chin-ese).

[8] [8] SU M R, LI X L, SUN Q Zh, et al. Simulation and experimental investigation on spectrum absorption of TDLS based CO2 sensor［J］. Instrument Technique and Sensor, 2016(7):4-7(in Chinese).

[9] [9] SHANG H F, DU Zh H, GAO N, et al. Parameter analysis of tunable diode laser absorption spectroscopy based on spectral frequency cha-racteristics［J］. Spectroscopy and Spectral Analysis,2019,39(11): 3359-3364(in Chinese).

[10] [10] ARNDT R. Analytical line shapes for Lorentzian signals broadened by modulation［J］. Journal of Applied Physics, 1965, 36(8): 2522-2524.

[11] [11] ZHANG X, CAO Sh Y, GUO T X, et al. Research of methane vo-lume fraction field reconstruction based on tunable diode laser absorption spectroscopy detection technology［J］. Laser Technology, 2018,42(4):577-582(in Chinese).

[12] [12] ZHAI W, WU Sh Q, DONG Y H, et al. Effect of FM-AM phase difference on the second harmonic lineshape of TDLAS［J］. Laser Technology, 2013,37(3):284-288(in Chinese).

[13] [13] GONG X Ch, GAO Y F, YANG J, et al. Parameter optimization of TDLAS wavelength modulation pressure measurement method［J］. Optical Technique, 2020,46(2):134-139(in Chinese).

[14] [14] ALORIFI F, GHALY S M A, SHALABY M Y, et al. Analysis and detection of a target gas system based on TDLAS & LabVIEW ［J］. Engineering Technology & Applied Science Research,2019,9(3): 4196-4199.

[15] [15] LIU X L. The digital signal processing and analysis based on TDLAS［D］. Chengdu: University of Electronic Science and Technology of China,2015:58-71(in Chinese).

[16] [16] YUAN Zh G, MA X Zh, LIU X N, et al. Testing on diesel engine emission temperature using tunable laser absorption spectroscopy technology［J］. Chinese Optics, 2020,13(2):281-289(in Chin-ese).

[17] [17] LI H, LIU J G, HE Y B, et al. Simulation and analysis of second-harmonic signal based on tunable diode laser absorption spectroscopy［J］. Spectroscopy and Spectral Analysis,2013,33(4): 881-885(in Chinese).

[18] [18] LI C R. The research based on TDLAS to diesel engine SCR ammonia pollution detection system［D］. Tianjin: Tianjin University of Science and Technology,2017:31-39(in Chinese).

[19] [19] DONG Y H, WU Sh Q, ZHAI W, et al. Effect of modulated phase difference on TDLAS signal-to-noise ratio［J］.Laser Technology, 2013,37(4):498-502(in Chinese).

[20] [20] YUAN D Ch. Research on fire forest early detection technology based on TDLAS method［D］. Harbin: Northeast Forestry University,2018:83-98(in Chinese).

[21] [21] ZHANG B Q, XU Zh Y, LIU J G, et al. Modulation characteristics of laser based on wavelength modulation technology［J］. Spectroscopy and Spectral Analysis,2019,39(9): 2702-2707(in Chinese).

[22] [22] ZHANG Ch X.O2 and CO sensing based on tunable diode laser absorption spectroscopy［D］. Hangzhou: Zhejiang University,2010:47-67(in Chinese).

[23] [23] ZHENG F, QIU X B, SHAO L G, et al. Measurement of nitric oxide from cigarette burning using TDLAS based on quantum cascade laser［J］. Optics and Laser Technology,2020,124:105963.

[24] [24] LI Ch L, WU Y F, QIU X B. Pressure-dependent detection of carbon monoxide employing wavelength modulation spectroscopy using a herriott-type cell ［J］. Applied Spectroscopy, 2017,71(5): 809-816.

[25] [25] LI Ch L, SHAO L G, JIANG L J, et al. Simultaneous measurements of CO and CO2 employing wavelength modulation spectroscopy using a signal averaging technique at 1.578m［J］. Applied Spectroscopy,2018,72(9): 1380-1387.