粗糙海面星载微波视在亮温仿真模型  

Simulation Model of Satellite-borne Microwave Apparent Brightness Temperature over Rough Sea Surface

作　　者：于振涛[1] 姜浩 许素芹[1] 李婷婷 YU Zhentao;JIANG Hao;XU Suqin;LI Tingting(PLA Naval Submarine Academy,Qingdao 266100,China)

机构地区：[1]海军潜艇学院,青岛266100

出　　处：《微波学报》2024年第2期51-57,共7页Journal of Microwaves

基　　金：国家自然科学基金(U2241201)。

摘　　要：针对新型星载微波辐射计论证需求,通过研究平静和粗糙海面发射率模型,结合大气辐射模型,建立了典型波段的星载微波视在亮温数学模型,设计了视在亮温仿真模型总体方案,以及平静海面发射率、风速影响发射率、风向影响发射率和辐射传输仿真计算模块方案,开发了星载微波辐射计视在亮温仿真软件,实现了不同大气、海面风、传感器参数条件下的星载微波辐射计海面视在亮温仿真计算,验证了仿真模型的可行性,为星载微波辐射计星地一体化仿真论证提供了技术支撑。In view of the demonstration requirements of the new satellite-borne microwave radiometer,a mathematical model of the apparent brightness temperature for typical bands is established by studying the emissivity models of calm and rough sea surfaces,combined with the atmospheric radiation model.The overall scheme of the apparent brightness temperature simulation model as well as the schemes for the emissivity simulation calculation modules of calm sea surface,wind speed affecting emissivity,wind direction affecting emissivity,and radiation transmission are designed.A simulation software for the apparent brightness temperature of the satellite-borne microwave radiometer is developed,enabling simulation calculations of the apparent brightness temperature under different atmospheric,sea surface wind,and sensor parameter conditions.The feasibility of the simulation model is verified,providing technical support for the integrated simulation demonstration of the satellite-borne microwave radiometer.

关 键 词：星载微波辐射计 视在亮温 仿真计算 

分 类 号：P714[天文地球—海洋科学] P407.7