Multiplex digital por divisão em códigos cíclicos.

Abstract

The economy of transmission lines or channels in communications in general, combined with the growing need reliability of current data communications systems, generate the development of digital multiplex systems smart. This work develops and implements in "hardware" a digital multiplexing system by division into cyclic codes that incorporate and exchange, in an adaptive manner with the activity of the channels at the entrance of the system, ability to correct random errors by channel capacity multiplexed. The system incorporates random errors, adaptive to the number of active channels at the input, through cyclic codes correcting random errors with variable redundancy. The basic theory for the description of the system and presented as well as the projected circuits and the discussion of the results.