A review of distortion and its measurement in p.c.m. telephony systems
作者:
R.G.Rolls,
期刊:
Radio and Electronic Engineer
(IET Available online 1980)
卷期:
Volume 50,
issue 7
页码: 353-362
年代: 1980
DOI:10.1049/ree.1980.0054
出版商: IERE
数据来源: IET
摘要:
Pulse code modulation systems as used in telephony networks are briefly described with particular regard to the inherent quantizing distortion (q.d.). Test methods for the evaluation of signal to q.d. ratio, from analogue input to analogue output, are reviewed. Three test stimuli are considered and their advantages and disadvantages discussed. The three stimuli are a sinusoid, a band-limited noise signal and a band-limited pseudo-random noise signal.
点击下载:
PDF
(954KB)
返 回