2004
DOI: 10.1016/j.dsp.2004.05.002
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A simple comparison of constant modulus and Wiener criteria for equalization with complex signals

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Cited by 6 publications
(5 citation statements)
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References 9 publications
(12 reference statements)
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“…This figure presumes that the frequency of the target sinusoid is ω = 2π N ( + ∆ ) (with 0.0 ≤ ∆ < 1.0), and that instead of the DFT, the discrete time-frequency transformation is achieved by means of the Odd-frequency DFT (ODFT) [36]. The ODFT consists of a slight modification of (4), in the sense that the exponent in the complex exponential, −j 2π N kn, is replaced by −j 2π N (k + 1 2 )n; please see [37,46,65] for details.…”
Section: Sine Window-based Estimatorsmentioning
confidence: 99%
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“…This figure presumes that the frequency of the target sinusoid is ω = 2π N ( + ∆ ) (with 0.0 ≤ ∆ < 1.0), and that instead of the DFT, the discrete time-frequency transformation is achieved by means of the Odd-frequency DFT (ODFT) [36]. The ODFT consists of a slight modification of (4), in the sense that the exponent in the complex exponential, −j 2π N kn, is replaced by −j 2π N (k + 1 2 )n; please see [37,46,65] for details.…”
Section: Sine Window-based Estimatorsmentioning
confidence: 99%
“…present an iterative algorithm to estimate the frequency of a cisoid. This algorithm presumes the rectangular window and uses an interpolation formula that requires two additional DFT coefficients, which, in fact, correspond to Odd-DFT (ODFT) coefficients [36,37] (see also Section 3.3). This algorithm, known as the Aboutanios and Mulgrew (A&M) algorithm, exhibits a performance that is very close to the Cramér-Rao lower bound (CRLB).…”
Section: Introductionmentioning
confidence: 99%
“…n), o que implica na igualdade E{c ℓ a R (n − ∆)} = E{c ℓ y R (n)} = 0. O mesmo se aplica para c m .As suposições A3 e A4 são similaresàs feitas em[SUYAMA et al, 2003;BELLANGER, 2004].…”
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“…Em especial, os trabalhos[SUYAMA et al, 2003;SUYAMA, 2003] abordaram a relação entre as soluções dos critérios do módulo constante e do MSE de forma simples e elegante para sinais de módulo constante do tipo 2-PAM. Esses resultados foram estendidos em[BELLANGER, 2004] para o caso de sinais complexos do tipo 4-QAM. Inspirando-se nos trabalhos[SUYAMA et al, 2003;SUYAMA, 2003] e[BELLANGER, 2004] e usando inclusive as mesmas suposições e aproximações, a seguir são deduzidas as relações entre as soluções autodidatas do RMA e do SBD e a solução de Wiener.…”
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