Simulation of Passive Microwave Penetration Features in Dry Medium

摘要：

The simulation of passive microwave penetration features in dry medium is very important to estimate the dry medium thickness,especially to retrieve the lunar regolith thickness,which is one of the Chinese lunar exploration missions.Based on layered dry medium model and radiative transfer equation,the microwave penetration features in dry medium are studied in the paper. The results show that the microwave can penetrate bigger depth in low frequencies than that in high frequencies. There exists a maximum penetration thickness th(max)(f)to every frequency,and th(max)(f) declines sharply with the increasing of frequency. The brightness temperature increases monotonically with the dry medium thickness if the thickness is smaller than th(max)(f). The dielectric constants of the dry medium play an important roleInevaluating the microwave penetration features. According to the results,a look-up table between dry medium thickness and brightness temperature is generated,which providesA new and efficient way to extract the thickness of dry medium.

关键词： Dry Medium Thickness Passive Microwave Technique Radiative Transfer Equation Penetration Features Look-up Table

作者: Z.Meng S.Chen C.Liu X.Du Z.Wang

作者单位: Department of Remote Sensing Jinlin University,Changchun,130026,China

会议类型: 国际会议

会议名称: 2008 International Conference on Microwave and Millimeter Wave Technology(2008国际微波毫米波技术会议)

会议地点: 南京

会议语种:英文

页码: 1680-1682

在线出版日期: 2008-04-21（万方平台首次上网日期，不代表论文的发表时间）