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jian yi wu xian yao kong
- 简易无线电遥控系统利用高频载频信号将调制信号经由发射端天线送出,在接收端经接收天线接收,再经过解调和解码恢复原信号用来控制发光二极管的亮灭。--Radio remote control system easy to use high-frequency modulated signal carrier frequency signal sent by the transmitter antennas, at the receiving end through the receiving ante
phased-array-radar
- 一篇综述性的文章:近半个世纪以来相控阵雷达在全球的应用愈来愈广,近几年来所看到的突破,导致以往不可能的性能。这可由被称为单片微波集成电路(MMIC)的GaAs微波集成电路的开发作例证,它们使制造重量轻、体积小、高可靠性和较低价格的有源电子扫描阵列(AESA)成为可能。这种开发已使现在有可能制造一种成本低的35GHz导弹搜索相控阵,其价格为30美元/单元(包含所有 电子设备的阵列总价格除以单元数)。由于集成可使整个T/R模块置于一个芯片上。由Moore定律预测的发展使之可制作具有多种优点的数字
uhfrfid
- 本学位论文的工作在超高频射频识别(UHFRFID)系统的理论研究和设计 实践领域进行,包括了长距离无源后向散射UHFRFID阅读器射频前端的研制、脚B(超宽带)RFID系统源脉冲波形的优化设计、UHFRFID阅读器小型化天线的研制和UHFRFID标签天线的优化设计四个方面的研究内容。 -The dissertation work in the UHF radio frequency identification (UHFRFID) system of theoretical resear
GPS_RF
- 有源GPS天线的测试,可以帮助厂家确认GPS天线其的中心频率是否正确,验正增益和方向性等性能指标是否达到设计要求。通过GPS的OTA测试-Active GPS antenna testing, can help manufacturers to confirm the center frequency of its GPS antenna is correct, validation, performance indicators such as gain and directionality
CSI_MA
- 国外博士学位论文,多天线系统的信道状态信息研究-Channel state information in multiple antenna systems
finite_rate_feedback.
- 国外博士学位论文,带有限反馈的多天线系统-Multiple-antenna communication systems with finite rate feedback
lunwen
- 一种小型平面超宽带天线的设计与研究,提出了一种新颖的小型平面超宽带(UWB) 天线。-A small planar ultra-wideband antenna design and research, a novel small planar ultra-wideband (UWB) antenna.
antenna_selection
- 总结了天线选择算法的现状。提出了天线选择算法的发展方向和热点。-Summarizes the status of the antenna selection algorithm. Proposed antenna selection algorithm development direction and hot spots.
SpaceCorrelationinMIMOSystems
- 基于宏小区及微小区MIMO信道模型,比较了MIMO信道在两种传输环境中的空间相关特性,通过数值分 析方法得到了两类信道空间相关性随发送端、接收端天线阵列的分布而变化的特征曲线,并分析比较了信道参数, 即到达角的角度扩展,对空间相关性的影响。-The space correlation is analyzed in different propagation conditions including the MIMO macro-cell and micro-cell applica
4Gkey
- 这是一篇关于4G方面的一篇文章,它主要是介绍了4G的一些关键技术,如智能天线技术、MIMO技术、中继技术等。
junyunxianzhe
- 波束图定义为当阵列输入为平面波时,阵列输出与平面波入射角的关系。阵列天线的方向图是全方向的,但阵列的输出经过加权求和后,却可以使阵列接受的方向增益聚集在一个方向上,相当于形成一个波束,-The wave beam chart defines to work as when array input for plane wave, array output and plane wave incidence angle relations. Array antennas s directional d
STBC
- 空时码的编码程序,包含不同码字的比较和多天线设计-STBC source code with MIMO
TDSMCDA
- 主要介绍研究了智能天线技术对TDSCDMA网络规划和优化的影响分析-Introduces the study of smart antenna technology TDSCDMA network planning and optimization of analysis
txt2
- 智能天线的自适应算法通过迭代运算获取用于波束形成的最优权值矢量时,是否具有较快的收敛速度和较小的稳态误差成为决定波束形成性能的主要因素.据此提出在传统的LMS算法中引入变步长和变换域的思想,采用改进的自适应算法用于波束形成.MATLAB仿真结果表明,该算法具有较快的收敛速度和较小的稳态误差,波束形成的性能更优.-lms
network
- 无线运营商都在充实与补充基础设施,如微细胞分布式天线和继电器,宏蜂窝网络的进程。本文主要介绍了分布式天线的技术。-Wireless operators are in the process of augmenting the macrocell network with supplemental infrastructure such as microcells, distributed antennas and relays.
bamutianxian
- 矩量法分析八木天线,推导矩量法分析过程,分析电流分布,方向图-Moment method analysis of Yagi antenna, moment method analysis of the process is derived to analyze the current distribution pattern
smart_antenna_design_implementation_of_principles.
- 介绍智能天线的设计和实现原理的文章。对于学习和使用智能天线的通信工程师有一定帮助。-Introduce smart antenna design and implementation of principles of the article. For the learning and use of smart antenna communication engineers have some help.
AchievingNearCapacityonaMultipleAntennaChannel
- 一篇有关MIMO多天线系统的信号迭代检测实现的好文章,别人推荐的。-A multi-antenna system, the MIMO iterative detection of the signal to achieve a good article, others recommended.
GPSduotianxianjishujiancexitong
- 基于GPS多天线技术的远程自动化高边坡监测系统,很详细的讲解了GPS天线的各种检测。-Multi-antenna GPS-based remote automation technology, high slope monitoring system, explained in great detail the various testing GPS antenna.
HENGGANTIANXIANZHIJIA
- 设计的横杆天线支架,用在无线电小型监测站上面,图片设计的很详细,连安装空位都好了.-Support rod antenna design with a small radio station in the above picture design is very detailed, even the installation of space could be better.