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地物     
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  landmark
     Recognition of Infrared Spectrum Composition of Landmark Based on GA Optimization
     基于GA优化的地物红外光谱组合识别
短句来源
     Spectrum Recognition of Landmark Images Based on BP Network and the Verificagion
     基于BP网络的地物影像光谱识别及效果检验
短句来源
     The Original Study on the Current Situation and Methods of Landmark Spectrum
     地物波谱研究现状及方法的初步探讨
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     Model of Landmark Spectrum Recognition Based on Neural Network
     地物波谱组合识别的神经网络模型
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     The characteristic of landmark spectrum is not only the physical base of the remote sensing technical application but also the base of the quantificational analysis of remote sensing, and the study in landmark spectrum is the main content in the basic research of remote sensing.
     地物波谱特性是遥感技术应用的物理基础,是遥感定量分析的基础,地物波谱研究是遥感基础研究的重要内容。
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  ground object
     The difference between soil and water loss area and other background object is analyzed in Fuzhou area by the remote sensing of Landsat TM1,TM2,TM3,TM4,TM5,TM6,TM7. The soil and water loss parts is extracted from this area by the difference of spectrum feature of soil and water loss area and other ground object, the conditional expression and the simple model.
     从遥感信息分析入手 ,分析了抚州地区水土流失区在LandsatTM1,TM2 ,TM3,TM4,TM5 ,TM6 ,TM7各个波段上与其它背景地物的可分性。 利用水土流失区光谱特征与其它地物的差异性 ,建立条件表达式 ,并建立简单模型 ,即可把该区的水土流失区提取出来。
短句来源
     The research content and influence factor of tank target and infrared irradiation characteristics with ground object background are summarized.
     综述了坦克目标与地物背景红外辐射特性的影响因素 ;
短句来源
     Ground Object Spectra DataBase and It's Applications in Remote Sensing
     地物光谱数据库及其在遥感中的应用
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     The main battle tank and typical infrared irradation characteristics with ground object background are emphatically expounded.
     着重论述了主战坦克和典型地物背景的红外辐射特性。
短句来源
     A Reseach of Reversion of the Ground Object Spectra by Aerial Color Infrared Film
     彩色红外航空像片反演地物波谱的研究
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  planimetric feature
     It is the objective basis of the map express for the qualitative and quantitative specific property of planimetric feature and its relation of time and space.
     地物的质量和数量特征及其时空关系是地图表示的客观基础。
短句来源
     At t>t0 time,according to the condition that the cartographic body belonging to different state of cartographic region we can define the up-to-date planimetric feature,die out planimetric feature and newborn planimetric feature.
     在t>t0时,依据制图物体从属于制图区域不同状态的条件,可定义现势地物、消亡地物和新生地物
短句来源
  ground objects
     The classified results of the 6 ground objects with BP classifier using different learning samples selecting methods and the Bayes classifier show that the BP classifier with the presented learning samples selection method can not only reduce the number of learning samples greatly which leads to shorter learning time, but also improve the classification accuracy compared with the existing methods.
     对6 种地物应用不同样本选取法训练的BP网分类器和Bayes分类器的分类结果比较表明:本方法分类精度明显高于Bayes分类器和其它样本选取法得到的BP网分类器,并具有学习样本数量少等特点
短句来源
     An Information Management System Based on RemoteSensing Images for Artificial Ground Objects
     基于遥感图像的人造地物目标信息管理系统
短句来源
     Extraction and Application of Characteristic Points for Ground Objects Spectral ReflectiveCurve
     地物光谱曲线特征点的提取和应用
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     Markov random fields model is introduced into multispectral remote sensing image classification in this paper so that the classer label spece correlation can be used to improve the classified accuracy of ground objects.
     在多光谱遥感图像分类中通过引入Markov 随机场模型, 从而实现利用类别的空间相关性来提高地物的分类精度。
短句来源
     However, using SPOT high spatial resolution data can distinguish the ground objects efficiently in detail and improve the accuracy of radiometric calibration and quantification of remote sensing.
     然而,利用SPOT数据进行地物辐射亮度和反射率的测量也有其高空间分辨率的优势,可以更精细地分辨各类地物的细节,降低混合像元对于定标分析的影响,提高定量遥感分析的准确度。
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  landmark
45S rDNA is a valuable chromosomal landmark in karyotype analysis.
      
waltl chromosomes (Spanish population/subspecies) showing distributions of chromomeres and marker landmark loops along the chromosome length were constructed.
      
The focal image of the SAW serves as a scale landmark for determining the crystal surface characteristics.
      
The algorithm is able to handle soft landmark constraints, which is particularly useful when parts of the images contain very little information, or when it is unevenly distributed.
      
Landmark position estimation and update is implemented through UKF.
      
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  ground object
Also an indicator cj can be given, specifying if this segment shall be subject to ground/object testing or not.
      
DOQ can distinguish ground objects of 1 meter, which is enough for ground object detection.
      
Gravity can be seen as an interaction initiated by a Ground object which applies the same attraction vector to all objects present in the VW.
      
In this scenario, an RUAV is required to track a moving ground object.
      
This system demonstrates the feasibility of learning to ground object symbols to sensation without supervision.
      
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  planimetric feature
Topographic and/or planimetric feature line maps are to be generated on an analytical or softcopy stereoplotter as specified in the Task Order.
      
  ground objects
Statistical model of the lightning leader attraction to ground objects
      
A statistical model of the lightning channel attraction to ground objects is proposed based on the analysis of the available experimental data on the breakdown of long air gaps and the propagation of the lightning leader channel.
      
Computation of the probability of lightning damage to ground objects
      
Recommendations of how to optimize model experiment conditions for gaining insight into the electric mechanism of the leader channel orientation relative to ground objects are given.
      
The algorithm has following characteristics: The obtained fractal values indicate the complexity of image, and have positive correlation with the complexity of images and ground objects.
      
更多          
  其他


As the total circumstance radiation which falls on the target being taken as the equivalent radiation of a blackbody at temperature To, the effect of environment radiation change on the sensibility equation of thermal imaging system is studied, and consequently the ratio emissivity ε of the target can be determined theoretically through the change of environment radiation. This paper gives the method and the measurements of temperature of the environment equivalent blackbody T0 Also a new method is given about...

As the total circumstance radiation which falls on the target being taken as the equivalent radiation of a blackbody at temperature To, the effect of environment radiation change on the sensibility equation of thermal imaging system is studied, and consequently the ratio emissivity ε of the target can be determined theoretically through the change of environment radiation. This paper gives the method and the measurements of temperature of the environment equivalent blackbody T0 Also a new method is given about the thermometer measurement of the ratio emissivity of the target. When the environment radiation is not neglected, the problems are methodically and theoretically discussed about how to use a ratio radiometer to measure the real temperature T of the target and how to use the radiometer to measure the spectral reflectivity of visible light from ground target.

把落到目标上的总的环境辐射等效成一个温度为T_0的黑体辐射,研究了环境辐射改变时对热成象系统灵敏度方程的影响,从而从理论上证明了用改变环境辐射的办法可以测定目标的比辐射率。给出了用红外测温仪测定环境等效黑体温度T_0的方法和实验结果。给出了用红外测温仪测定目标比辐射率的一种新方法及实验结果。对于环境辐射不能忽略时如何用比辐射计测定目标的真实温度作了方法性和原理性的讨论。对于如何用测温仪测定地物对太阳的光谱反射率也作了方法性和原理性的讨论。

A microwave feedback radiometer used for research on microwave characteristics of various materials is discussed in this paper. The receiver circuit and components which are easily influenced by drift are connected to a feedback network in order to eliminate the effect of the change of gain. Thus the stability of the radiometer is improved. The principle and design of the system are analysed; microwave integrated circuits arc described. A-calibration curve and experimental data are given in the paper. Output...

A microwave feedback radiometer used for research on microwave characteristics of various materials is discussed in this paper. The receiver circuit and components which are easily influenced by drift are connected to a feedback network in order to eliminate the effect of the change of gain. Thus the stability of the radiometer is improved. The principle and design of the system are analysed; microwave integrated circuits arc described. A-calibration curve and experimental data are given in the paper. Output noise fluctuation (r. m. s) of the equipment is 0.35°K_+0.1°K.

本文讨论了一种适用于研究地物波谱特性的反馈辐射计。为了消除增益变化的影响,将接收机和易受漂移影响的元件接入反馈回路,改善了系统的稳定性。还分析了系统的原理和设计,叙述了微波集成电路,给出了校正曲线和实地观察的实验数据。该设备的输出噪声起伏均方值达0.35°K±0.1°K。

The launching of land satellites makes it possible to make a quick and accurate study of land cover of a watershed, which is of great significance in hydrography.The present article takes Da-Wen River in the lower reaches of the Huang He River as an example, and selects seven kinds of typical land cover, mountains covered with dense forests, mountains covered with sparse forests, hills covered with grass and bush, hilly fields, plain fields, water and city. By the use of the digital data of films of the second...

The launching of land satellites makes it possible to make a quick and accurate study of land cover of a watershed, which is of great significance in hydrography.The present article takes Da-Wen River in the lower reaches of the Huang He River as an example, and selects seven kinds of typical land cover, mountains covered with dense forests, mountains covered with sparse forests, hills covered with grass and bush, hilly fields, plain fields, water and city. By the use of the digital data of films of the second land satellite of Oct.31, 1975 in 4 bands and the digital data of photograph of the third land satellite of April 1, 1978, MSS7, land cover of a watershed was analysed in a quantitative way and its was result compared with that of visual interpretation.The analysis is as follows.1. The order of photograph, in terms of ability of identifying objects on the land by land satellites, is MSS5, MSS6, MSS7 and MSS4. The order of quantitative analysis is MSS5, MSS7, MSS6 and MSS4. but any single band can't recognize all the selected objects on the land.2. Two dimensional space consisting of MSS5 and MSS7 is the best space for identifying land cover of a watershed.3. Colour photograph composed of four bands is capable of identifying objects on land-five out of eight objects.4. By the use of chart 7 and discrimination analysis approach, land cover of a watershed can be recognized and analysed.The quantitative approach with non-computer identification of objects on the land is fit for the study of kinds of samples within a certain range.

在陆地卫星资料的应用研究中,先对少量样本进行分析,然后上计算机处理,可以减少研究工作中的浪费与盲目性。本文以黄河下游大汶河为例,利用陆地卫星多谱段数据,对流域的稠密森林山地、稀疏林山地、草被灌丛山地、丘陵农田、平原农田、水体、城市等地物进行数值分析识别,并与常规目视解释作了比较。通过分析比较认为:陆地卫星单波段识别地物的功能,若以优劣评阶,影象的次序为:MSS5、MSS6、MSS7、MSS4,数值分析的次序为:MSS5、MSS7、MSS6、MSS4,但任一单波段都不能识别所选择的全部地物;由MSS5与MSS7构成的二维空间是识别流域地物的最佳判别空间;四个波段合成的彩色片可识别8类地物中的5种,具有良好的识别功能;利用MSS7~MSS5灰阶值点聚图及判别分析方法,可对流域地物进行识别分析,这种非计算机识别地物的数值法,适合于研究指定范围内样本的地物类型。

 
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