The working wavelength of UV communication system is confirmed numerically.
利用大气传输模型LOWTRAN对紫外波段的大气传输特性进行了模拟研究,定量考虑了紫外通信系统工作波段的确定,分析了能见度、地理位置、气候季节、传输距离、传播方向、海拔高度和天气情况等对大气紫外透射比的影响。
Using ultraviolet fluorescent lamp as the light source, combining frequency modulation and demodulation technology can achieve a UV communication system with low date rates.
以紫外荧光灯为光源,结合调频和鉴频技术可实现低速率下的紫外通信。
In this paper,transmission rate of ultraviolet communication system has been enhanced by using a kind of demodulation method with AVR microcontroller;this method,which has properly dealt with the transition area problems of 2FSK signals,has properly demodulated the original signals from the modulated signals.
提出了一种用AVR单片机解调来提高紫外通信系统的传输速率的方法,采用AVR单片机设计解调电路,较好地处理2FSK信号的过渡带问题,使传输的信息经调制后能正确解调,传输速率可达到4。
Transmission rate of ultraviolet communication system has been enhanced by using a kind of demodulation method with FPGA,with the method which has properly solved the transition area problems of 2FSK signals,we have properly demodulated original signal from a modulated signal.
提出了一种用FPGA解调来提高紫外通信系统的传输速率的方法;采用FPGA设计解调电路,很好地处理了2FSK信号的过渡带问题,使传输的信息经调制后能正确解调;在传输速率为9。
UV communication is introduced including its composing, working method and principle.
介绍了紫外光通信系统的技术构成以及工作方式和原理,并分析了大气对紫外光通信的影响。
In the paper, the characteristics and operating modes of UV communication and the main factors affecting UV communication are described.
介绍了紫外光通信的性能特点、链路工作方式及影响紫外光通信的主要因素,并分析了紫外光音频通信系统的设备构成及其在军事作战和演习中的应用。
A speech parameter compensation model aiming at UV communication was established by using LSP parameter.
利用线谱对参数建立了针对紫外光通信的语音参数补偿模型,采用基于LSF参数奇偶采样插值方法和丢失能量线性补偿法,对样本的丢包补偿前后相关系数和音质进行了对比。
New Method to Improve Sensitivity of Ultraviolet Communication System
提高紫外光通信系统灵敏度的新方法
Simulation of Turbo-decoder in Ultraviolet Communication System
紫外光通信系统Turbo码译码性能研究
The FPGA implementation of a novel modem for ultraviolet communication system
新型紫外光通信系统调制解调器的FPGA实现
The design of Ultraviolet communication's speech compression system based on DSP
基于DSP的紫外光通信语音压缩系统设计
However, the modulation-demodulation of ultraviolet and voice transmission are the key technologies.
然而，紫外光通信的调制解调技术以及语音传输是整个系统的关键难点。
Study of Free-space UV NLOS Logistics Emergency Communication System
紫外光非视距后勤应急通信系统研究
Computer Simulation and Analysis of the Atmosphere Channel in the UV NLOS Communications
紫外光非视距通信大气信道模拟与分析
Study on the ultraviolet scatter propagation characteristics in wireless optical communication
无线光通信中紫外散射传播特性的研究
Design on emitter of solar blind ultraviolet ray speech communication system
日盲紫外光语音通信发射系统的硬件设计
Ultraviolet light or the ultraviolet part of the spectrum.
紫外光，紫外线的紫外光或光谱的紫外线部分
"a two-channel, tunable, ultraviolet/visible (UV/Vis) detector"
二通道可调式紫外/可见光探测器
Single Channel UV-VIS Spectrum Detection System Design;
单通道紫外可见双光谱检测系统设计
Experiment system on ultraviolet scattering communication and its performance analysis
紫外散射通信实验系统及其性能分析
Progress on the UV and blue light signal transduction in plants
植物中紫外光及蓝光信号转导的研究进展
UV-visible spectrophotometer
紫外-可见光分光光度计
ultra-violet and visible spectrophotometer
紫外可见光分光光度计
Its principle is that ultraviolet light from ultraviolet Hg lamp is modulated to pulsed light, stretching forward to produce the fluorescence.
其原理为由紫外灯发出的紫外光被调制成脉冲激励光,通过探头产生荧光。
Development of Ultraviolet Multi anode (128×128) Microchannel Arrays Photomultiplier Tube
紫外多阳极(128×128)微通道阵列光电倍增管的研制