I. Introduction
Digital Audio Broadcasting (DAB) will presumably become be a widely used broadcasting standard in digital mobile multimedia. It is expected to lead to an important revolution in audio broadcasting and related industries such as advertisement and commercial music production. Although AM and FM sound broadcasting provides acceptable service to properly installed receivers, compact disc (CD) quality sound is not available in these traditional broadcasting systems. Especially in built-up areas, FM radio signals are often distorted by multi-path propagation. Moreover, traditional broadcasting systems in many countries face rapidly growing spectrum congestion, which inevitably increases levels of interference. In contrast to AM and FM radio, the new DAB systems provide much better audio quality to fixed, portable and vehicular receivers. The Eureka 147 project developed a DAB prototype that has been adopted as a digital audio broadcasting standard by ITU-R.