brightness temperature
[天物] 亮度温度
2025-10-31 02:13 浏览次数 10
[天物] 亮度温度
the formula for brightness temperature deviation, which is caused only by different working wavelengths of the standard radiation thermometer and the calibrated thermometer, is built in the article.
基于光通传递理论,根据目前照明指标的要求和各自具有的物理意义,参考现有照明计算公式,给出了亮度差的计算模型。
a brightness temperature database was setup by assigning a variety of parameters to the verified model, to simulate brightness temperature of natural corn field with different height.
模型模拟的亮度温度跟车载微波辐射仪的野外实测数据接近。
even though the window at l-band is the best choice for salinity remote sensing, the sensitivity of brightness temperature to sss is lower than that of the other variables.
盐度的被动微波辐射遥感虽然在l波段灵敏度最高,但是其在l波段的灵敏度低于其它许多变量,因此对盐度反演模型精度要求很高。
a new method is designed to obtain canopy component temperature and accurate directional brightness temperature from multidirectional thermal infrared measurements.
为了给热辐射方向性研究提供準确的组分温度分布和方向亮温数据,提出了一种新的基于热像仪的实用测量方法。
the feasibility of applying of brightness temperature approach method and continuous measurement method in practical application are verified.
初步验证了亮温逼近法及连续测量法在工程实际中应用的可行性。
this paper proves that the microwave polarization difference index(mpdi) can be used to indicate the vegetation coverage conditions with the amsr-e l2a brightness temperature data product.
以amsr-e数据为例,研究证明了微波极化差异指数(mpdi)能够反映地表植被覆盖状况。
according to the soil dielectric constant and its microwave emissivity, the soil microwave brightness temperature is deduced, and its mathematical model is given.
根据土壤介电常数及相应的微波发射率,推算出亮度温度值,并给出了数学模式。
in addition discusses other inversion algorithm of retrieving the brightness temperature including the gradient method, the dfp method and the extremum method.
另外讨论视在温度的其他几种反演算法,包括梯度迭代法、dfp法和极值法。
when the vegetation and soil system is isothermal with 293k temperature, the radiant brightness temperature increment is more than 0.8k, the maximum is 1.3k caused by cave effects.
当连续植被处于20℃同温状况时,孔穴效应引起的辐射亮度增量基本上都在0.8℃以上,最高可达到1.3℃。
fy-2 calibration in lab calibration in orbit radiometric calibration infrared brightness temperature radiance.
标签 fy-2实验室定标在轨定标场地辐射定标红外亮温辐亮度。
this paper presents an idea for the average brightness temperature of antenna aperture and its expression for a lossless antenna with matched and unmatched noise sources.
本文提出了天线口面平均亮度的概念,给出了天线终端接有匹配噪声源和非匹配噪声源时天线口面平均亮温度的表达式。
it is not always suitable to use planck「s law or stefan-boltzmann」s law to describe the relation between brightness temperature and radiance for a wide band sensor.
对于宽波段传感器,不一定能直接由普朗克定律或者斯蒂芬玻尔兹曼定律建立温度与辐射亮度的关系。
the polarized brightness temperature and the functional dependence on various parameters are obtained, and are well compared with experimental data in snow remote sensing.
得到冰雪遥感中辐射亮度温度和各物理参数之间的定量的函数关系,并与实验数据取得很好的一致。
an improved method using variance between-class and smoke plume mask is described. the brightness temperature threshold of potential fire pixels was adjusted to be 305 k.
提出一种基于火点与背景的类间方差和烟雾掩膜的红外光谱火点检测算法。
the key issue in external calibration of microwave radiometer on board satellite is the determination of brightness temperature on the pupil of antenna by using radiative transfer equation.
星载微波辐射计外定标的关键问题是通过辐射传输方程计算天线入瞳处亮温。
the microwave brightness temperature(tb) isoline, combined with the topographic contour line of ice sheet, interprets the characteristic of brightness temperature distribution in antarctica.
结合微波亮温等温线图和南极等高线图分析了南极地区亮温分布的特点。
traditionally, sensitivity is major performance parameter of microwave radiometer measurement precision, but it is not appropriate to quality assessment of single brightness temperature image.
灵敏度是传统上衡量微波辐射计测量精度的主要指标,但并不适合对单帧亮温图像的质量进行评估。
in allusion to the problems when retrievaled the brightness temperature images and temperature images, found some models to optimize them.
对亮温图像和温度图像反演中碰到的一些问题做了一些优化模型进行纠正。
the response of microwave brightness temperature parameters to typhoon's precipitation distribution and intensity is analyzed by using 2a25 and 1b11 data.
利用2a25和1b11资料,分析了微波各参数对台风降水分布和强弱的响应。