亮温度

天线口面的平均亮温度

Average brightness temperature of antenna aperture

极高的亮温度意味着起作用的发射机制一定是相干的。

The high brightness temperature of the pulsar radio emission implies that the underlying emission mechanism must be coherent .

利用1998年和1999年前汛期GMS-5红外云图探讨亮温度与地面雨强关系。

The relationship between rainfall intensity and cloud top temperature is discussed by using GMS-5 IR image in 1998 ~ 1999 during the first rainy season .

结果表明：地面雨强随着亮温度降低，降水强度逐渐加大，出现强降水的几率增多；

The results indicate that the rainfall intensity and frequency of heavy-rain raises when cloud top temperature decreases .

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。

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 .

观测亮温度的平均值分布在很小的范围，所以观测亮温度和多普勒因子间存在明显的相关性。

The distribution of the observed brightness temperature has a very small dispersion with a mean value . It shows that there is a significant correlation of the observed brightness temperature and Doppler factors .

该式表明，无耗天线口面的平均亮温度仅与三个因素有关：噪声源的噪声温度，噪声源的反射系数和天线的面积利用系数。

The expressions show that the average brightness temperature of antenna aperture relates with three factors : coefficient of useful area for antenna , noise temperature of noise sources and reflective coefficient of noise sources .

第三章，理论分析地表比辐射率对地气系统总的辐射亮温度的影响，结果表明其影响大小主要取决于大气透过率；

In the third section , based on radiation transmission theory , the impact of land emissivity on the brightness temperature emitted by earth-atmosphere is deduced . The result is that the impact is depended on the atmosphere transmissivity .

目前，已研究出许多使用被动微波辐射计反演土壤水分的方法，这些方法大部分是围绕着土壤湿度与亮温温度之间的关系进行，同时也考虑其它各种不同因子对地表微波辐射的影响。

Different soil moisture retrieval approaches have been developed to account for the various parameters contributing to the surface microwave emission .

此外，LandsatETM+热红外数据反演的地面亮温能够反映温度场的分布规律，可为城市热环境质量评价和热源调查提供准确、丰富的信息。

Furthermore , the ground radiation temperature derived from Landsat ETM + thermal data can show the spatial distribution pattern of temperature and provide accurate , plentiful information for urban heat environment evaluation and heat source inquiry .

从118.75GHz附近六通道亮温反演大气温度廓线的数值模拟研究

Numerical Simulation of Temperature Profile Retrievals from the Brightness Temperatures in 6 Channels near 118.75 GHz

神舟4号飞船微波辐射计亮温反演海面温度、风速和大气水汽含量

Retrievals of Sea Surface Temperatures , Wind Speeds , Volume Water Vapor Contents From SZ-4 RAD Brightness Temperatures

利用神经网络从118.75GHz附近通道亮温反演大气温度

Retrieval of atmospheric temperature profiles with neural network inversion of microwave radiometer data in 6 channels near 118.75 GHz

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。

In allusion to the problems when retrievaled the brightness temperature images and temperature images , found some models to optimize them .

为了准确快速地从118.75GHz附近六通道亮温计算大气温度，作者开展了利用人工神经网络技术反演大气温度的数值模拟研究。

In order to retrieve atmospheric temperature profiles accurately and rapidly from 6 channels near 118.75 GHz , a numerical simulation study has been conducted using artificial neural networks .

这一结果说明，卫星红外亮温与地面温度是有差异的，大气对卫星红外亮温的影响是很大的，进行卫星热红外地震异常分析时不能忽略大气因素的影响。

This result shows that satellite infrared brightness temperature sometimes differs from ground temperature . Atmosphere has a great influence on satellite infrared brightness temperature and the atmospheric impacts cannot be ignored in analysis of satellite thermal infrared anomalies before earthquakes .