查询词典 antenna array

On the basis of studying law of Farad Electromagnetic Induction and the antenna theories in electrodynamics,We can improve the device — semi-wavelength antenna —which is used for receiving electromagnetic waves and apply it to Farad Electromagnetic Induction Experiment.

在研究法拉第电磁感应定律和电动力学中有关天线理论的基础上，将电磁波的接收装置—半波天线加以改进，应用到法拉第电磁感应实验中去，即能方便直观地验证法拉第电磁感应定律，也能形象地诠释麦克斯韦方程的物理意义。

Based on the project of Cruise Antenna for Receiving DBS Video Signal, we analyze and design the foreside antenna and the circuit of comparing intensity of signal received f...

本文结合"DBS数字卫星广播移动接收天线"项目，对其前端天线进行了研究与实现，并对天线在载体移动过程中寻星和锁定卫星的关键电路—接收信号幅度比较器进行了研制。

Based on the project of Cruise Antenna for Receiving DBS Video Signal, we analyze and design the foreside antenna and the circuit of comparing intensity of signal received from DBS satellite in this paper.The project has the great achievements as below.?

本文结合"DBS数字卫星广播移动接收天线"项目，对其前端天线进行了研究与实现，并对天线在载体移动过程中寻星和锁定卫星的关键电路—接收信号幅度比较器进行了研制。

More specifically, the invention relates to an antenna (1) comprising: first (2) and second (3) linear sub-antennas which are equipped with sensors (21-2M, 31-3N) forming first and second line segments and generating a basic signal, the angle between the respective directional vectors of the first and second tangents to the midpoint respectively of the first and second line segments being between 30 DEG and 150 DEG ; an antenna processing device (4, 5) forming combined signals; a signal-processing device (6, 7) generating combined useful signals; a device (8) for calculating the correlation coefficients (Cij between the combined useful signals; and a device (8) for generating a detection signal (Rij when a correlation coefficient exceeds a threshold.

更具体地，本发明涉及一种天线(1)，包括：带有形成第一和第二线段并产生基本信号的传感器(21-2M，31-3N)的第一(2)和第二(3)线性子天线，第一和第二线段各自中点的第一和第二切线的对应方向矢量之间的夹角在30°和150°之间；形成组合信号的天线处理装置(4，5)；产生有用组合信号的信号处理装置(6，7)；计算有用组合信号之间的相关系数(Cij的装置(8)；以及当某相关系数超过阈值时产生检测信号(Rij的装置(8)。

The DC power supply wire and connector wire drawn from power supply box should wiring buried wire as possible, exposed wire must be fixed by holding latch; Notch on the ground between transmitting antenna support and receiving antenna support, so that bury power supply wire and connector wire, geosyncline's surface need be covered with stainless steel bead.

从电源盒引出的直流电源线及连机线，应尽可能布暗线，明线须用卡固定；发射天线架与接收天线架之间须在地面开槽，以便埋下电源线及连机线，地槽表面需用不锈钢压条封盖。

Features: Near-field RFID operation to enable reading of Item Level Tags Work with UHF Gen2 RFID tags that incorporate an inductive near-field component including the Button, Paperclip and Satellite tags High performance, low cost antenna solution Table top or table bottom mounting Specifications: Information in this specification is subject to change without further notice The CS-777 near-field reader antenna is a key enabling technology for UHF Gen2 Item-Level Tagging systems.

它可用于零售和制药应用，图书馆系统，文件控制，检查柜台和许多其他应用程序需要一个短距离和密集读取范围的限制的关建技术应用。近场的RFID运作，使项目级标记阅读超高频二代RFID标签的工作融合了归纳近场组成，其中包括高性能，低成本的天线解决方案表顶部或底部安装表规格：使技术UHF第二代产品级别标记系统。

The possibility of works with the integrated antenna both to the method and to the transfer, in the opinion of producer, it makes possible to forego the wire head sets (wire which usually is used inthe role of antenna).

的可能性，工程与集成天线既要方法和技术转让，在民意的生产者，它使得有可能放弃钢丝头部套（钢丝通常是使用中的作用天线）。

The combination of Generalized Likelihood Ratio Test and Antenna Selection is applied to Unitarysignal transmission system, and antenna selection and signal detection do not require Channel State Information.

摘要该文提出了多天线传输系统的非相干天线选择算法，将广义似然比检验与天线选择结合应用于U码传输系统，天线选择和信号检测无需信道状态信息。

The "NVIS"(Near-Vertical Incidence Sky wave) antenna is set on the horizon, which can clear up the dead zone of short-wave communication, and a ferrite loading spiral coil antenna is installed on the rocker projectile to receive the short wave signal.

在地面设置近垂直入射天波传播"NVIS"天线，消除短波通信静区，弹上安装铁氧体加载螺旋线圈天线接收短波信号，利用原有弹载计算机进行数据处理。

So the circular disc monopole antenna is optimum designed and a novel Klopfenstein taper monopole antenna is proposed.

为此本文对圆片单极天线进行了优化设计，提出一种新型的Klopfenstein渐变单极天线。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48