Title :
Decoding errors in PCM systems with modal pseudoternary codes
Author :
El-Azm, Atef Abou
Author_Institution :
Fac. of Electron. Eng., Menoufia Univ., Egypt
Abstract :
A single transmission error can give rise to multiple errors in the decoded data and this phenomenon is described by the error multiplication factor. This factor can be used to predict the error rate in the decoded data for a given error rate in the received data. This paper describes the problem of error multiplication in the decoder of modal pseudoternary codes. In analyzing such codes it is assumed that the input data is a random, and a suitable Markov chain has been constructed to describe the coded signal. The statistical distribution of number of errors in the decoded data, due to a single transmission error, and the error multiplication factor are also evaluated. Results of computations are presented and discussed for CHDBm codes with m=2 and 3 as examples of these codes
Keywords :
Markov processes; coding errors; decoding; pulse code modulation; ternary codes; CHDBm codes; Markov chain; PCM systems; compatible high density bipolar codes; decoded data; decoding errors; error multiplication factor; error rate prediction; modal pseudoternary codes; random input data; single transmission error; statistical distribution; Ambient intelligence; Binary sequences; Decoding; Error analysis; Filling; Linear code; Phase change materials; Signal analysis; Statistical distributions; Timing;
Conference_Titel :
Radio Science Conference, 1998. NRSC '98. Proceedings of the Fifteenth National
Conference_Location :
Cairo
Print_ISBN :
0-7803-5121-5
DOI :
10.1109/NRSC.1998.711483
