Title :
Signal-dependent variable-resolution quantization for continuous-time digital signal processing
Author :
Kurchuk, Mariya ; Tsividis, Yannis
Author_Institution :
Dept. of Electr. Eng., Columbia Univ., New York, NY, USA
Abstract :
A variable-bit quantization scheme is proposed for use in the context of continuous-time digital signal processing, with resolution depended on signal speed. It is shown that a decrease in resolution for fast inputs does not corrupt the inband spectrum, while leading to power savings. Analysis and extensive simulations are provided.
Keywords :
quantisation (signal); signal resolution; continuous-time digital signal processing; signal-dependent variable-resolution quantization; Delta modulation; Detectors; Digital signal processing; Fourier series; Frequency; Power dissipation; Quantization; Sampling methods; Signal processing; Signal resolution;
Conference_Titel :
Circuits and Systems, 2009. ISCAS 2009. IEEE International Symposium on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-3827-3
Electronic_ISBN :
978-1-4244-3828-0
DOI :
10.1109/ISCAS.2009.5117954
