光散射学报, 2017, 29 (3): 203, 网络出版: 2017-11-07  

各向异性介质辐射特性参数联合反演

Joint Inversion of Radiative Properties of Anisotropic Medium
作者单位
南京理工大学 能源与动力工程学院,南京210094
摘要
本文基于BP神经网络方法结合蒙特卡洛和BEER定律辐射传输模拟方法建立了联合反演各向异性散射介质的辐射特性参数模型。首先采用半球透射率结合半球反射率反演模型反演了各向同性介质的吸收系数和散射系数,在此基础上增加准直透射率,建立了联合反演各向异性介质的吸收系数、散射系数和散射不对称因子三参数联合反演模型。反演结果表明该模型能准确反演出介质辐射特性参数,具有实用意义。此外,为了检验测量误差对模型的反演准确性的影响,分别在不同程度测量误差情况下进行反演,结果显示测量误差对散射不对称因子反演值影响较大。
Abstract
The joint inverse model of radiative characteristic parameters of anisotropic scattering medium was established used BP neural network method combined with the Monte Carlo method and BEER law.Firstly,the scattering and absorption coefficients of the isotropic medium were inversed by the combination of the hemispherical transmittance and reflectance,then the collimated transmittance was added to the measurement parameters.The absorption coefficient,scattering coefficient and scattering asymmetry factor of anisotropic medium were inversed by the joint inverse model based on the hemispherical transmittance,reflectance and collimated transmittance.The inverse results show that this model,which has practical significance,can inverse three radiative characteristic parameters of anisotropic medium accurately.What’s more,the measurement error was taken into account.In the case of different degree of measurement error,the results show that the measurement error has a great influence on the inversion of the scattering asymmetry factor.
参考文献

[1] 谈和平,刘林华,易红亮,等.计算热辐射学的进展[J].科学通报,2009(18):2627-2637.(Tan Heping,Liu Linhua,Yi Hongliang,et al.The progress of the thermal radiation study[J].Chin Sci Bull,2009(18):2627-2637).

[2] Liu L H,Tan H P,Yu Q Z.Inverse radiation problem of sources and emissivities in one-dimensional semitransparent media[J].Int J Heat Mass Transfer,2001,44(1):63-72.

[3] Liu L H,Tan H P,Yu Q Z.Simultaneous identification of temperature profile and wall emissivities in one-dimensional semitransparent medium by inverse radiation analysis[J].Numer Heat Tr Aappl,2010,36(5):511-525.

[4] Fu T,Tang J,Chen K,et al.Visible,near-infrared and infrared optical properties of silica aerogels[J].Infrared Phys Technol,2015,71:121-126.

[5] Lallich S.Experimental determination and modeling of the radiative properties of silica nanoporous matrices[J].J Heat Transfer,2009,131(3):136-138.

[6] 任登凤,宣益民,韩玉阁.二氧化硅气凝胶辐射特性反演方法研究[J].工程热物理学报,2016(6):1290-1296.(Ren Dengfeng,Xuan Yimin,Han Yuge.Research on an inverse method of radiative properties of sillica aerogel[J].J Eng Thermophys,2016(6):1290-1296).

[7] 舒银银.半透明固体材料高温光谱辐射特性测量方法研究[D].南京:南京理工大学,2015.(Shu Yinyin.Study on the measurement method of spectral radiative properties of semitransparent solid materials at high temperature[D].Nanjing:Nanjing University of Science & Technology,2015).

[8] Liu D,Yan J H,Wang F,et al.Inverse radiation analysis of simultaneous estimation of temperature field and radiative properties in a two-dimensional participating medium[J].Int J Heat Mass Transfer,2010,53(21):4474-4481.

[9] 张彪.激光作用下半透明介质光热信息模拟及反问题研究[D].哈尔滨:哈尔滨工业大学,2014.(Zhang Biao.Photothermal signal simulation for laser-irradiated semi- transparent media and its inverse problems[D].Harbin:Harbin Institute of Technology,2014).

[10] 刘奇.生物组织光学模型的蒙特卡罗模拟研究[D].武汉:武汉理工大学,2013.(Liu Qi.Research on biological tissue optical model by monte carlo simulation[D].Wuhan:Wuhan University of Technology,2013).

[11] Zeng J S Q,Greif R,Stevens P,et al.Effective optical constants n and κ and extinction coefficient of silica aerogel[J].J Mater Res,1996,11(3):687-693.

[12] Kamiuto K.Study of the Henyey-Greenstein approximation to scattering phase functions[J].J Quant Spectrosc Radiat Transfer,1987,37(4):411-413.

[13] Qi H,Ruan L M,Zhang H C,et al.Inverse radiation analysis of a one-dimensional participating slab by stochastic particle swarm optimizer algorithm[J].Int J Therm Sci,2007,46(7):649-661.

[14] Wang L H,Jacques S L,Zheng L Q.MCML-Monte Carlo modeling of light transport in multi-layered tissues[J].Computer Methods and Programs in Biomedicine,1995,47(2):131-146.

[15] 谈和平,夏新林,刘林华,等.红外辐射特性与传输的数值计算:计算热辐射学[M].哈尔滨:哈尔滨工业大学出版社,2006.(Tan Heping,Xia Xinlin,Liu Linhua,et al.Numerical computation of infrared radiative property and transfer-computational radiation[M].Harbin:Harbin Insititute of Technology Press,2006:18-19).

吴志义, 李佳玉. 各向异性介质辐射特性参数联合反演[J]. 光散射学报, 2017, 29(3): 203. WU Zhiyi, LI Jiayu. Joint Inversion of Radiative Properties of Anisotropic Medium[J]. The Journal of Light Scattering, 2017, 29(3): 203.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!