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TASLP
2010
134views more  TASLP 2010»
14 years 9 months ago
Autoregressive Models of Amplitude Modulations in Audio Compression
We present a scalable medium bit-rate wide-band audio coding technique based on frequency domain linear prediction (FDLP). FDLP is an efficient method for representing the long-ter...
Sriram Ganapathy, Petr Motlícek, Hynek Herm...
128
Voted
TSP
2010
14 years 8 months ago
A nondata-aided SNR estimation technique for multilevel modulations exploiting signal cyclostationarity
Signal-to-noise ratio (SNR) estimators of linear modulation schemes usually operate at one sample per symbol at the matched filter output. In this paper we propose a new method for...
Jaume Riba, Javier Villares, Gregori Vázque...
84
Voted
ISCAS
2008
IEEE
126views Hardware» more  ISCAS 2008»
15 years 8 months ago
Off-time prediction in digital constant on-time modulation for DC-DC converters
—This paper proposes a digital constant on-time control method for high switching frequency DC-DC buck converter, which eliminates the need for high resolution digital pulse-widt...
Na Kong, Dong Sam Ha, Jian Li, Fred C. Lee
SOCC
2008
IEEE
170views Education» more  SOCC 2008»
15 years 8 months ago
A higher-order mismatch-shaping method for multi-bit Sigma-Delta Modulators
—Mismatch-shaping Dynamic Element Matching (DEM) methods are extensively used in multi-bit Sigma-Delta Modulators (SDM) to reduce the effects of element mismatches. To date, only...
Alexander Lavzin, Mücahit Kozak, Eby G. Fried...
95
Voted
ISCAS
2007
IEEE
138views Hardware» more  ISCAS 2007»
15 years 8 months ago
A High-Speed Delta-Sigma Modulator with Relaxed DEM Timing Requirement
Abstract—This paper presents a high-speed digital feedforward Delta-Sigma Modulator which relaxes timing requirement for the Dynamic Element Matching (DEM) algorithm. By making t...
Sunwoo Kwon, Un-Ku Moon