查询词典 antenna resistanc

We put great emphasis on the investigation of low complexity suboptimum multi-user detection and the space-time processing based on antenna array.

本论文针对多径频率选择性衰落信道下CDMA信号检测中的多址干扰抑制问题，研究次最优的多用户检测和使用阵列天线的空时处理技术。

In this paper,a blind subspace method is used for multiuser detection in antenna array CDMA system.

本文将两种技术结合在一起，提出了将子空间方法应用于天线阵多用户检测技术。

Celestial radiation transmitted through the antenna to the receiving system, by the receiving system amplification, the receiving system is usually a superheterodyne receiver, but now they are mainly three categories: compensation type, modulation type, the relevant type.

天体辐射经天线传输到接收系统，由接收系统放大，接收系统通常是一具超外差式接收机，现在也主要有三类：补偿型，调制型，相关型。

This paper proposes a new flexible method of the beam shaping based on superposition principle and the scanning principle of phased array antenna.

摘要该文从叠加原理和相控阵天线的扫描原理出发，提出了一种灵活方便的波束生成方法。

While in large cells, where the power may limit the system capacity, the increased antenna gain requires less power to maintain each link, and results in larger supportable cell ranges.

在大区制，当功率限制系统容量时，增加了的天线增益只需更小的功率来维持每条链路。因此，便可支持较大的范围。

Firstly,the coordinates of suspension points on the side rope sling can be obtained in two-dimensional plane by the suspended-cable equations,and their ordinates are corrected by the moment equations,then the lengths of antenna wire segments are determined.

在二维平面内应用悬垂线方程式计算边吊索上各悬挂点的坐标，应用力矩公式修正以上计算结果，确定各振子线的长度。

Product features: 1, automatic satellite system power automatically begin searching and tracking satellites; 2, Express to capture the use of WRS algorithm for finding stars at Express looking for about 15 seconds to track satellites; 3, receive real-time tracking of satellite signals, high-speed DVB identification code in order to achieve continuous flow of radio and television programs to watch; 4, automatic identification in the frequency and be able to accurately identify the location on the target satellite; 5, scanning electron velocity EBF sweep mode to ensure that the system 100 times per second tracking sweep speed, so that the antenna system to ensure that the system at all under any uninterrupted for watching satellite television programs and allowing the system to greatly increase the service life; 6, self-diagnosis can be their own fault diagnostic equipment, including communication links, sensors, drives, etc..

产品功能：1，自动寻星系统通电后自动开始搜索跟踪卫星；2，快速捕捉利用WRS寻星算法在15 秒左右快速寻找到跟踪卫星；3，接收信号实时跟踪卫星，高速识别DVB 码流以实现连续收看广播电视节目；4，自动识别能够在频率和位置上准确的辨别目标卫星；5，电子波速扫描 EBF扫模式保证了系统每秒100次的跟踪扫速度，使天线系统保证系统在任何条下都能不间断的收看卫星电视节目且使系统的使用寿命大大增加；6，自我诊断可以自行诊断设备故障，包括通信链路、传感器、驱动装置等。

Be careful not to interfere with them as you swivel the antenna around.

要小心当你在附近旋转天线，不要再干扰他们。

The idea to design antenna by using of tapered line theory directly can be used in practical operations.

这种利用渐变线理论直接设计天线的思路可以为实际应用提供有价值的参考。

In order to realize the compatible communications system between digital TETRA and analogy MPT1327. Communications protocol between digital radio and control center is defined. Emergency call software flow for TETRA and MPT module is designed, and also state information sending and receiving for TETRA and MPT module is designed in this communication system. By comparing several solutions, switch methods between analogy TETRA communications and digital TETRA communications are designed including manual-switch and soft-switch. In the article, coding module of receiving and sending equipments in TATT analogy TETRA communications is described, so that it can be compatible with NOKIA network equipments and it also can improve the availability rate of the trunk system. In order to realize the integration of digital TETRA communication and analogy MPT1327 communications, double- frequency antenna system is researched.

通过几种车载电台解决方案比较，设计了相应的模拟集群通信系统与数字集群通信系统的切换方法，其中包括人工切换和软切换，实现了模拟与数字集群兼容的一体化移动列车调度电台解决方案；为了实现数字集群通信系统与模拟集群通信系统以及NOKIA与TAIT模拟集群通信系统之间的相互兼容，设计了新的数字车载电台与控制中心之间的通信协议；系统设计了用于数字集群通信模块的紧急呼叫通讯流程，以及设计了用于模拟集群通信模块状态信息发送与接收流程，以满足列车无线调度的运营要求；论文还论述了对TAIT模拟集群收发设备编码模块的改造，使之能与NOKIA的集群设备相兼容，提高了集群设备的利用率，为在NOKIA模拟集群通讯模块停产后寻找了一种可替代的兼容解决方案；为了实现数字集群通信系统与模拟集群通信系统设备的综合，论文还探讨了本工作所需专用的双频段的天线系统。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？