The performances of A/D converters are usually characterized in their granular region, by adopting amplitude limited sine-wave testing signals. However, some applications, like digital telecommunication systems, often require the conversion of signals which noticeably differ from sine-waves and may introduce ADC overloading phenomena. In this paper, the A/D conversion of Gaussian distributed signal is investigated, both for PCM and Sigma-Delta converters. Then, the effects of quantization noise upon the behavior of a Digital Communication System are considered. By extending previous results, a model is introduced, which describes the BER
Wideband Communication System Sensitivity to Quantization Noise
MOSCHITTA, Antonio;
2002
Abstract
The performances of A/D converters are usually characterized in their granular region, by adopting amplitude limited sine-wave testing signals. However, some applications, like digital telecommunication systems, often require the conversion of signals which noticeably differ from sine-waves and may introduce ADC overloading phenomena. In this paper, the A/D conversion of Gaussian distributed signal is investigated, both for PCM and Sigma-Delta converters. Then, the effects of quantization noise upon the behavior of a Digital Communication System are considered. By extending previous results, a model is introduced, which describes the BERI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
