查询词典 antenna

In the proposed cyclic training structure, all types of training symbols are transmitted cyclically at each antenna.

在这种结构中，所有类型的训练符号都在每个天线上循环地发送。

For example, when observation station must coincide with VLBI or SLR station, GPS antenna can't be installed to the sigh board's center of these stations, and under this special circumstance, decentration of observation must be a-dopted..

由于种种条件的限制，在很多情况下GPS天线都无法实现真正的对中，在某些特殊情况下，例如观测站必须与VLBI站或SLR站重合，而又无法在这些站的标志中心安设接收机天线，这就要求进行GPS偏心观测。

In the course of the impulse through underground mediator, because the physical property and the geometric property of mediator is non-uniform, wave form and wave amplitude will change very much and the impulse after shock、antenna direction figure、the couple degree of ground surface、system interfere、non-uniform of the underground mediator、reflection surface's rough cause the disturb of radiation scatter and diffract will complex the figure .

脉冲在通过地下介质的过程中，由于介质的物性和几何性质的不均一性，波形和波幅将发生较大的变化，而脉冲余振、天线方向图形、天线的地表偶合程度、系统内部的干扰、地下介质的不均匀、反射面不光滑等引起的辐射效率、散射的变化以及剖面旁侧的绕射等干扰，均使实时记录图像复杂化。

All these characteristics can extend frequency band , reduce antennaelectric size and improve impedance characteristics. In order to miniaturization ofantenna, impedance complete compensate and matching optimization of electricallysmall antenna are brought forward, and this method is applied to the discage antennas.

从阻抗特性和辐射特性的实测数据表明，水加载单极振子天线的谐振频率能很好地向低端下移，局部水加载单极圆锥天线在保持原有宽频带特性的前提下，以较少的效率损失实现了较大范围向低频区扩展，即天线小型化，这将为短波超短波波段天线进一步的小型化设计提供很好的思路。

KWGR614 modelling is beautiful, fashionable, use two dismountable 2dbi antenna, make signal stronger.

KWGR614造型美观、时尚，采用两根可拆卸2dbi天线，使信号更强。

Its basic idea is to realize all kinds of radio communication functions, such as work band, kinds of modulation or demodulation, data format, encrypt mode and communication protocol by upgradable and displaceable software on a hardware platform which is opening, expanded and simple structure. And it makes wideband A/D and D/A converters close to the antenna, in order to develop more flexible and opening wireless communication system.

它的基本思想是以开放的、可扩展的、结构最简的硬件为通用平台，把尽可能多的通信功能，如工作频段、调制解调类型、数据格式、加密模式、通信协议等用可升级、可替换的软件来完成，并使宽带A/D和D/A转换器尽可能地靠近天线，以研制出具有高度灵活性、开放性的新一代无线通信系统。

A domelike shell transparent to radio-frequency radiation, used to house a radar antenna.

雷达天线罩有顶构造，可以让无线电频率辐射穿过，用于隐蔽雷达天线

The G6NLC duad double quad antenna was inspired by designs for the 23cm and 13cm Amateur TV allocations. This design has been scaled, built, and then analysed with a network analyser to ensure the performance is optimum.

G6NLC 设计的双菱阵列天线是一个创造性的，为23mm和13mm业余电视频段设计的，这个设计被估算、制作，然后用网络分析系统分析，确保其最佳性能。

The antenna was mounted eccentrically and rotated by an electric motor at 2,000 rpm through a cone angle of 30 degrees.

天线被偏离中心安装，由一个每分钟2000转的电动机驱动做30度的锥形旋转。

The influence of parameters of traveling antenna on resonator frequency is also analyzed elementarily.

文中对移动天线参数的变化对谐振频率的影响进行了初步分析。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。