Characterization of multipath distortion of FSK signals

  • Wonzoo Chung*
  • , C. R. Johnson
  • , M. J. Ready
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

In this letter, we characterize the nonlinear distortion of frequency-shift keying (FSK) signals due to a multipath channel as a linear time varying channel. The dynamic range of time variation of this time-varying channel model is small for a mild multipath channel and large for a severe multipath channel. This characterization justifies the use of a decision directed adaptive linear equalizer for FSK signals after frequency demodulation in order to mitigate the distortion due to a multipath channel.

Original languageEnglish
Pages (from-to)26-28
Number of pages3
JournalIEEE Signal Processing Letters
Volume9
Issue number1
DOIs
Publication statusPublished - 2002 Jan
Externally publishedYes

Bibliographical note

Funding Information:
Manuscript received November 10, 2000; revised October 9, 2001. This work was supported in part by NSF Grant ECS-9811297 and Applied Signal Technology. The associate editor coordinating the review of this manuscript and approving it for publication was Dr. G. Ramponi. W. Chung and C. R. Johnson, Jr. are with the School of Electrical and Computer Engineering, Cornell University, Ithaca, NY 14853 USA (e-mail: [email protected]). M. J. Ready is with Transcendent Technology, Inc., Sunnyvale, CA 94086. Publisher Item Identifier S 1070-9908(02)02416-1.

Keywords

  • Blind equalization
  • FSK modulation
  • Multipath distortion

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering
  • Applied Mathematics

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