Investigation of 9.6 kb/s data transmission via a pcm link at 64 kb/s with and without link errors
作者:
H. Suyderhoud,
F. L. Corcoran,
D. S. Arnstein,
H. Lewis,
期刊:
International Journal of Satellite Communications
(WILEY Available online 1984)
卷期:
Volume 2,
issue 1
页码: 81-87
ISSN:0737-2884
年代: 1984
DOI:10.1002/sat.4600020111
出版商: Wiley Subscription Services, Inc., A Wiley Company
关键词: Data transmission;BER performance;TCM
数据来源: WILEY
摘要:
AbstractThe problem of pulse code modulation (PCM) bit errors causing voice frequency (VF) modem errors has been studied in detail. The error mechanism consists of the addition of an impulse response type error signal added to the reconstructed VF data signal waveform at the digital‐to‐analogue (D/A) output of the PCM decoder. This error signal may cause a burst of errors registering in the VF modem receiver, depending on which PCM bit is in error.Numerous data have been collected in a laboratory experiment and analysed in various ways. The average bit error rate (BER) enhancement factor of VF data over PCM is between 10 and 20. For each PCM bit in error, an average of two VF data bits are in error. The analysis leads to suggestions for possible solutions to the prob
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