[仿真]Microwave Transfer Models and Brightness temperature simulations of MWS for Remote

Abstract－China has launched a microwave radiometer %:DH_0  
(MWS) to the Moon orbit to detect regolith information of the E;m-^dxc  
lunar surface. It is the first time that humankind directly DUAI  
applies sensed brightness temperature to investigate the lunar T08SGB]  
surface information by passive microwave sensor on lunar 8}^R jMgI  
orbit. Therefore, it is necessary to set up theoretical models to m! 3e>cI  
describe lunar surface microwave transfer process, as well as  s_p\ bl.  
heat conduction. These models will finally used for retrieving uE]kv  
lunar surface information on regolith depths. &.ilku/  
In this paper, we will derive a microwave radiative -!C9x?gNY  
transfer model for simulating MWS brightness temperature. wUj#ACqB  
We solve numerically the integral equation of the lunar soil by `L=d72:  
dividing the soil into many layers, and at each layer, emission, lDV}vuM<4  
multi-reflection, and attenuation to the sub-layer radiation are Ei Yj`P  
all summed into a formula. The contributions of the $r'PYGn  
underlying rock are also included for evaluating the amount ~kJ}Z<e  
of brightness temperature due to soil depth variation. ! /^Jma7n  
Because it is necessary to learn about temperature v95O)cC:W  
distribution of lunar near surface layers for brightness KH~o0 W  
temperature simulation, we simulate all the profiles from C=sEgtEI  
surface to 6m depth of lunar surface from the North polar to He}uE0^  
the Equator of lunar using heat conduction equation with =u.jZ*u]WT  
latest models of density, specific heat, and heat conductivity of l, [cR?v  
lunar regolith. T|L_+(M{  
Finally, Some simulated brightness temperatures at &Se!AcvKF  
different location of lunar surface are given by our mode .. b":3J)Y6.  
j$5S_]2  

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