Characterization of multipath distortion of FSK signals

Wonzoo Chung; C. R. Johnson; M. J. Ready

doi:10.1109/97.988721

Characterization of multipath distortion of FSK signals

Wonzoo Chung, C. R. Johnson, M. J. Ready

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

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 language	English
Pages (from-to)	26-28
Number of pages	3
Journal	IEEE Signal Processing Letters
Volume	9
Issue number	1
DOIs	https://doi.org/10.1109/97.988721
Publication status	Published - 2002 Jan
Externally published	Yes

Keywords

Blind equalization
FSK modulation
Multipath distortion

ASJC Scopus subject areas

Signal Processing
Electrical and Electronic Engineering
Applied Mathematics

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10.1109/97.988721

Cite this

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title = "Characterization of multipath distortion of FSK signals",

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.",

keywords = "Blind equalization, FSK modulation, Multipath distortion",

author = "Wonzoo Chung and Johnson, {C. R.} and Ready, {M. J.}",

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: wonzoo@ee.cornell.edu). M. J. Ready is with Transcendent Technology, Inc., Sunnyvale, CA 94086. Publisher Item Identifier S 1070-9908(02)02416-1.",

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AU - Chung, Wonzoo

AU - Johnson, C. R.

AU - Ready, M. J.

N1 - 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: wonzoo@ee.cornell.edu). M. J. Ready is with Transcendent Technology, Inc., Sunnyvale, CA 94086. Publisher Item Identifier S 1070-9908(02)02416-1.

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N2 - 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.

AB - 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.

KW - Blind equalization

KW - FSK modulation

KW - Multipath distortion

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JO - IEEE Signal Processing Letters

JF - IEEE Signal Processing Letters

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Characterization of multipath distortion of FSK signals

Abstract

Keywords

ASJC Scopus subject areas

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