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THE UNIFICATION OF DIFFERENTIAL ENCODING AND DECODING ALGORITHM FOR VARIOUS SIGNALS

机译:各种信号的微分编码和解码算法的统一

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摘要

Many monographs point out that differential encoding and decoding is necessary for effectual information transmission against phase ambiguity while seldom discuss the reason why phase ambiguity will emerge inevitably. Available algorithms are specially designed for certain modulation scheme; these algorithms cannot satisfy the requirement of soft-defined radio, which perhaps demands a uniform algorithm for different modulations. This paper proposes a new opinion on phase ambiguity from the view of probability. This opinion believes that modulating symbol sequence can affect, at optimum sampling epoch, the modulated waveform as oscillating carrier has done, and so the stochastic sequence leads to phase ambiguity. Based on a general signal model, this paper also puts forward a novel universal algorithm, which is suitable for different signals, even some new ones, by configuring several parameters.
机译:许多专着指出,差分编码和解码对于有效地防止相位歧义信息传输是必要的,而很少讨论相位歧义不可避免地出现的原因。可用的算法是为某些调制方案专门设计的;这些算法不能满足软定义无线电的需求,这可能需要针对不同调制的统一算法。本文从概率的角度对相位模糊度提出了新的见解。该观点认为,调制符号序列可以在最佳采样时间段上影响已调制波形,就像振荡载波一样,因此随机序列会导致相位模糊。在通用信号模型的基础上,提出了一种新颖的通用算法,该算法通过配置多个参数,适用于不同的信号,甚至是一些新的信号。

著录项

  • 来源
    《电子科学学刊(英文版)》 |2007年第5期|600-606|共7页
  • 作者

  • 作者单位

    The College of Information Engineering, The Information Engineering University, Zhengzhou 450002, China;

    The College of Information Engineering, The Information Engineering University, Zhengzhou 450002, China;

    The College of Information Engineering, The Information Engineering University, Zhengzhou 450002, China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 调制理论;
  • 关键词

    Soft-defined radio; Differential encoding and decoding; Phase ambiguity;

    机译:软无线电差分编码和解码;相位模糊;
  • 入库时间 2022-08-19 03:45:24
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