- 数据传递系统
- 数据传输系统
- 数据传送系统
- 同步传输系统
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data transmission system中文什么意思
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- With this tech , we design a high - efficient & robust mfsk data transmission system . but in frequency diversity of mfsk system , it is very difficult to tell which diversity is the correct carrier frequency . now we use the temporary phase swift ( ips ) method to solve the difficulty
在2000年，美国海军成功通过水声链路并接入internet网络发送e mail ，这具有重要的战略意义；从科学技术发展的角度来看是喜讯，但对我们这样一个海洋大国来说，更现实的意义在于鞭策自己的科研工作。 - In chapter 1 , the basic principle and structure of the integrated anti - interference data transmission system are introduced . in chapter 2 , the theory of maximum likelihood ( ml ) carrier synchronization parameter estimation ( frequency estimation and phase estimation ) are expatiated , and the closed - loop recovery methods ( phase - locked loop , pll ) and some other arithmetic in common use are introduced
第二章对最大似然( ml )载波同步参数估计(频率估计和相位估计)理论进行了阐述,对常用的闭环恢复法即锁相环( pll )法和一些载波同步参数处理方法进行了介绍,并对常用的载波频率估计方法作了分析比较。 - There are many decoding schemes for convolutional code , such as sequence decoding algorithm , fano algorithm , viterbi algorithm . but in fact , what ' s used widely is viterbi decoding algorithm . the viterbi decoding algorithm , proposed in 1967 by viterbi , is a decoding process for convolutional codes in memory - less channel , which takes full advantage of convolutional codes . since viterbi algorithm is proposed , it has obtained rapid development whether in theoretics or in practice and been applied to all kinds of data transmission systems , especially to digital wireless communications and deep space communications
卷积码的译码算法方案有很多，如序列译码算法、 fano算法、 viterbi算法，但是真正大规模应用的还是viterbi算法。 viterbi译码算法是1967年viterbi提出的，它是一种对无记忆信道卷积码进行译码的算法。它充分发挥了卷积码的特点，因而自viterbi算法提出以来，无论在理论上还是在实践上都得到了极其迅速的发展，并广泛的应用于各种数据传输系统，特别是无线通信和卫星通信系统中。 - After a deep study on the status of the transmission channel in china , we put forward the point that the method to utilize the existing wired television network for a reliable multicast data transmission system has the capability to meet the mentioned challenge , and is a reasonable and applicable means for approaches too
本文深入研究了我国底层传输网络的现状，认为在有线电视网络上建立可靠组播数据传送系统是能够满足上面的要求的，同时也是比较合理和可行的方法。 - We mainly explore the realization scheme of base - band processing unit of data transmission system using fpga in this paper . with the research of the base - band processing unit and designing method of fpga , we detailedly explore convolutional coding and viterbi decoding , and accomplish the designing of base - band processing unit in fpga develop platform of altera company
论文对基带处理单元和fpga设计方法进行了相关研究,尤其对基带处理单元中卷积码编码和viterbi译码进行了深入的研究,并应用altera公司最新的fpga开发平台quartusii5 . 1完成了基带处理单元的设计。
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