Digital broadcasting transmission/reception system having improved receiving performance and signal processing method thereof

摘要

A digital broadcasting transmission/reception system having improved receiving performance and signal processing method thereof. A digital broadcasting transmitter according to the present invention includes a data pre-processor which processed robust data and generates robust data packet of predetermined format, a TS stream generator which combines robust data packet with a normal data packet to generate a TS stream of a predetermined format, a randomizer which randomizes the TS stream output from the TS stream generator, a convolution encoder which performs convolution encoding with respect to the robust data of the data output from the randomizer, and a RS encoder which performs RS encoding with respect to the data output from the convolution g encoder. Accordingly, digital broadcasting receiving performance can be improved in a poor multipath channel, while maintaining compatibility with existing transmission/reception system.

主权项

1. A digital broadcasting receiver comprising:
a decoder for decoding an additional data in response to a transport stream (TS) comprising the additional data and a normal data being received; and a Reed-Solomon (RS) decoder to perform RS decoding of the decoded additional data output front the decoder, wherein the decoder includes trellis decoder for trellis decoding the additional data and convolutional decoder for convolutional decoding the trellis decoded additional data without convolutional decoding the normal data, and wherein the trellis decoder and the convolutional decoder exchange decoding reliability information with each other.