radio telescopes

The Development and Prospect of the Radio Telescopes in the World

射电望远镜的发展和前景

The integrated design technologies for emulation model of large spherical radio telescopes

大型球面射电望远镜仿真模型设计

The principles of design and a proposal for a new type of large radio telescopes

大型射电望远镜的设计原则及一种新方案的建议

Existing radio telescopes are probably sensitive enough .

目前的射电望远镜差不多已有足够的灵敏度。

This chain eventually led to jet aircraft , nuclear power , and giant radio telescopes .

这一链条后来导致了喷气式飞机，原子能和巨型射电望远镜的发明。

Radio telescopes have been able to probe space beyond the range of ordinary optical telescopes .

射电千里镜未能探测一般光教看遥镜达没有到的宇宙空间。

The Antenna-Gain Determination of Two Radio Telescopes at the Yunnan Observatory

云南天文台射电望远镜天线增益的测量

These favorable results have shown the feasibility of applying Stewart platform in the next generation large radio telescopes .

证明了Stewart精调平台用于新一代大射电望远镜工程的可行性。

The team used radio telescopes to map out the motions of a large collection of local galaxies .

这个研究小组使用电波望远镜在地图上标出大量局域星系团的运动。

Most pulsars are weak sources and require the use of large radio telescopes to detect them .

大部分脉冲星发出的信号很弱，需要很大的射电望远镜才能探测到他们。

They want to send messages to hundreds of star systems and planets 20 light years away using radio telescopes .

运用无线电波望远镜，他们想把信息发送到距离地球20光年外的行星和星系。

Tracking and Scaling Accuracies of the Solar Radio Telescopes at the Yunnan Observatory

云南天文台太阳射电望远镜跟踪精度和定标精度

Radio telescopes are relatively inexpensive ; radio signals travel at the speed of light , faster than which nothing can go ;

无线电天文望远镜相对便宜，无线电信号以光速传输，比任何速度都快；

He thinks it may be possible to measure the spin using an intercontinental network of existing radio telescopes over the next five years .

他认为可以在接下来的五年内，通过现有的洲际射电望远镜网络，测量黑洞的自旋。

But radio telescopes are sometimes grouped together , is the same effect as having one big telescope to increase radio wave gathering power .

但射电望远镜的接收器常常建立在一起的，从而组成一个更大功率的信号接收盘。

Radio telescopes are giant dish-shaped antennas by means of which we can collect radio waves coming from outer space .

射电望远镜是巨大的抛物形天线，使用这种天线我们能够收集来自外层空间的无线电波。

For instance , the far side of the moon could be ideal for optical and radio telescopes because they would not face earthly interference there .

例如，月球远面可能是光学望远镜和射电望远镜的理想位置，因为那里不会受到地球的干扰。

Their search used radio telescopes launched to the edge of the atmosphere on special balloons from a site in Palestine , Texas .

研究在德克萨斯的帕勒斯坦地区展开，他们把射电望远镜置于一些特殊的气球上，发射到大气层边缘。

Radar observations using earth-based radio telescopes have pierced those clouds and suggest the presence of lakes composed of liquid hydrocarbons .

利用地球表面无线电波望远镜所做的雷达观测，可穿透这些霾雾，看见可能是由液态碳氢化合物组成的湖泊。

For decades , astronomers have patched together networks of radio telescopes to achieve the high resolution ability to distinguish fine detail of long baseline astronomy .

几十年来，天文学家为追求长基线天文学的高分辨率区分微小细节的能力将射电望远镜编排成网络系统。

The FPAs have been equipped widely on millimeter and sub-millimeter radio telescopes and main bands of large radio telescopes in the world .

目前焦面阵己经愈来愈广泛地配置在毫米波射电望远镜和大型射电望远镜的主要波段。

In order to detect more and more weak celestial objects and more sophisticated structure , spectrum , and time-varying information , higher requirements for radio telescopes are brought forward .

为了探测更多、更弱的天体及天体更精细的结构、频谱、时变等信息，人们对射电望远镜的发展有了更高的要求。

If these beams sweep across Earth 's field of view as the star rotates , radio telescopes on Earth can detect the star 's regular pulses .

当这个星体的脉冲波扫过地球的视野，射电望远镜就能发现这种星体规律的脉冲波。

Radio telescopes have one big advantage over conventional telescopes in that they can operate in all weather conditions and can pick up signals coming from very distant stars .

射电望远镜与普通望远镜相比有一个显著的优点，即它能全天候工作，并且能接收到从遥远的星体传来的信号。

So we need to use radio telescopes , specially designed to receive these waves and then , well , we can use computers to create pictures based on the information we receive .

所以我们还需要建立射电望远镜；它们的原理是接收电波，并且通过电波信息建立电脑模拟图像。

The millisecond spike events from January 1990 to March 1991 observed and recorded with the fast sampling radio telescopes at four frequencies at the Yunnan Observatory are analysed in this paper .

本文分析了云南天文台四波段快速采样射电望远镜在1990年1月至1991年3月间记录到的毫秒级尖峰辐射事件。

Since 1960 , there have been over one hundred SETI projects , with radio telescopes stationed around the world , including Puerto Rico , Argentina , Australia , South Korea and Italy .

1960年以来，一共有100多个SETI项目，世界各地都架设了无线电望远镜，包括波多黎各、阿根廷、澳大利亚、韩国和意大利。

With NASA 's James Webb Telescope scheduled for launch in 2018 , and more powerful radio telescopes being built on Earth , we will soon peer back in space and time further than ever before .

NASA所研发的韦伯望远镜计划于2018年发射，而地球上将设置更多功能强大的电波望远镜。不久，我们就能在时间和空间上同时取得更大的进步。

Sensitivity and resolution are two most important factors to measure the performance of the radio telescopes . The angular resolution is mainly determined by the size of the telescope ; while the sensitivity is depend on the performance of the microwave receiver .

灵敏度和分辨率是衡量射电天文望远镜性能的两个重要指标，分辨率主要由望远镜口径大小决定，而灵敏度则是取决于微波接收机的性能。

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。