调制传输
- 网络Modulation transmission
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进行了50Gb/sPRBS信号强度调制传输实验和25Gb/s双二进制码型传输实验,得到相关数据和眼图。
Implement 50Gb / s PRBS intensity modulation transmission experiment and 25Gb / s PRBS duobinary modulation transmission experiment . Get useful datas and eye diagrams .
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光纤系统中的普适弱调制传输矩阵及其在噪声演化分析中的应用
A Generalized Weak Modulation Transmission Matrix in Optical Fiber Systems and Its Application to Noise Evolution Analysis
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工作点偏移对光纤AMCATV外调制传输性能的影响
Influence of Bias Point Drifting on Optical Fiber AM CATV Externally Modulated Transmission
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对于光纤AMCATV外调制传输,调制器的偏置工作点设置是非常重要的。
The Modulator ′ s bias point setting is very important for optical fiber AM CATV externally modulated transmission .
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先进的16-QAM线性无线调制传输技术在BOX系统中的应用
Application of 16-QAM in BOX system
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空间分辨力的检测方法有:线对法,圆孔法,调制传输函数法(ModulationTransferFunction,简称MTF)等。
The detection methods of spatial resolution include : line pair method , circular method , modulation transfer function method ( Modulation Transfer Function , referred to as MTF ) etc. .
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光纤中的受激布里渊散射效应限制了调幅有线电视(AMCATV)外调制传输中的最大注入光功率,这对有线电视传输是不利的,因而必须采取措施抑制。
Stimulated Brillouin scattering ( SBS ) in optical fiber limits the maximum launch power of Am CATV externally modulated transmission system , for the reason it must be suppressed .
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分析了采用传统传输模式的AC-AC型非接触电能传输系统存在的缺点,研究了包络线调制传输模式下的系统结构。
The drawbacks of AC-AC type CPT system with traditional power transfer mode are analyzed . The system structure under envelope modulation transfer mode is studied .
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受激布里渊散射SBS的抑制是光纤AM-CATV外调制传输系统中关键技术之一。
Stimulated Brillouin Scattering ( SBS ) suppression is one of the key technology in optical fiber AM CATV externally modulated transmission system .
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提出了基于包络线调制传输模式的AC-DC型非接触电能传输系统结构,给出了一种适用于该结构的能量注入式AC-AC变换拓扑,分析了该拓扑的系统特性。
An AC-DC type CPT system structure based on envelope modulation mode is presented . An energy injection AC-AC type topology is proposed for the structure . Its system characteristics are analyzed .
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在简要介绍8~30m范围内红外线自动计数原理后,较详细地报道了一种简单实用,工作可靠的红外光脉冲调制传输型电路的设计方法。
The paper elaborates a method of designing a simple and stable circuit that is used for pulse modulation of infrared transmission . On the basis of the discussion about the principle of the infrared automatic counting within a range of 8 ~ 30 meters .
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多径信道下图像的信源信道联合编码调制传输
Image transmission over multipath fading channel using joint source channel coding modulation
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多元数字调制传输特性的仿真研究
Simulate Research of Transmission 's Characteristic of MQAM
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激光抖动法抑制光纤调幅有线电视外调制传输中的受激布里渊散射
Laser Dithering to Suppress Stimulated Brillouin Scattering in ? Optical Fiber AM CATV Externally Modulated Transmission System
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它能调制传输的和反射的光,对光波的振幅、相位、频率等进行调制。
It can modulate transmission and reflection of light , modulate the light wave amplitude , phase , frequency .
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调制传输函数可对线性影像系统的频率传输特性进行描述。
Method Modulation transfer function ( MTF ) was used to analyze the spatial frequency transfer characteristics of CT and MRI .
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并提出了一种基于联合定位技术的自适应编码调制传输方案,该方案可有效提高系统资源的综合利用率。
Furthermore , it proposes a solution on adaptive coded modulation system using the hybrid position location technology , which can improve the exploitation of systems .
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然而,高清晰数字电视是一个复杂的系统,它包含高清晰数字电视节目的录制,压缩编码,调制传输,解调接收,解码,显示等~系列关键技术。
However , high-definition digital television is a complex system , which includes recording of high-definition digital television programs , coding , modulation and transmission , receiving and demodulation , decoding and displaying key technologies .
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为提高符号干扰信道中传输的可靠性,研究了强行提高符号速率的低维调制传输方式,并与相同传信率和相同系统带宽条件下的高维调制传输方式进行了误码性能的比较。
In order to improve the transmission performance in intersymbol interference ( ISI ) channel , high rate lower-order modulation transmission with ISI was studied and the error rate performance of lower-order modulation and higher-order modulation with the same message rate and band width was compared .
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就水下彩色图像传输这一研究课题,提供了其调制和传输控制部分的DSP解决方案。
The paper describes the design of modulation and transmission control in the underwater color image transmission system .
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RS-MPSK编码调制在传输压缩图像的Rayleigh衰落信道中的性能
Performance of RS-coded MPSK schemes in transmitting compressed image over Rayleigh fading channel
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最后还研究了光放大器自发辐射对相位调制系统传输性能的影响,结果表明ASE噪声是影响DPSK系统传输距离的主要因素。
In the end we studied the impact of optical amplifiers ' spontaneous emission to transmission performance of phase modulation systems , it turned out that the main factor to limit transmission distance of DPSK system was ASE noise .
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音视频脉冲频率调制光纤传输系统的研制
Design for PFM Fibre Optic Audio & Video Transmission Systems
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一种基于高阶统计量调制的传输码
A Transmission Code Based on High - Order Statistics Modulation
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光致折射晶体中高速调制光束传输和放大的理论研究
Theory of transmission and amplification of high speed amplitude modulated beam in photorefractive crystal
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一种可被调制以传输信号的无线电波。
A radio wave that can be modulated in order to transmit a signal .
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基于窄带光纤光栅的单边带调制及其传输特性硅片边缘上光刻胶的积累
Optical SSB modulation using fiber Bragg grating and its transmission performance photoresist edge build up
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通过介绍研究混沌系统的理论基础,本文利用混沌码作为扩频码,提出利用复合混沌系统参数调制来传输信息,利用复合混沌系统参数调制的优点在于一方面可以实现信息的加密;
This thesis uses chaotic code as PN code and transforms information by using compound chaotic parameters modulation .
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该方案可以用于需要以脉冲编码调制方式传输信号的便携式测量系统。
This method can be widely used in the portable measurement system which needs transfer signal through PCM modulation .
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介绍了V/F转换的信号调制,传输原理,V/F转换的优越性。
The signal modulation , principle of transmission and advantages of V / F conversion are introduced at first in this paper .