查询词典 antenna

The fixed beam antenna concept consists of beams with fixed pointing directions and predefined beam patterns.

一是固定波束天线的概念，即具有固定方向和预定义波束样式的波束群。

It can be used in the tracking system of a mobile satellite communication system to make the beam of the directional antenna on a vehicle point to the satel...

该系统能消除载体的变速运动对输出航姿角的影响，结构简单、紧凑，成本较低，可用于定向性移动卫星通信天线跟踪卫星的开环控制系统中。

Using on-board multiple beam antenna to obtain the direction of arrival is a new method for communication satellite interference location.

利用卫星天线多波束特性来获取干扰信号波达方向信息，是实现通信卫星干扰源定位的一条新思路。

A novel multi beam adaptive antenna is constructed by means of Fresnel zone phasecorrecting focusing configuration and feeding array.

利用菲涅尔区相位修正聚焦结构和馈源阵列构成一种新型的多波束自适应天线。

A broadcast TV satellite will have an antenna whose beam covers the entire continental United States.

广播电视卫星天线波束可以覆盖整个美国大陆。

However, phase quantization errors affect the accuracy of phased array antenna beam pointing badly, which is mainly researched here.

为改善这一情况，本文对相位量化误差引起的相控阵天线波束指向精度问题进行了研究。

It is an important aspect for communication satellite interference localization technques to obtain the source's direction-of-arrivalinformation based on multiple beam antenna.

利用卫星天线的多波束特性来获取信号波达方向信息，是通信卫星干扰源定位技术的一个重要方面。

Multiple beam focusing horn lens antenna is an important part of interferometer.

聚焦透镜天线的关键指标是焦面上分辨率大小和焦斑位置。

In a typical embodiment each TA-message is dedicated to one mobile and sent in the adaptive antenna beam that covers the area where the desired mobile is located.

在一个典型的实施例中，每个TA消息都是专用于一个移动站的，并且该消息是在覆盖了期望的移动站所处区域的自适应天线波束中发送的。

Beam forming ; smart antenna ; power control

波束赋形；智能天线；功率控制

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。