A modified CMA equalizer for the removal of length dependent local minima in AR channels

A modified CMA equalizer for the removal of length dependent local minima in AR channels

Finite-length CMA equalizers contain undesired minima termed length dependent local minima (LDLM), we note that for autoregressive (AR) channels, the equalizer output is correlated with a delayed input at these minima, this property is then used to modify the CMA cost function and remove the LDLM in...

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Veröffentlicht in:IEEE transactions on signal processing 1999-02, Vol.47 (2), p.540-544
Hauptverfasser: Escudero, C.J., Castedo, L., Mitra, U.
Format: Artikel
Sprache:eng
Schlagworte:
Adaptive algorithm
Adaptive equalizers
Applied sciences
Blind equalizers
Channels
Correlation
Cost function
Delay
Detection, estimation, filtering, equalization, prediction
Equalizers
Exact sciences and technology
Information, signal and communications theory
Interference cancellation
Intersymbol interference
Minima
Robustness
Signal and communications theory
Signal processing
Signal, noise
Stochastic processes
Telecommunications and information theory
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Zusammenfassung:Finite-length CMA equalizers contain undesired minima termed length dependent local minima (LDLM), we note that for autoregressive (AR) channels, the equalizer output is correlated with a delayed input at these minima, this property is then used to modify the CMA cost function and remove the LDLM in AR channels.
ISSN:1053-587X
1941-0476
DOI:10.1109/78.740140