Digital Compensation for MASH Sigma Delta Modulators using H-infinity Approach

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題名:	Digital Compensation for MASH Sigma Delta Modulators using H-infinity Approach
作者:	Chou, Yung-shan;Lin, Chun-chen
貢獻者:	æ·¡æ±å¤§å¸é»æ©å·¥ç¨å¸ç³»
關鍵詞:	H-infinity;cascaded sigma-delta modulator;digital filter;dynamic range;signal-to-noise ratio
日期:	2008-10-12
上傳時間:	2011-10-23 21:13:52 (UTC+8)
出版者:	IEEE
摘要:	This paper presents a new digital compensation scheme for MASH (cascaded) sigma-delta modulators (SigmaDeltaMs) with 1-bit quantizer. The compensation scheme is designed based on the well-known internal model principle and H-infinity control theory. For numerical illustration, we concentrate on a MASH 2-1 SigmaDeltaM architecture for low and middle frequencies applications. Comparisons between the proposed SigmaDeltaM and the conventional one are made, which reveal that the proposed SigmaDeltaM outperforms the conventional one in several aspects - signal-to-noise ratio (SNR), dynamic range (DR), output swing.
關聯:	Systems, Man and Cybernetics, 2008. SMC 2008. IEEE International Conference on, pp.3189-3194
DOI:	10.1109/ICSMC.2008.4811786
顯示於類別:	[電機工程學系暨研究所] 會議論文

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