模拟通信系统
- 网络analog communication system
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应用Mobius变换对各种常用数字信号的傅立叶级数进行逆变换计算,所得到的结果应用于模拟通信系统,就是一种称之为新型Chen-Mobius的模拟通信系统。
The inverse transform operation of Mobius on Fourier series of some often-used digital signals were used . The results were applied in analog communication system , the newly named system of Chen-Mobius analog communication system , is analyzed .
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传输高稳定原子钟信号的光纤模拟通信系统
Optical fiber analog communication system for transmitting high steady atomic clock signals
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移动通信系统也由第一代的模拟通信系统发展到现在的LTE移动通信系统。
Mobile communication system also has a first generation of analog communications system development to now LTE mobile communication system .
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新型Mobius模拟通信系统的比较研究
The Study of Chen - Mobius Analog Communication Systems and Its Comparations with Traditional Systems
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OPNET是一用来模拟通信系统和预测网络性能的强大仿真工具。
OPNET is a powerful network simulator , which can be used to simulate communication systems and predict network performance .
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最终实现了在8kbit/s速率上能够合成高质量语音的实验室模拟通信系统。
A simulation system for speech communication in laboratory that can synthesize high-quality speech at 8kbit / s rate is realized finally .
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模式噪声是在多模光纤中产生的噪声,表现为对信号的寄生调幅,模式噪声的出现会提高数字通信系统的误码率,降低模拟通信系统的信噪比。
Modal noise , which is generated from multimode fiber , exhibits parasitic amplitude modulation of signals , and degrades the performance of digital and analog communication systems .
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提出了一种较为真实的仿真方法,用两台带声卡的PC机分别模拟通信系统中的发射机和接收机,以模仿连续信号在信道中的传输。
To simulate the transmission of continuous signal in channel , it poses a better simulation method to simulate the transmitter and receiver in communication system by two PC computers with sound blaster .
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模拟通信系统到数字通信系统的转变,是移动通信技术的一次重大革命,在频谱效率、系统容量、保密性以及通话质量方面得到了极大的改善。
It is a great revolution in mobile communication technology for the change from analog communication system to the digital communication system . The revolutionary improvement includes spectrum efficiency , the system capacity , confidentiality and the call quality .
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在对CDMA无线模拟传真通信系统解决方案分析的基础上,本文重点阐述CDMA无线模拟传真接入终端的软硬件设计和实现。
On the basis of analysis about system solution of CDMA wireless analogy fax communication system , as the article key , the design and implementation of CDMA wireless analogy fax accessing terminal is elaborated on .
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GB/T3384-1982模拟载波通信系统网路接口参数
Parameters of interface for the analogue carrier systems over the network
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第四章提出了一种用混沌发送信号进行系统重构并进行一步预测的混沌模拟保密通信系统的解密方法。
In chapter 4 , we proposed a message exaction method which basing on the system reconstruction and one-step predictions to exact the message from simulative chaotic secure communication systems .
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本文在对SR100型一点对多点模拟微波通信系统进行分析研究的基础上,提出了将其改造成为小容量数字化的一点对多点微波通信系统的方案。
Based on the analysis and study of the SR 100 piont-to-multipoint analog radio communication system , this paper proposed a method to develop it into a piont - to - multipoint digital microwave communication system with small capacity .
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从第一部模拟移动通信系统,到第二代数字移动通信技术,再到现在的第三代移动通信技术,无线通信技术发展日新月异。
From the first amplitude modulation mobile communication system , to the second generation mobile communication technology , and then the third generation of mobile communication technology , wireless communication system which can only provide telephone service at the beginning is advancing rapidly .
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采用分裂步长Fourier变换法,计算模拟了通信光纤系统中暗孤子串的相互作用。
The interaction of dark solitons string in Optical-fiber Communication Systems is calculated and analoged by adopting split-step of Fourier transform .
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GB/T7585-1987模拟微波接力通信系统容量系列及波道配置
Capacity series and radio-frequency channel arrangement for analog microwave relay systems
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单片机在模拟坦克电台通信系统中的应用
The SCM 's Application of Communicate System in the Simulate Tank Broadcasting Station
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基于C/S模型的模拟电台通信训练系统研究
Study on the Simulation Transmitter-receiver Training System Based on the Client / Server Mode
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自20世纪90年代,蜂窝移动通信从第一代模拟蜂窝移动通信系统发展成第二代的数字移动通信系统。
1990s , Cell mobile communication system develop the second generation of digital mobile communication system into while being the first generation of mobile communication .
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根据目前模拟集群移动通信系统的发展和现状,给出了一种在用户现有的系统和链路资源下实现漫游联网的方案。
Based on the development and situation of current analog trunking mobile communication system , this paper presents a roaming and interconnecting scheme on the basis of the system in existence and link resources .
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自20世纪80年代中期以来,蜂窝移动通信已从第一代的模拟蜂窝移动通信系统发展到了第二代的数字蜂窝移动通信系统,并正在向第三代蜂窝移动通信系统演进。
Since the mid of 1980 's , cellular mobile communications have developed from the first generation analog cellular mobile communications systems to the second generation digital cellular mobile communications systems . Now they have been evolved into the third generation cellular mobile communications systems .
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代码包含各种规则模拟和计算数字通信系统各个方面!
The Code includes Various routines that simulate or compute aspects of digital communication systems .
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本文主要讨论一种基于系数量化的音频信息隐藏算法,并针对模拟信道传输的通信系统特点对其作了一些改进。
This paper studies information hiding in audio signal by quantifying the amplitude of the transform domain coefficient and does some amelioration for the system communicated in analog circumstance .
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电子电路与综合实验课程是电子、信息、通信类等专业学生重要的基础实践环节之一,主要内容包括混频器、射频功率放大器、模拟调幅调频通信收发系统实验及常用仪器的使用。
Electric Circuit and Comprehensive Experiment course , including the usage of general instrument , mixer , RF power amplifier , analog AM and FM communication system experiments , is one of the important basic practice tache for electronics , information and communication technology major students .
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模拟式微波中继系统;模拟微波接力通信系统
Analog microwave relay system