Optimization of Band Pass Delta Sigma modulators using parameters identification
| Autor: | Gautier, David, Bachir, Smail, Duvanaud, Claude |
|---|---|
| Přispěvatelé: | Laboratoire d'Automatique et d'Informatique Industrielle (LAII), Université de Poitiers, SIC, XLIM (XLIM), Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers, SYSCOM, Bachir, Smail |
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
Signal to noise ratio
Digital filters Radio transmitters [SPI.TRON] Engineering Sciences [physics]/Electronics Delta-sigma modulation Feedback [SPI.TRON]Engineering Sciences [physics]/Electronics [SPI.AUTO]Engineering Sciences [physics]/Automatic [SPI.AUTO] Engineering Sciences [physics]/Automatic Digital modulation Radio frequency Parameter estimation Semiconductor device noise Noise shaping |
| Zdroj: | Conference Publications EuMW European Microwave Conference (EuMC) European Microwave Conference (EuMC), Sep 2009, Rome, Italy. pp.1074-1077 |
| Popis: | International audience; In this paper, a method to study and characterize a single-loop, cascaded and 1-bit band-pass delta sigma (BPΔΣ) modulator for digital transmitter is presented. This technique is based on a combination of digital filter simulation and nonlinear optimization of signal-to-quantization noise. The optimal coefficients of BPΔΣ structure are achieved by minimization of a quadratic criterion based on prediction error between desired digital filter and noise transfer model. To demonstrate the effectiveness of this approach, simulated results for a 6th order cascaded structure for WCDMA band-1 standard are presented. |
| Databáze: | OpenAIRE |
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