directional antenna是什么意思

网络释义

用法例句

According to the characteristics of distributed satellites INSAR system, this paper derives the relation between the antenna pointing error and the antenna beam misalignment, analyses the influences induced by azimuth beam misalignment on receiving signal-to-noise ratio, Doppler centroid and azimuth ambiguity-to-signal ratio and the resulting height error.

　基于分布式卫星INSAR(InterferometricSyntheticApertureRadar)系统的特点,建立了分布式卫星INSAR系统中天线指向误差和由此引起的天线波束偏离的确定关系,分析了天线波束偏离引起的接收信号信噪比、多普勒中心以及方位模糊比的变化和由此产生的测高误差。

This paper introduces the principle of spotlight SAR, derives the simplified formulas for calculating the antenna direction of the stabilized platform, and presents the software block diagram of a single chip computer assembler language.

介绍了聚束SAR的工作原理 ,推导了计算稳定平台天线指向的简化公式 ,给出了单片机汇编语言软件框图。

As to improve the channel capacity, this paper proposes that channel capacity of the indoor MIMO system can be improved using directional antenna.

室内多输入多输出系统,即MIMO(Multiple-Input Multiple-Output)系统,如使用无指向性天线作为基站天线,由于存在大量墙壁散射,送信电力损失比较大。

Thirdly, study on the retrieval method of antenna mispointing angle form SZ-4 altimeter data, and then show the SZ-4 antenna mispointing angle information.

文中首先分析了HY-2卫星高度计数据的分级和数据处理流程;其次研究了HY-2卫星高度计有效波高反演算法,得到了适合的反演流程和计算结果;最后,对卫星高度计天线指向角的反演方法进行了研究,得到了天线指向角的分布。

A radio receiver and directional antenna used as a system to determine the angular direction of incoming radio signals.

无线方向探测器一种无线电接收和指向天线系统，用来确定收到的无线电信号的角方向

Beam pointing error of a radome

天线罩波束指向误差

isotropic antenna

各向同性天线, 全向天线

Search of the Methods for Calibrating the Single-Antenna Tracking/Pointing and Baselines of Pairs of Antennas

关于单天线跟踪指向校准和双天线基线校准的探讨

Accurate Adjustment of Pointing and Polarization Angle of Satellite Receiving Antenna

卫星接收天线的指向及极化倾角的准确调整

Before the polarization angle adjustment, the antenna pointing may need to be adjusted in advance.

极化角调整前可能需要调整天线的对星指向。

Study on Antenna Expansion and Pointing Control to Flexible Multbody Satellite

挠性多体卫星天线展开及指向控制的研究

Study on H_∞-PID control for Position Servo of Antenna Pointing Mechanism

天线指向机构位置伺服的H_∞-PID控制研究

Influence and correction method of atmosphere refraction on tracking antenna direction

大气折射对跟踪天线指向的影响及修正方法

phase-shift omnidirectional radio range

相移全向无线电指向标

omnidirectional beacon

全向式无线电指向标

omnirange antenna

全向无线电信标天线

ADF sense antenna

自动定向仪辨向天线

Complicated mathematical relations exist between beam direction angle and mechanical angle of the antenna pedestal in Cassegrain antenna system discussed in this paper.

文中介绍的卡塞格伦天线系统中,波束指向角度和天线座机械角度有着复杂的数学关系。

Study on and Analysis of the Relations between Beam Direction and Mechanical Angle of the Antenna Pedestal in Cassegrain Antenna

卡塞格伦天线系统中波束指向角度和天线座机械角度关系的研究与分析

The aerial which sends out the signal and receives the reflected signal is pointed straight at the aircraft.

发射出信号并接受返回信号的天线是直接指向飞机的。

Mechanics Analysis and Control Research of the Feed Tracking System for Super Antenna;

超大型天线馈源指向跟踪系统的力学分析及控制研究

She pointed to a crescent moon and said,

她指向天上的新月说：