MI-SBTVD: a proposal for the Brazilian digital television system SBTVD

the objective of this paper is to present a general overview of the innovative modulation system project -mi-sbtvd - developed for the brazilian digital tv system. the mi-sbtvd project includes an ldpc high performance error correcting code, an advanced transmit spatial diversity and an efficient multi-carrier modulation scheme. the building blocks of the system, its characteristics and most relevant innovations are presented. the performance of the whole system under different channels is compared with the performance of the present-day digital television standards. the complete system was implemented in fpga using vhdl language and rapid prototyping tools for dsp algorithms.