基于完整的瞬态辐射传输方程,采用有限体积法模拟Gauss脉冲入射下各向异性散射光学厚平板介质的时间分辨峰值反射信号。研究表明,随着无量纲脉冲宽度的增加,无量纲反射率峰值信号呈现Boltzmann函数分布,根据拟合的Boltzmann函数,能够较为准确地重建峰值反射信号。
Based on the complete transient radiative transfer equation and the finite volume method, the time-resolved peak reflection signals were simulated when a beam of Gaussian pulse incident on the anisotropic scattering optical thick plate medium. The results show that with the increase of dimensionless pulse width, the distribution of dimensionless reflected peak signals can be fitted as the Boltzmann function. According to the fitting Boltzmann function, the peak reflection signal could be reconstructed accurately.