Technology and standards of digital television terrestrial multimedia broadcasting [Topics in Wireless Communications]

摘要

The digital television terrestrial multimedia broadcasting standard was ratified on August 18, 2006, and is the mandatory digital television terrestrial broadcasting standard in China. DTMB defines the signal frame structure, the coding and modulation schemes, and adopts timedomain synchronous orthogonal frequency-division multiplexing technology using pseudo random sequence as both the guard interval of the OFDM block and the training symbol. It can deliver fast system synchronization, accurate channel estimation, high spectrum efficiency, and excellent single-frequency network performance. This article covers the major features of the DTMB standard, its industrialization, current deployment status, and various applications based on the DTMB standard.