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- In satellite communications, pertaining to antenna systems with a beam for maximum cover of the earth's surface. 在卫星通信技术中，指天线系统其波束能最大程度地覆盖地球表面的区域。
- Capacity existing in the circuit and consequently the resonant frequency of the antenna system. 天线尺寸决定回路中的电感量和电容量,从而也决定天线系统的谐振频率。
- A device that permits the simultaneous use of a transmitter and a receiver in connection with a common element such as an antenna system. 一种设备,允许同时使用连接在一个公共器件(如天线系统)上的接收器和发送器。
- A microstrip array antenna is designed and manufactured to work as the feed of the Cassegrain antenna system. 研制了一个用作卡塞格伦天线系统的馈源的微带天线阵。
- The results of Matlab simulation show that the multi-sending antennas system can reduce the send power and enhance SNR than the single sending antenna at the same BER. 在对多天线MIMO系统信道容量研究的基础上,分析正交空时分组编码的原理,并采用matldb给出了仿真结果,仿真结果表明,要得到相同误码率,采用多副发送天线的系统比采用单副发送天线的系统能提高信噪比,从而降低发送功率。
- Loads distort every component of the structure of the Cassegrain antenna system. 载荷使卡塞格伦天线结构的每个部分发生变形。
- The Dual Trailing Wire Antenna(DTWA) on an Aircraft antenna system is used to transmit VLF/LF messages to submarines. 机载甚低频天线系统中的双拖曳天线是用于对潜通信VLF/LF的发射天线。
- In this paper, Genetic algorithm is used to design the sectored array antenna in smart antenna system. 使用遗传算法(GeneticAlgorithm)设计了智能天线系统前端的扇区天线阵列。
- Our recent work and results obtained in the fields about electromagnetic bandgap(EBG)structure,multi(single) antenna systems,and the channel properties of multi(single)antenna systems are introduced. 本文介绍了我们近年来在电磁带隙结构、多(单)天线系统、多(单)天线信道特性方面的研究工作和主要研究结果。
- Only a properly matched antenna system will allow maximum power transfer from the 50 transmission line to the radiating element. 只有一个匹配合适的天线系统才能在发射时使能量充分辐射出去。
- A microstrip reflectarray cylindrical Cassegrain antenna system is designed, which has an fixed beam deviation angle in the azimuth. 设计了一个微带反射阵柱形卡塞格伦天线系统，使该天线系统在方位面方向产生了固定的波束偏移。
- The composite channel models of the generalized distributed antenna system (GDAS) such as Rayleigh-lognormal fading are studied. 摘要首先对广义分布式天线系统的复合信道模型，如瑞利对数正态衰落信道模型，进行了分析。
- An angle diversity antenna system utilizes a first antenna, a second antenna, and a panel combiner coupled to the first and second antenna. 一种角分集天线系统，利用第一天线，第二天线，和一个与第一和第二天线耦合的面板组合器。
- The application of OEIC in Phased Array Antenna will reduce the cubage, heavy and cost of antenna system, and advance security of it. 将集成光学技术应用于相控阵天线可以大大缩小系统体积、降低重量及成本,提高系统可靠性。
- Nonlinear electron transport and heat dissipation except for the antenna system were also important photoprotection ways for E. japonicus in winter. 同时非线性电子传递和天线系统之外的能量耗散是大叶黄杨越冬过程重要的光保护机制。
- This paper proposes the optimum detection algorithm for a multiple antenna system based on the Maximum A Posteriori (MAP) criterion. 该文基于最大后验概率准则，给出了垂直分层空时码的最佳检测箅法。
- Complicated mathematical relations exist between beam direction angle and mechanical angle of the antenna pedestal in Cassegrain antenna system discussed in this paper. 文中介绍的卡塞格伦天线系统中,波束指向角度和天线座机械角度有着复杂的数学关系。
- What this antenna system uses is satellitic signal, so nonexistent ground base the limitation of the station, accomplished the whole world on real significance to enclothe. 这个天线系统使用的是卫星信号，所以不存在地面基站的限制，做到了真正意义上的全球覆盖。
- The vertical layered space-time (V-BLAST) of Bell laboratories based on a multiple transmitting and receiving antenna system (MIMO) highly improves the system capacity. 摘要基于多发送多接收天线(MIMO)的贝尔实验室垂直分层空时码(V-BLAST)可显著提高系统的传输容量。
- Feed network is an important part of shortwave multimode multifeed antenna system.The design of feed network is a pivotal technique in the process of projecting antenna system. 馈电网络是短波多模多馈天线系统的重要组成部分,因此,馈电网络的设计是多模多馈天线系统设计的关键技术,直接分析其结构非常困难。
