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Effects of input data correlation on the convergence of blind adaptive equalizers
School of Electrical Engineering, Cornell University, Ithaca, NY, United States.
Dept. of Systems Engineering, RSISE, Australian National University, Canberra, 0200, ACT, Australia.
Dept. of Systems Engineering, RSISE, Australian National University, Canberra, 0200, ACT, Australia.
School of Electrical Engineering, Cornell University, Ithaca, NY, United States.
1994 (English)In: ICASSP-94: 1994 IEEE International Conference on Acoustics, Speech and Signal Processing, April 19 - 22, 1994, Adelaide Convention Centre, Adelaide, South Australia; [proceedings], Piscataway, NJ: IEEE Communications Society, 1994, p. III/313-III/316Conference paper, Published paper (Refereed)
Abstract [en]

A variety of blind equalization algorithms exist. These algorithms, which draw on some theoretical justification for the demonstration or analysis of their purportedly ideal convergence properties, almost invariably rely on the input data being independent and identically distributed (i.i.d.). In contrast, in this paper we show that input correlation can have a marked effect on the character of algorithm convergence. We demonstrate that under suitable input data correlation and channels: (i) undesirable local minima present in the i.i.d. case are absent for certain correlated sources implying ideal global convergence for some situations and, (ii) the most commonly employed practical algorithm can exhibit ill-convergence to closed-eye minima even under the popular single spike initialization when an eye-opening equalizer parameterization is possible.

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Communications Society, 1994. p. III/313-III/316
National Category
Signal Processing
Research subject
Signal Processing
Identifiers
URN: urn:nbn:se:ltu:diva-32026DOI: 10.1109/ICASSP.1994.390035Scopus ID: 2-s2.0-33747277969Local ID: 661db300-a028-11db-8975-000ea68e967bOAI: oai:DiVA.org:ltu-32026DiVA, id: diva2:1005260
Conference
IEEE International Conference on Acoustics, Speech, and Signal Processing : 19/04/1994 - 22/04/1994
Note

Upprättat; 1994; 20070109 (ysko)

Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2023-05-08Bibliographically approved

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Leblanc, James

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