查询词典 antenna

Based on distributed multi-antenna system, a new method for time difference of arrival estimation in multipath environment is proposed.

在分布式多天线系统架构下提出一种估计到达时间差的新方法。

The paper presents a seheme for long-distance transmission of the informations of primary radar-video, antenna angle, various telecontrol, telemetering and telemonitoring by means of the microwave communication apparatus.

本文给出了用微波设备远距离传递雷达原始视频信息、天线方位信息和各种遥测、遥控、遥监信息的方案；详细地讨论了方位信息的传递；提出了一种简单而可靠的容错编码系统和解码系统，对其抗差错能力进行了估算，并探讨了抗差错能力与天线转数、发射重复频率之间的关系。

The technology of radio frequency identification is discussed. It utilizes microwave and transmitter/receiver antenna to realize identification of far distance object.

射频识别技术是一种利用无线电波及收发天线实现对目标的远距离自动识别。

This enabled it to receive the microwave energy through a rectenna or disc shaped rectifying antenna receiver that converts microwave energy into DC electricity.

这使得它能够接收微波能量通过整流或圆盘形整顿天线接收器转换成微波能量转化直流电力。

This paper is to study the low noise amplifier, the primary stage of the RF/microwave receiver, The function of LNA is to amplify the uV vohage signal received by antenna.

低噪声放大器是对来自天线的微伏级信号进行放大的射频接收端的放大模块。

By installing the microwave antenna and gravity accelerometer to the rotating flying object, the Digital Signal Processing systems inside it can receive the linear polarization electromagnetic wave emitted by the land microwave transmitter and the output signal of the accelerometer.

论述了在高速的旋转飞行体上安装微波天线和重力加速度计，由地面微波系统发射线极化微波，飞行体上的信号处理系统利用接收到的微波的线极化特性和重力加速度计输出的信号波形，对其飞行状态进行精确识别的技术。

The basic principle for the layout of GPR survey line was summarized on the three basic operation modes,i.e.,reflection mode,common mid point mode and transillumination mode,and the basic principles for the choice of GPR field operation parameters were introduced,which included the center frequency of antenna,the maximum time window,the spatial and temporal sampling intervals,and the separation 'between' the transmitting and receiving antennas.

概括了探地雷达野外工作的基本方法，介绍了探地雷达现场工作测线布置的基本原则，并总结了探地雷达野外测量时工作参数的选择原则。这些工作参数包括工作天线主频、采样时间窗的大小、空间采样步长、时间采样间隔、天线距大小。

Millimeter Wave antenna is one of the most key equipment of many MMW systems.

毫米波天线是毫米波系统前端的关键部件之一。

Fractal geometries of Hilbert and H curves can be implemented to miniaturize the antenna, too.

研究表明Hilbert和H分形天线具有降低天线结构尺寸的优点，相对于一般阵子天线，结构尺寸大为降低。

Several kinds of antenna applied in an RFID system are introduced, especially focusing on the novel methods to miniaturize their structures.

RFID技术具有可靠性高、保密性强、方便快捷等特点。此外，由于它的数据容量大，并可以对标签数据进行更改和加密，同时能够实现非视距扫描，因此被广泛应用在包装、物流等行业。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷