大射电望远镜,large radio telescope
1)large radio telescope大射电望远镜
1.The singularity analysis of the fine tuning stable Stewart platform for the large radio telescope;大射电望远镜精调稳定平台奇异性分析
2.A Study on the Key Technology of Cable-cabin Structure Control System Hardware and Software Design for Large Radio Telescope;大射电望远镜舱索粗调控制系统软硬件设计关键技术研究
3.Adaptive fuzzy predictive tracking of the feed for large radio telescopes;大射电望远镜馈源轨迹跟踪的模糊预测控制
英文短句/例句

1.Analysis of Similarity on the Cable-cabin Structure of the Large Radio Telescope;大射电望远镜舱索结构的相似性分析
2.The Vibration Control and Measurement for the Cabin Supporting Structure of Large Radio Telescope;大射电望远镜馈源舱支撑结构的减振与测量
3.Optimization, Analysis and Control of the Stewart Platform for the SKA;大射电望远镜精调Stewart平台的优化、分析与控制
4.Nonlinear PID Control of the Stewart Platform for the Square Kilometers Array;大射电望远镜精调Stewart平台非线性PID控制
5.Modeling, Simulation and Analysis of Feed Supporting System for the Large Radio Telescope;大射电望远镜馈源支撑系统的建模仿真与分析
6.On the Measuring and Calibration for the Fine Tuning Stewart Platform of the Large Radio Telescope;大射电望远镜精调Stewart平台的测量及其标定研究
7.Research on Measurement System of Laser Total Stations for Large Radio Telescope;大射电望远镜激光全站仪测量系统的研究
8.Model and Control of Flexible Cable Support System for Large Radio Telescope Feed Cabin大射电望远镜馈源柔索支撑系统的建模与控制
9.Control and Experiment of the Fine Tuning Stewart Platform for the Large Radio Telescope大射电望远镜精调Stewart平台控制及实验研究
10.Design and Study on the Adjusting System of the Cable-mesh Reflector for the Large Radio Telescope;大射电望远镜索网反射面调整控制系统的设计与研究
11.Research on the Target Tracking and Measuring System for the Feed Cabin of the Large Radio Telescope;大射电望远镜馈源舱的目标跟踪与测量技术研究
12.radio telescope with fixed spherical reflector固定球面射电望远镜
13.filled aperture radio telescope连续孔径射电望远镜
14.aperture synthesis radiotelescope综合孔径射电望远镜
15.It will be the largest and most sensitive radio telescope array in the world.它将是世界上最大和最灵敏的射电望远镜陈列。
16.Design and Analysis on the Large Radio Telescope with Flexible Cable Structure;柔索结构大型射电望远镜天线结构设计与分析
17.On Dynamic Performance of the Cable-cabin System of the Large Radio Telescope大型射电望远镜舱索系统结构动态性能研究
18.With radio and X-ray telescopes, we find many signs of violent activity.依靠射电望远镜和x射线望远镜,我们发现了许多迅猛活动的迹象。
相关短句/例句

large spherical radio telescope大射电望远镜
1.Attitude control of cabin structure of a large spherical radio telescope;大射电望远镜FAST馈源舱位姿控制
2.A series simulation is done with the parameters of a 5-meter scaled large spherical radio telescope model, and the results show that not only is the position error with the adaptive sliding m.在此基础上,针对大射电望远镜5 m模型,采用离散悬索模型和自适应滑模控制方法对舱索控制系统进行了仿真,并与传统的PID控制方法进行了对比。
3.This paper is devoted to the problem of attitude control of the feed source of a large spherical radio telescope.研究了大射电望远镜(FAST)馈源的精确定位问题。
3)FAST[英][fɑ:st][美][f?st]大射电望远镜
1.This paper introduces the cable-net structure supporting the reflector of FAST(Five-hundred-meter Aperture Spherical Telescope) 30m model,gives three feasible schemes for construction according to the site conditions,and uses the ANSYS birth and death element to simulate the construction process.介绍了大射电望远镜(FAST)30m模型主动反射面支承结构——整体索网结构,根据现场条件提出了三种可行的施工方案,并利用ANSYS的生死单元技术模拟索网张拉过程。
2.A cable-net structure was employed to support the reflector of the Five-hundred-meter Aperture Spherical Telescope(FAST).采用整体索网作为大射电望远镜(FAST)反射面的支承结构,通过对四边形、凯威特型和短程线型三种整体索网方案的研究、对比,认为短程线型网格是一种合理的较优方案;分别对提出的刚性、半刚性和柔性三种子结构方案进行分析研究,论证该刚性方案的可行性,初步论证半刚性方案的可行性,同时对柔性方案提出改进建议。
3.The geodesic meshed cable-net structure was used to support the reflector of the Five-hundred-meter Aperture Spherical Telescope (FAST).采用整体索网作为大射电望远镜(FAST)反射面的支承结构,网格划分形式为短程线型。
4)Large radio telescope大型射电望远镜
1.Trajectory tracking control for large radio telescope source feed of 1/30th model;大型射电望远镜馈源1/30模型的轨迹跟踪控制
2.Similarity between the distorted model and the prototype of the large radio telescope;大型射电望远镜舱索结构变形模型与原型的相似性
3.Numerical simulation of vortex-excited oscillation for the long-span cable-cabin flexible structure of the large radio telescope;大型射电望远镜舱索柔性结构涡激振动的数值模拟
5)Large radio telescope(LT)大射电望远镜(LT)
6)large radio telescope FAST大射电望远镜FAST
1.For the feasibility problem of the cable mesh reflector for a large radio telescope FAST, this paper develops a set of specialized finite element software and proposes a feedback control algorithm for fitting the cable mesh reflector to paraboloid.针对大射电望远镜FAST的整体变形索网反射面方案的可行性问题,研制开发了一套专门的有限元计算软件,并提出了一个索网反射面拟合旋转抛物面的反馈控制算法。
延伸阅读

带形射电望远镜  广义地说,射电望远镜中凡天线反射面呈非轴对称,即一方向的尺寸远大于另一方向,就称为带形射电望远镜。这种射电望远镜一般有扇形方向图。带形射电望远镜有克劳斯型系统、可变轮廓天线(即海金型、旋转抛物面或球面的一个带)和抛物柱面等类型。克劳斯型系统(图1)由作为主反射面的固定的旋转抛物面截带 B、可倾侧的平面反射器C和收集B面所反射的辐射能的小抛物面或喇叭天线(所谓"照明"天线)A三部分组成。B与 C通常置于东西方向。通过调整C的倾斜度可在子午面内改变系统的赤纬指向,而B的垂直截面为抛物线状,水平截面为圆弧状,故可在一圆形轨道上移动照明天线A,跟踪射电源的周日运动约1小时。由于主反射面固定,可旋转的平面反射器较易安装检验,因此可以建成精度较高的大型射电望远镜,且适于多频段工作。最著名的克劳斯型系统有美国俄亥俄大学射电天文台、法国南锡系统和苏联泽缅基天文台的毫米波(PT-25)系统。可变轮廓天线由多平面镜排列成的一旋转抛物面截带和在焦点处的短抛物柱面形的照明天线组成(图2)。平面镜单元通过三个自由度运动──以焦点为中心的径向位移、绕水平轴的旋转和绕垂直轴的旋转,调整其位置,便可以改变天线响应方向。反射面精度主要取决于各单元间的相互位置,易于实现设备的大型化和精密化。这种望远镜是苏联普尔科沃天文台最先使用的。1976年建成的苏联科学院专门天体物理台PATAH-600射电望远镜,是基于可变轮廓天线原理并结合克劳斯型系统设计成的。抛物柱面的馈源配置在焦线上,以调节馈源相位的办法实现平行轴方向的电扫描,而垂直轴方向的方向束则借柱面绕水平轴的转动进行调节。此类射电望远镜多作为复合射电干涉仪、综合孔径或十字系统的一部分来使用。单独使用的典型例子是印度乌塔卡蒙德的地轴平行抛物柱面系统。