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- advanced antenna system 先进天线系统
- The Advanced Multiband Communication Antenna System (AMCAS), developed for the U.S.Air Force, is an extremely low-profile antenna that significantly reduces drag on an aircraft. 美国空军研发的先进多波段通信天线系统(AMCAS)是一种极低姿态天线,大大降低了飞机拖曳。
- 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。
- Advanced antenna technologies are one of the key techniques to improving the capacity and coverage of third generation WCDMA (FDD) systems. 在提高第三代WCDMA(FDD)通信系统容量与覆盖范围时,智能天线技术仍时核心技术之一。
- 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。
- Even so, EMI/EMC deconfliction remains a major technical challenge that is driving close examination of advanced antenna working using common multifunction aperture technology. 尽管如此,EMI/EMC冲突仍是一个主要的技术难题,因此引发了使用通用多功能孔径技术进行工作的高级天线之间的间距对比试验。
- 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。
- 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。
- 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。
- By the combination of antenna array and advanced signal processing technology, the smart antenna system can perform adaptive array signal processing, the resulting advantages attract many researches in the fields of communication and signal processing. 所谓智能天线系统(Smart Antenna System)就是天线阵列与先进的信号处理技术相结合,形成具有自适应信号处理能力的天线阵列系统,是通信和信号处理等领域的研究热点。
- 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。