这是只可能检测为云雷达对金星一天的长度完全吞噬的表面。
It was only possible to detect the length of the Venusian day by radar as the clouds entirely engulf the surface.
从一般的雷达截面积定义出发，文中给出了箔条云雷达截面积同偶极子雷达截面积之间的关系。
Based on the definition of radar cross section, it is given the relationship between the cross section of a dipole and that of a chaff cloud.
用于跟踪风暴的雷达只能在大气中凝结成云或雨滴后才能够探测到水。
Radars used to track storms can detect water in the atmosphere only once it has condensed into clouds or raindrops.
偶极子云的问题是在通过单基地雷达观测时有效散射截面。
The problem of the dipole cloud is an effective scattering cross-section while observed by a monostatic radar was studied.
一个原因是被用来追踪雷暴的雷达只可以发现大气中凝结成云或雨滴的水，因为水能以这样的形态反射波束。
One reason is that radars used to track storms can detect water in the atmosphere only once it has condensed into clouds or raindrops, and thus reflects the beam.
该工程将使用雷达、热气球与大气层飞行器来研究另一种高端云的作用，其名为卷云-它是在暴风雨出现时从其顶端意外形成的。
It will use radar, balloons and aircraft to look at the role of another sort of high-altitude cloud: cirrus clouds, which get spun off the tops of storms.
他们将这些发现同烟尘云高度的雷达信息结合起来，观察两者是否有联系。
They combined these findings with radar information on the height of the cloud to work out if there was any connection between the two.
也就是众所周知的积雨云，据明尼苏达州公共广播报道帕加米湾大火羽云是由多普拉雷达获得的。
Minnesota Public Radio reported that the plume from the Pagami Creek Fire was picked up by doppler radar.
然而2006年4月以来，“探云”卫星的雷达就一直在提供全球范围内的中间云层样板，这是以前对大气研究从未涉及的领域。
Since April 2006, CloudSat's radar has, however, been providing a globe-circling slice of the middle layer, a previously unobserved part of the atmosphere.
本文用711测雨雷达实测的冰雹云过程回波资料，分析了大小回波在雹暴形成中的演变过程以及回波强度和回波高度间的关系。
The evolvement of echo during the formation of hail storm and the relation of echo intensity with its height are analyzed by use of echo data. of the 711 rain radar.
本文介绍机场用小型、自动化、可综合探测跑道视程、斜视视程和云高的激光雷达的基本工作原理；
The principles of the minor, automatic and comprehensive lidar for measuring both runway visual range and cloud height are described in this paper.
本文介绍了利用电场仪、闪电计数器以及雷达对雷暴云地面电场进行观测的结果。
The ground electric field produced by thunderstorm was studied by using field mill, lightning counter and weather radar.
本文扼要介绍雷达观测、雹云识别、作业指挥、效果分析等部分主要技术规程。
The main procedures are briefly introduced here, such as radar detecting, hail cloud identifying, operation commanding, effect analyzing, etc.
本文在对云朝山雷达站现有防雷措施进行全面研究的的基础上，对其进行分析改造，提出一套针对雷达站的综合防雷保护措施。
This thesis based on the comprehensive research on existing anti-lightning measurement of Yunchao mountain radar station, making some analysis and improvement, advancing a set of comprehensive method.
并就评估方案集进行计算，绘出抗无源干扰能力最大的X跟踪波段雷达最大发现距离随箔条云距离及箔条云密度变化曲线，并分析其结果。
And also calculates evaluation set. The density movement curve to the farthest discovering distance of X wave band radar is drawn and the result is analyzed.
利用新一代天气雷达资料分析闽东北地区夏季对流云的回波特征。
By using new generation weather radar data, the characteristics of convective cloud echoes in summer over the northeastern Fujian Province are analyzed.
本文在详细分析机载激光雷达工作原理及其点云数据特点的基础上，探讨研究点云数据的精度问题。
The paper studys the problem of point cloud data precision after detailed analyzing the principle of airborne LiDAR and the characteristics of point cloud data.
作为机载激光雷达数据处理的关键环节，激光雷达点云滤波一直是数据应用的重要前提和研究热点。
As a key of airborne laser data processing, the filtering of point cloud has been an important prerequisite and research focus of data applications.
提出了针对机载激光雷达点云的建筑物三维模型提取方法。
A method of extracting 3d building model from airborne lidar point cloud was presented.
实验结果表明，该方法能有效地标识出雷达图像中的冰雹云区域。
This rule-based hail detection method was able to recognize the hail clouds on the radar image effectively.
本文结果为使用双极化雷达研究云降水机制提供了方法，表明双极化雷达在云降水物理的研究中具有广阔的应用前景。
The studies provide the method for dual-polarization radar application to cloud and precipitation physics studies, and indicate its broad potential application prospect.
图4激光雷达点云数据和传统光学影像数据比较。 （a）无人机激光雷达点云数据；
Fig. 4 Comparison of LiDAR point cloud data and traditional optical image. (a) UAV LiDAR data;
星载激光雷达CALIOP实行对地例行的垂直切片式扫描，形成对地球大气中气溶胶和云高分辨的立体监测网。
Satellite Cloud-Aerosol Lidar (CALIOP) practices a routine vertically sliced scanning through the earth's atmosphere, forming a 3-D monitoring network with high resolution on cloud and aerosol.
提出了针对机载激光雷达点云的建筑物三维模型提取方法。
Virtual Architecture is defined as the 3D model of building, which employ both CAD utensils and Graphics technology.
提出了针对机载激光雷达点云的建筑物三维模型提取方法。
Virtual Architecture is defined as the 3D model of building, which employ both CAD utensils and Graphics technology.
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