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laser communication gear 激光通信设备
Technology and Development of Free-space Laser Communication. 自由空间光通信技术及国内外发展状况。
Effect of vibration on intersatellite coherent laser communication[J]. 引用该论文王朝晖;赵长政;陈文新;焦斌亮.
The Research about Look-ahead Alignment Problem for Space-earth Satellite Laser Communication. 空-地卫星光通信系统中超前对准问题的研究。
Intersatellite laser communication is the best way to solve bottleneck intersatellite communication. 卫星激光通信是解决星间通信"瓶颈"的最佳方法。
The laser acquisition, pointing and tracking (APT) technology of high precision and large band-width is the key technology of space laser communication. 高精度、宽带宽的激光捕获、对准和跟踪技术(简称APT)是空间激光通信的一个关键技术。
The quantum noise is a basic noise in the atmospheric laser communication system, which restricts the effective distance of communication. 摘要量子噪声是通信系统中的基本噪声，它的存在制约了通信的有效距离。
I've always known my kids use digital communications gear a lot. But my cellphone bill last month really grabbed my attention. 一直以来，我知道我的孩子们频繁使用数字通信设备。但上个月我的手机账据还是引起了我的注意。
The principles of APT system are introduced, and the mathematic models are given. With Simulink language, a dynamic simulation of APT is realized in satellite laser communication. 简要的分析了APT 系统的工作原理,建立了仿真的数学模型,利用Simulink语言,实现了卫星激光通信中APT过程的动态仿真,在此基础上设计了星际激光通信复合轴APT综合模拟实验系统。
There may be concern among investors and analysts that a broad slowdown in spending on communications gear threatens the health of the entire communications equipment industry. 投资者和分析家可能会担心大规模减缓通信设备开支将会威胁到整个通信设备工业的健康发展,但是朗讯的问题看来主要还是咎由自取。
The numerical analysis results show that the performance of the wireless laser communication systems is highly dependent on laser wavelength, visibility, range and receiver FOV. 数值分析表明：激光波长、雾的能见度、测量距离和接收器视场角对无线激光通信系统均有较大的影响。
underwater sonic communication gear 水下电话机
They also own the communications gear that directs traffic over the Internet. There are only a handful of major backbone providers, including MCI, WorldCom, Sprint Corp. (FON), GTE, and PSINet Inc. (PSIX). 他们还拥有指挥因特网信息传递的通信控制装置。大的主干网提供商并不太多，包括MCI、WorldCom、Sprint Corp.;(FON)、GTE和PSI Net inc
The adaptive adjusting system of the detected signal is designed. The auto-adjusting range of 10 4 is obtained. This is satisfied for the submarine laser communication test system. 研究了光电倍增管的增益变化特性 ,据此设计出了一种实用的激光探测信号动态范围自适应调节系统 ,该系统自动调节范围可达 1 0 4 ,能满足激光对潜通信系统在不同天气、不同海况及不同海域等条件下的应用。
The paper gives a viable space laser communication PAT system ground model and implements a subminiature PAT servo controller based on TMS320LF2407A DSP, based on the analyzing of the existing space laser communication PAT system. 本文对现有的空间激光通信PAT系统进行了分析，提出了一种可行的空间激光通信PAT系统地面模型，实现了一种基于TMS320LF2407A DSP的微型PAT伺服控制器。
PPM(Pulse Position Modulation), as one of key technologies in the atmosphere laser communication, arouses more and more attention by the virtue of high power efficiency and strong resistance to interference. 光脉冲位置调制(PPM)具有能量传输效率高(每光子传输的信息量),抗干扰能力强等优点,是大气激光通信中的一项关键技术,因此越来越受到人们的重视。
The channel model of satellite-ground laser communication link is presented in presence of the effects of atmospheric scintillation and pointing jitter on the quality of communication. 基于该模型对星地激光链路中光束发散角与跟瞄误差之比的优化选择问题进行了研究。
The development of near-space aviation technology provides the potential to realize near-space laser communications. 临近空间飞行技术的发展使临近空间激光通信的实现成为了可能。
This scheme could meet the need of novel pointng，aquisition and tracking (PAT) system using FADOF，and will have a big influence in buiding laser communication link betweeen satellite. 该方案可与采用法拉第反常色散滤光器的新型跟瞄系统匹配使用,对建立卫星激光通信链路有重要意义。
The tacking turbulence-induced tilt errors caused by the mismatching apertures of the ground station's transmitting antenna and detector in the satellite-ground laser communication were introduced. 摘要介绍了星地光通信中因地面站激光发射天线孔径和光探测器孔径不匹配而引起的对准误差。