| 1. | 2 . based on the radiation transfer equation , light scattering by coating layer is studied by using monte carlo method 2 、基于辐射输运方程,运用蒙特卡罗方法研究具有任意涂层的光散射。 |
| 2. | The hydrometeor information from the cloud model is then used as input into a 3 - d microwave radiation transfer model that calculates the upwelling radiance received by the rediometer aboard the satellite 将云模式模拟的水汽凝结体信息作为三维微波辐射传输模式的输入值,计算星载微波辐射计接受到的上行辐射。 |
| 3. | The apparent reflectance algorithm estimates the clear - sky visible apparent reflectance as the bases of visible channel thresholds with the 6s radiation transfer model . cloud detection is tested with apparent reflectance algorithm to gms5 images 将表观反射率乘以不同的系数得阈值,待检测云图的表观反射率大于阈值的像元为云像元。 |
| 4. | First , this thesis studied the performance of the image processing system , such as the color principle of ccd camera , the radiation transfer principle of system , geometry optics model of system and so on . then the system hardware frame was established 首先,本文充分研究了火焰图像处理系统中彩色ccd的工作原理、色度学原理、成像系统的辐射度学原理、几何光学模型以及数字化成像原理,并建立了燃烧可视化监控系统的硬件框架。 |
| 5. | The equation of the radiation transfer between two surfaces indicates that there are three factors that have influence on radiation transfer : brdf , projected solid angle ( psa ) , and incident radiation flux . thereafter , a new baffle system design idea is put forward 本文首先介绍了光学系统杂光的抑制措施,从光辐射在两个表面传递的基本能量传输方程出发,指出影响辐射能量传输的三个因子:双向反射分布系数brdf 、投影立体角psa和入射辐射通量。 |
| 6. | The surface solar total radiation is first calculated when albedo is fixed under clear - sky varying atmospheric conditions by using the radiation transfer model and the model atmosphere profile of the middle latitude summer , and a parameterization scheme is then proposed based on the result 首先利用辐射传输模式和中纬度夏季标准大气廓线,分谱带计算晴天各种大气条件下地表反射率取定值时的地表太阳总辐射,并把所得的结果作为标准资料,提出参数化方案。 |
| 7. | Roughly acquire optical depth of clear sky and clouds from radiation station data and routine meteorological data of land surface , and the study the relationship between clouds " physical character and radiation . obtain the relationship between surface and near - ground atmosphere , and then according to this estimate surface albedo and surface net . by analyzing the relationship between satellite visible spectra , infrared spectra , and water vapor spectra values and radiation , by means of radiation transfer theory , analyze and deducethe relationship between clouds and radiation , and establish relationships between satellite value and global radiation and net 通过卫星云图的计数值来判断云对辐射的作用,以此建立起它们之间的关系;利用地面观测资料和常规资料来粗略求取晴空大气和云光学厚度,进而研究云的物理属性与辐射关系;简单的获取地表与近地面大气之间的辐射关系,以此估算地表的反照率,和地表的净辐射;分析了卫星可见光、红外及水汽云图计数值和地面辐射之间关系,利用辐射传输公式来推倒和分析云对辐射的关系,试图建立起卫星测值与地表总辐射和净辐射之间的关系,并将晴空和有云的个例分开,分别建立并选出最佳模式,以此来估算地表的净辐射和总辐射。 |
| 8. | In this thesis a three - dimensional cloud model - microwave radiation transfer model combination is used to study the relations among the precipitation , other microphysical characteristics of a convective cloud system and the upwelling radiance at pertinent microwave frequencies . the results of the model are preliminarily compared with trmm products 本文利用对流性降水云微物理模式和三维微波辐射传输模式,研究了中国陆地上暴雨系统的微物理结构,以及在特定的微波频率对流性降水云的降水强度、云中各种微物理量与上行辐射之间的关系。 |
| 9. | Based on the viewpoint of interaction between waves in plasmas , the partial differential equation that causes the spectral lines broadening has been deduced from radiation transfer equation of high - frequency electromagnetic waves in plasmas . the numerical solution has been obtained by using the fortran program we compiled . we concretely calculated the spectral lines widths of and fraunhoferx 3704 in corona , fj / a4923 . 9 in dwarf nova oy car and f . / a4934 in the variable star rr lyrae 本文从等离子体波与波相互作用观点出发,由高频电磁波辐射转移方程导出了引起谱线宽度变化的偏微分方程,编写fortran程序求解偏微分方程的数值解,具体计算了日冕绿线f _ exiv 5303和夫朗禾费线3704 、矮新星oycarf _ eii 4923 . 9 、天琴rr型变星f _ ei 4934的谱线加宽值,对以上各谱线加宽中的等离子体致宽效应作了初步计算。 |
| 10. | The standard equipment is a large and complex system including radiation standard , radiation transfer standard and comparison equipment . in the course of founding the standard equipment , we apply infrared technique , laser technique , weak signal detection technique , precision machining and computer technique 该标准装置包括:辐射基准、辐射传递标准及比较测量装置,是一个庞大而复杂的系统,包含了红外技术、激光技术、小信号探测器技术、精密机械加工及计算机技术。 |