New class of zero-forcing cost functions in blind equalization

  • Authors:
  • V. Shtrom;H. Fan

  • Affiliations:
  • ARGOSystems Inc., Sunnyvale, CA;-

  • Venue:
  • IEEE Transactions on Signal Processing
  • Year:
  • 1998

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Abstract

The use of gradient descent recursive algorithms in blind adaptive equalization requires a cost function with a unique minimum such that the FIR equalizer setup removes sufficient intersymbol interference (ISI). A class of such cost functions is proposed. The newly proposed class is based on minimizing the difference between any two norms of the joint channel-equalizer impulse response, each raised to the same power, i.e., ||·||pζ-||·|| ζq, where p