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SPECTRAL CORRELATION METHOD IN THE IDENTIFICATION OF FREQUENCY-SELECTIVE FADING RADIO ENVIRONMENT

SPECTRAL CORRELATION METHOD IN THE IDENTIFICATION OF FREQUENCY-SELECTIVE FADING RADIO ENVIRONMENT
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摘要 Many modulated communication signals exhibit a cyclostationarity (or periodic correlation) property. To exploit the underlying periodicity of the modulated signal in the real-time recognition schcme of radio eilvironments, this letter introduces a spectral correlation method to identify the number and the direction of multi-path in the environment of frequency-selective fading channel. By simulation, the graphs of spatial spectra corresponding to a certain cycle frequency is presented to show the accuracy of spectral correlation method in multi-path environment recognition. Many modulated communication signals exhibit a cyclostationarity (or periodic correlation) prop-erty. To exploit the underlying periodicity of the modulated signal in the real-time recognition scheme of radio environments, this letter introduces a spectral correlation method to identify the number and the direction of multi-path in the environment of frequency-selective fading channel. By simulation, the graphs of spatial spec-tra corresponding to a certain cycle frequency is presented to show the accuracy of spectral correlation method in multi-path environment recognition.
出处 《Journal of Electronics(China)》 2006年第6期921-925,共5页 电子科学学刊(英文版)
关键词 Spectral correlation CYCLOSTATIONARY Software antenna MUSIC 光谱关联 软件天线 无线电物理学 多通路
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参考文献4

  • 1Ping Tan,Lanfen Qi.Identification of Radio Environments in Software Antenna for High-Speed Millimeter Wave Wireless Communication Systems[J].International Journal of Infrared and Millimeter Waves.2003(6)
  • 2Theodore S Rappaport.Wireless Communications Principles and Practice[]..1998
  • 3W. A. Gardner.The spectral correlation theory of cyclostationary time-series[].Signal Processing.1986
  • 4W. A. Gardner.Measurement of spectral correlation[].IEEE Transactions on Applied Superconductivity.1986

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