微波辐射计对月面特征参数的遥感理论模拟

Simulation for remote sensing of the lunar soil and rock by using multi-channels microwave radiometers

根据现有的多通道被动辐射计技术 ,讨论微波辐射遥感月壤月岩特征参数的几个问题。由半空间非均匀温度、介电廓线分布的耗散介质的月壤模型与WKB方法 ,计算了月壤的多通道微波辐射传输的权重函数与相应的穿透深度。提出模拟多层月壤月岩的多层密集粒子介质辐射传输的一种建模 ,在各有关参数条件下计算了各通道的多层月壤月岩辐射亮度温度。并以此结果为理论观测 ,讨论了月壤厚度等参数反演可予以实施的方法。

Several issues on microwave remote sensing of the lunar soil and rock are discussed based on multi channels microwave radiometer technology. The penetra tion depth and weighting functions of thermal radiative transfer are presented by using the half space model with non uniform profiles of temperature and dielectric properties in the WKB approach. The model of multi layers dense media is developed for numerical simulation of polarized brightness temperature from layering lunar soil and rock. Numerical simulations show the functional dependence of relevant physical parameters. Inversion of the surface depth of lunar soil layer is also discussed.