Title :
Performance of stochastic and deterministic dithered quantizers
Author :
Carbone, Paolo ; Petri, Dario
Author_Institution :
Dipt. de Elettronica e dell´´Inf., Perugia Univ., Italy
Abstract :
In this paper the authors discuss the use of deterministic and stochastic dither sequences in analog-to-digital conversion including data post-processing. The properties of both types of dither signals are highlighted and a performance comparison is carried out by considering residual bias and mean square error. It is concluded that superior performance can be attained by deterministic dither in terms of system resolution and accuracy, at the expense of worse spectral characteristics. Experimental results are provided to support simulations and theoretical analysis
Keywords :
quantisation (signal); sequences; signal sampling; stochastic processes; ADC; analog-to-digital conversion; data post-processing; deterministic dithered quantizers; dither sequences; mean square error; performance comparison; residual bias; spectral characteristics; stochastic dithered quantizers; system accuracy; system resolution; Analog-digital conversion; Analytical models; Digital signal processing; Error correction; Instruments; Quantization; Signal processing; Signal resolution; Stochastic processes; Switches;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1999. IMTC/99. Proceedings of the 16th IEEE
Conference_Location :
Venice
Print_ISBN :
0-7803-5276-9
DOI :
10.1109/IMTC.1999.776104
