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multiple carrier modulation
相关语句
  多载波调制
     Discussion on ADC in Multiple Carrier Modulation VDSL System
     多载波调制体系VDSL系统中ADC问题的探讨
短句来源
  “multiple carrier modulation”译为未确定词的双语例句
     OFDM inherently attains the merits of Multiple Carrier Modulation (MCM), i.e. efficient parallel modulation and long symbol period, which makes the accurate symbol synchronization in assistance with the Guard Interval or Cyclic Prefix for the OFDM receiver. Meanwhile, with the parallel modulation, OFDM could utilize a frequency selective fading channel as several flat fading channels, thus improving the transmission efficiency tremendously.
     OFDM继承了传统MCM中多载波并行调制、符号周期相应增长的特点,在保护间隔或循环前缀的辅助下可以实现准确的符号同步,有效地将原本频率选择性衰落的信道转化为了多个并行平衰落信道使用,从而大大提高了传输效率。
短句来源
  相似匹配句对
     The Carrier
     浅谈催化反应中活性组分的载体
短句来源
     Application of Multiple-carrier Modulation in Communication Systems
     多载波调制在通信系统的应用
短句来源
     Discussion on ADC in Multiple Carrier Modulation VDSL System
     多载波调制体系VDSL系统中ADC问题的探讨
短句来源
     Conflict Resolution Problem of Carrier Sense Multiple--access
     载波监测多址的冲突分解问题
短句来源
     Multiple neurolemmoma
     多发性神经鞘瘤
短句来源
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  multiple carrier modulation
Average input current waveforms using multiple carrier modulation at a modulation index of 0.75 and power factor of 0.8 for a five-level converter.
      


The paper begins with briefly explaining the significance of the Multiple-carrier Modulation (MCM) /the Multiple Sub-carrier Modulation (MSM). Then, it describes how the MSM may be applied to the Optical Wireless Communication Systems. Finally, it explains the influence of atmospheric optical communication on the MSM application.

首先简单解释多载波调制MCM/多路副载波调制MSM的由来和在高速率通信系统的可能利用。其后着重 地提出多路副载波调制适合于光无线通信的应用。最后说明大气光通信对多路副载波调制的影响。

The basic idea of OFDM is that the transmitted data stream is divided into multiple bit streams,which have a lower transmission bit rate and modulate multiple parallel carriers respectively.OFDM has a strong resistance to multipath time delay and hence is a potential solution scheme for high-rate data transmission,since the symbol duration time in it is increased.This paper investigates mainly the principle of implementing multiple-carrier modulation based on the FFT algorism...

The basic idea of OFDM is that the transmitted data stream is divided into multiple bit streams,which have a lower transmission bit rate and modulate multiple parallel carriers respectively.OFDM has a strong resistance to multipath time delay and hence is a potential solution scheme for high-rate data transmission,since the symbol duration time in it is increased.This paper investigates mainly the principle of implementing multiple-carrier modulation based on the FFT algorism and the channel equalization techniques in OFDM.Finally,the application of OFDM to high definition television (HDTV) transmission systems and hybrid fiber cable (HFC) networks is introduced.

OFDM的基本思想是将所要传输的数据流分解成多个比特流,每个子数据流具有低得多的传输比特速率,并且用这些数据流去并行调制多个载波.由于符号持续时间的加长,因而它对多径时延扩展有较强的抵抗力,是对高速数据传输的一种潜在的解决方案.本文着重讨论了OFDM基于FFT算法实现多载波调制的原理以及OFDM中的信道均衡技术,最后介绍了OFDM在HDTV传输系统和HFC网中的应用.

The technology of orthogonal frequency division multiplexing is a kind of multiple carrier modulation technology which can transfer high bit rate data. It has the advantages of anti-jamming, anti-declining and high using rate of channel. Based on the introduction of the principle of OFDM, some critical technologies of OFDM system are mainly discussed in this paper combined with some problems existing in practical applications.

正交频分复用技术是一种具有很强的抗干扰和抗衰落能力、较高的信道利用率的多载波高速数据传输技术。在介绍了OFDM基本原理的基础上,结合实际应用中的问题着重讨论了正交频分复用系统中的关键技术和问题。

 
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