ERROR MANAGEMENT IN DIGITAL TERRESTRIAL TELEVISION BROADCASTING

A digital transmission broadcasting system must be able to control degradation of the received picture due to transmission errors. Error correcting algorithms are one of the most powerful technologies, but the many other techniques for error control should not be forgotten. A total approach to error management must be applied when designing a digital terrestrial television broadcasting (DTTB) system. Other important technologies include error detection and concealment methods; transmission equalization technologies; modulation systems, including coded modulation; and weighted error protection systems. A knowledge of error features in digital terrestrial broadcasting and of optimization methods for total systems is also important for understanding the elements of error control technology.