Ishimaru A, Jaruwatanadilok S, Kuga Y
Appl Opt. 2001 Oct 20;40(30):5495-502. doi: 10.1364/ao.40.005495.
In recent years there has been increasing interest in the use of polarization for imaging objects in a cluttered environment. Examples are optical imaging through clouds, optical detection of objects in a biological medium, and microwave detection of objects in clutter. We extend previous studies of continuous-wave scattering to pulse-polarization scattering in discrete scatterers. We solve the time-dependent vector radiative transfer equation for a plane-parallel medium by using Mie scattering and the discrete ordinates method. The time-dependent degree of polarization and cross-polarization discrimination are calculated and verify the advantages of circular over linear polarization in maintaining greater copolarized components rather than cross-polarized components.
近年来，人们对利用极化在杂乱环境中成像物体的兴趣与日俱增。例如，通过云层进行光学成像、在生物介质中对物体进行光学检测以及在杂波中对物体进行微波检测。我们将之前对连续波散射的研究扩展到离散散射体中的脉冲极化散射。我们通过使用米氏散射和离散坐标法求解平面平行介质的时间相关矢量辐射传输方程。计算了时间相关的极化度和交叉极化鉴别率，并验证了圆极化相对于线极化在保持更大的共极化分量而非交叉极化分量方面的优势。
