查询词典 antenna array

Using the finitedifference timedomain electromagnetic method and c language program in the matlab software,the spatial electromagnetic field distribution radiation of photoconductive dipole antenna is calculated and displayed on the computer in a pseudocolor graph.

研究了光电导天线产生太赫兹波的辐射特性，利用麦克斯韦方程及其边界条件，计算了近远场的电场强度；采用电磁波时域有限差分方法，在Matlab系统软件中，用C语言编写程序计算光电导偶极天线的辐射太赫兹波的空间电磁场分布，并在计算机上以伪彩色图形显示，这种电磁场的可视化结果为天线的设计和改进提供了直观的物理依据。

This research process the ionosphere-free triple-differenced carrier phase observation which consist of double frequency GPS observations from the GPS receiver carried on the CHAMP and 40 IGS tracking stations. Besides, the tropospheric correction model, solid earth tide correction, mass center correction of the satellite, earth rotation correction and antenna phase center correction are incorporated. Finally, determine the satellite short-arc orbit with the pure geometry, kinematic, method.

本研究利用CHAMP卫星上装载之GPS接收器所接收之双频观测量与地面上40个IGS追踪站组成三次差分无电离层观测量，并改正观测量中之对流层误差、固体潮误差、质量中心改正、地球自转、天线相位中心偏差等误差量，以纯几何之动态法求定低轨卫星之短弧轨道位置。

With a frightful qualm, I turned, and I saw that I had grasped the antenna of another monster crab that stood just behind me.

我感到一阵可怕的恶心，转过身来，发现我抓住了正爬在我身后的另一只巨蟹的触须。

By using the quantum jump approach, we show that the efficiency depends intimately on the quantum interference among states in which the excitation is localized on individual sites in the antenna.

补充：通常情况下要在室温下实现宏观量子相干很难，但考虑到光合反应中电子转移过程的时间在飞秒量级，在超短时间内维持室温宏观量子相干或许是可行的。

This paper introduces the structural design of various typical medium-wave radiating antenna which have been constructed in our country.

本文较系统地介绍了我国已建成的各种典型中波发射天线的结构设计，可供相关的工程设计人员参考。

The radio beam can be thought of as a light beam. The reading antenna illuminates a well-defined zone.

这种超高频率电波类似光源自动照射的范围，具有区域性。

It is called a radio telescope because a radio antenna is used to observe radio waves emitted by astronomical sources.

它被称为射电望远镜，因为收音机的天线是用来观察天文活动所排放的无线电波。

In one of those paintings, a radio transmitter antenna was put on top of iceberg in the middle of an ocean.

在其中的一幅中，一个收音机发射器天线放置在一座位于海洋中心的冰山顶峰。

Radio wave is sent by open electrical capacity that is formed by antenna and ground.

无线电波是靠天线与地面构成的开放电容发射出去的。

Lastly, the paper summarizes and sets forth some technology and methods to reduce sidelobes effect of a radiometer antenna.

阐明了降低天线旁瓣噪声的技术和方法，提出一些适用于遥感辐射计的独特技术和方法。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。