Application of New Error Correction Coding Techniques in Digital Terrestrial Television Broadcasting
Error correction coding technology is the key to ensure the reliability of digital television terrestrial transmission and improve the utilization rate of spectrum.By analyzing the transmission characteristics of digital television terrestrial channel,and expatiating the influence of many factors on transmission performance,the urgent demand for error correcting coding technology in physical layer is clarified.After discussing the limitation of traditional coding technology,this paper introduces the basic principle,encoding and decoding of Low-Density Parity-Check(LDPC)code and Polar code,and further analyzes the application strategy of LDPC-Polar concatenation code.
digital televisionterrestrial broadcastingerror correction coding
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