THE DESIGN OF RS (255,239) ENCODER BASED ON ADSL

摘要

The design of RS (255,239) encoder based on ADSL system GF (2 8) is studied, the core encoder multiplier unit and limited domain constant realization of hardware are presented in the paper. Because the coding process adopts 16 dedicated constant multiplier units, with variable comparison multiplier unit using before, which greatly simplified the hardware structure of multiplier unit, saved the hardware area, and improved the speed of multiplier unit. In addition, the performance of RS (255,239) coding is validated using the MATLAB programming language.