大气激光通信系统,atmospheric laser communication system
1)atmospheric laser communication system大气激光通信系统
1.Design of π-rotation LDPC foratmospheric laser communication system and its performance analysis;大气激光通信系统中π-旋转LDPC码的设计与性能分析
英文短句/例句
1.Research of Adaptive Equalization in Atmosphere Communication System;大气激光通信系统中的时域均衡研究
2.Research of Turbo Codes in Atmosphere Communication System;大气激光通信系统中Turbo码的研究
3.Study on Laser Atmosphere Communication System Based on TMS320C54x DSP基于TMS320C54x DSP的大气激光通信系统的研究
4.A Research on the Polarization of the Laser in Atmospheric Laser Communication System大气激光通信系统的激光偏振特性研究
5.Design for FSO System and Experiment of Optical Subsystem;大气激光通信系统设计及其光学系统实验
6.Research and Analysis for the Performance of Turbo-code in Atmospheric Laser Communication System大气激光通信系统Turbo码的研究与系统性能分析
7.Experimental Measure and Analysis of the Error Code Characteristic in the ALC System;大气激光通信系统误码特性的实验测量与分析
8.The Application of TCM in Atmosphere Laser Com Munication System;TCM技术在大气激光通信系统中的应用研究
9.Design and Implementation of LDPC Codes in Atmosphere Laser Communication System;大气激光通信系统中LDPC码的设计与实现
10.The Performance of Turbo-Decoder in Wireless Optical Communication System;基于大气激光通信系统的Turbo码译码性能研究
11.Research on Free Space Optical Communication System and Its Major Components;大气激光通信系统及其主要部件的研究
12.Research and Implement of Reed-Solomon Codes in Atmosphere Communication System;大气激光通信系统中RS码的研究与实现
13.Research and Simulation of Ldpc Code in Atmosphere Communication System大气激光通信系统中的LDPC码的研究与仿真
14.Influence of Fog on Atmospheric Laser Communication System and the Relevant Methods雾对大气激光通信系统的影响及克服方法
15.Effects of turbulence sizes on the error rate of atmospheric laser communication system湍流尺度对大气激光通信系统误码率的影响
16.Simulation and Design of ATP Subsystem in Atmospheric Laser Communication;大气激光通信中ATP系统的仿真与设计
17.Design of PPM for Laser Communication in Atmosphere;大气激光通信PPM调制解调系统设计
18.Design and Implementation of Transmitting System in Atmospheric Laser Communication;大气激光通信发射系统的设计与实现
相关短句/例句
free-space laser communication激光大气通信
1.Analysis of the parameters influencing the distance offree-space laser communication;影响激光大气通信距离的诸因素分析
2.Free-space laser communication is becoming attractive as a new wireless access technology in recent years because it combines advantages of fiber optical communication and microwave communication.激光大气通信系统由于结合了光纤通信和微波通信的优势,近年来作为一种新型宽带无线接入方式越来越受到重视。
3)Laser atmospheric communication激光大气通信
1.The paper mainly designs the part of electronics of laser atmospheric communication system.本文主要对激光大气通信的电子学系统进行了设计。
4)atmospheric laser communication大气激光通信
1.Atmospheric attenuation and turbulence seriously affect the performance ofatmospheric laser communication.大气衰减和大气湍流严重影响着大气激光通信的链路质量。
2.Based on characterizations of atmospheric turbulence channel, various turbulence effects on performance ofatmospheric laser communications system are analyzed.基于大气湍流信道的特点,分析了各种湍流效应对大气激光通信系统性能的影响,介绍了自适应光学相位补偿技术在大气激光通信系统中的应用进展,特别指出基于随机并行梯度下降(SPGD)算法的自适应光学技术由于具有诸多优点,在未来的大气激光通信系统中可能有较为广阔的应用前景。
3.The rain,snow,and fog in the atmosphere significantly affect the quality and reliability ofatmospheric laser communication.大气中的雨、雪、雾等对大气激光通信的质量和可靠性影响很大。
5)atmosphere laser communication大气激光通信
1.Blind Equalization Using Higher-Order Statistics for Atmosphere Laser Communication Channel;基于高阶累积量的大气激光通信信道盲均衡的研究
2.Design and Implementation of LDPC Codes in Atmosphere Laser Communication System;大气激光通信系统中LDPC码的设计与实现
3.Parameters of multi-pulse pulse position modulation(MPPM) were analyzed to resolve extension transmission bandwidth for pulse position modulation(PPM) inatmosphere laser communication.为了解决大气激光通信中单脉冲位置调制(PPM)的传输带宽扩张的问题,分析了多脉冲位置调制(MPPM)的传信能力、传输效率、带宽利用率等性能参数。
6)atmosphere laser communicator大气激光通信机
1.Design of ATP in Atmosphere Laser Communicator大气激光通信机ATP系统设计
2.The development of a new type of 155Mb/satmosphere laser communicator一种新型155Mb/s大气激光通信机的研制
3.Through outdoor testing on one set of prototype which is new developed 155Mb/s 5kmatmosphere laser communicator for more than one year, this paper makes a detailed analysis and theoretic discussion on the work conditions of the equipments under different weather factors.利用一套新研制的155Mb/s5km大气激光通信机做为测试样机,进行了长达一年多的外场实验,对设备在不同气象因素条件下的工作情况进行了详细分析和理论探讨,给出了晴、阴、雨、雾、霾、大风等各种天气条件下对光通信链路的影响结果及分析。
延伸阅读
激光通信利用激光作为传输信息的载体进行的通信。激光和无线电波一样同属于电磁波。激光的频率成分比较单纯，容易进行调制，而且方向性极好，光束散开角很小，是一种很理想的光载波。激光通信中各个信道之间不会互相干扰，能避免中短波、微波通信中经常发生的同频干扰和邻频干扰现象。激光的频率很高，频段极宽，按理论计算，可容纳上百亿个话路，可传上千万套电视节目，潜在的通信容量极大。激光作为光载波传送信息，可以经过大气传输，也可经光纤维传输。经过大气传输，光信号会受到严重衰减，大气中的任何意外飞行物体的遮挡，都可使通信中断,人们已利用大气进行光通信试验多年,进展不大。但是，激光通信象微波通信一样，不需敷设线路，方向性好，对于近距离机动通信，尤其对新闻信息的现场采访传输，仍有一定的实用价值。在没有大气影响的宇宙空间完成卫星之间的通信，利用激光进行传输是大有前途的。为避免大气传输所带来的缺欠，已研制出损耗较小的光导纤维。如果通过光导纤维传输,构成光纤通信,就传输稳定，大大减少传输损耗。光纤通信保密性好，不受外界电磁干扰，有极广阔的应用前景。20世纪80年代以来，光纤通信发展迅速。中国也建立了不少光纤通信的实用电路。
