Invention Grant
US08098720B2 Method and apparatus for suppressing adjacent channel interference and multipath propagation signals and radio receiver using said apparatus 有权
用于抑制相邻信道干扰和多径传播信号的方法和装置以及使用所述装置的无线电接收机

  • Patent Title: Method and apparatus for suppressing adjacent channel interference and multipath propagation signals and radio receiver using said apparatus
  • Patent Title (中): 用于抑制相邻信道干扰和多径传播信号的方法和装置以及使用所述装置的无线电接收机
  • Application No.: US11869661
    Application Date: 2007-10-09
  • Publication No.: US08098720B2
    Publication Date: 2012-01-17
  • Inventor: Francesco Adduci
  • Applicant: Francesco Adduci
  • Applicant Address: IT Agrate Brianza
  • Assignee: STMicroelectronics S.r.l.
  • Current Assignee: STMicroelectronics S.r.l.
  • Current Assignee Address: IT Agrate Brianza
  • Agency: Seed IP Law Group PLLC
  • Agent Lisa K. Jorgenson; Timothy L. Boller
  • Priority: EP06425683 20061006; EP06425686 20061006
  • Main IPC: H04B3/46
  • IPC: H04B3/46 H04B15/00 H04L25/03
Method and apparatus for suppressing adjacent channel interference and multipath propagation signals and radio receiver using said apparatus
Abstract:
A method detects multipath propagation in a modulated digital signal. The method provides a first value of channel frequency, representing the modulated digital signal free of multipath propagation, providing a second value of said channel frequency, representing the modulated digital signal with multipath propagation, and comparing the first and second values. A method detects adjacent channel interference in a modulated digital signal by comparing first and second values of a characteristic parameter of the digital signal, respectively representing the digital signal free of adjacent channel interference and the digital signal affected by adjacent channel interference. In particular, the method obtains a derivative signal, applies a non-linear Teager-Kaiser function to the digital signal and the derivative signal for generating first and second signals respectively representing energy content of the digital signal and energy content of the derivative signal, and processes the first and second signals for generating the second value.
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