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Analysis of an all-digital data-transition tracking loop

By: Pomalaza-Raez, C.A.;

1992 / IEEE

Description

This item was taken from the IEEE Periodical ' Analysis of an all-digital data-transition tracking loop ' An all-digital implementation of the data-transition tracking loop (DTTL) is proposed and analyzed. The input waveform is assumed to be nonreturn-to-zero (NRZ)-coded binary signals. The mathematical analysis of the loop is reduced to the study of a Markov chain which allows the derivation of expressions for the mean square phase error, steady-state probabilities, transient behavior (time to acquire and time to bit slippage), and bit error rate (BER). Theoretical results have been validated using a computer simulation of the loop. The all-digital implementation can take full advantage of advanced technology in memory and processing speeds.<>