[1] [1] ZOU D B, CHEN W L, DU Zh H, et al. Selection of digital filtering in the escaping ammonia monitoring with TDLAS［J］.Spectroscopy and Spectral Analysis, 2012, 32(9): 2322-2326(in Chinese).

[2] [2] LIU F D, SHAN W P, SHI X Y, et al. Reseach progress in vanadium-free catalysts for the selective catalytic reduction of NO with NH3[J]. Chinese Journal of Catalysis, 2011, 32(7): 1113-1128(in Chinese).

[3] [3] MA F N, CHENG W Q. The discharge status and controlling measures of nitrogen oxides of thermal power plants in China ［J］. Guangzhou Chemical Industry, 2011, 39(15):57-59(in Chinese).

[4] [4] SRIVASTAVA R K, HALL R E, KHAN S, et al. Nitrogen oxides emission control options for coal-fired electric utility boilers ［J］. Air Repair, 2005, 55(9):1367-1388.

[5] [5] ZHANG X, CAO Sh Y, GUO T X, et al. Research of methane volume fraction field reconstruction based on tunable diode laser absorption spectroscopy detection technology ［J］. Laser Technology, 2018, 42(4):577-582(in Chinese).

[6] [6] YANG B, HE G Q, LIU P J, et al. Research progress of tunable di-ode laser absorption spectroscopy for combustion diagnostics ［J］. Laser Technology, 2011,35(4):503-510(in Chinese).

[7] [7] 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).

[8] [8] SUN K, SUR R, CHAO X, et al. TDL absorption sensors for gas temperature and concentrations in a high-pressure entrained-flow coal gasifier［J］. Proceedings of the Combustion Institute, 2013, 34(2):3593-3601.

[9] [9] CHAO X, JEFFRIES J B, HANSON R K. Development of laser absorption techniques for real-time, in-situ, dual-species monitoring (NO/NH3, CO/O2) in combustion exhaust ［J］. Proceedings of the Combustion Institute, 2013, 34(2):3583-3592.

[10] [10] CHAO X, JEFFRIES J B, HANSON R K. In situ absorption sensor for NO in combustion gases with a 5.2μm quantum-cascade laser ［J］. Proceedings of the Combustion Institute, 2011, 33(1):725-733.

[11] [11] YING H E, ZHANG Y J, YOU K, et al. Study on hydrogen fluoride at high temperature detection method with temperature correction based on laser technology［J］. Spectroscopy & Spectral Analysis, 2017,37(3):964-970..

[12] [12] NIE W, KAN R F, XU Zh Y, et al. Measuring spectral parameters of water vapor at low temperature based on tunable diode laser absorption spectroscopy[J].Acta Physica Sinica , 2017, 66(20):91-96. (in Chinese).

[13] [13] ZHANG L F, WANG F, YU L B, et al. The research for trace ammonia escape monitoring system based on tunable diode laser absorption spectroscopy ［J］.Spectroscopy and Spectral Analysis, 2015, 35(6): 1639-1642(in Chinese).

[14] [14] MA Y, HE Y, ZHANG L, et al. Ultra-high sensitive acetylene detection using quartz-enhanced photoacoustic spectroscopy with a fiber amplified diode laser and a 30.72kHz quartz tuning fork ［J］. Applied Physics Letters, 2017, 110(3):031107.

[15] [15] TU X H, LIU W Q, ZHANG Y J, et al. Second-harmonic detection with tunable diode laser absorption spectroscopy of CO and CO2 at 1.58μm［J］. Spectroscopy and Spectral Analysis, 2006, 26(7): 1190-1194(in Chinese).

[16] [16] LI C L, WU Y, QIU X B, et al. Pressure-dependent detection of carbon monoxide employing wavelength modulation spectroscopy using a herriott-type cell ［J］. Applied Spectroscopy, 2017, 71(5): 809-816.

[17] [17] LI N, QIU X B, WEI Y B, et al. A portable low-power integrated current and temperature laser controller for high-sensitivity gas sensor applications ［J］. Review of Scientific Instruments, 2018, 89(10): 103103.

[18] [18] YE W L, ZHENG Ch T, WANG Y D. Stability measurement and temperature compensation of mid-infrared methane detection device ［J］. Acta Optica Sinica, 2014, 34(3): 0323003(in Chinese).

[19] [19] ALLAN D W. Statistics of atomic frequency standards［J］.Proceedings of the IEEE, 1966, 54(2): 221-230.

[20] [20] DANG J M, HU H Y, SONG F, et al. An early fire gas sensor based on 2.33μm DFB laser ［J］. Infrared Physics and Technology, 2018, 92(5):84-89.