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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。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。