The Design and Implementation of Digital TV Signal Receiving System Based on National Standard DTMB

GUANG-JUN CHEN

Abstract


The design and development of digital TV signal ground receiving system based on the national standard of DTMB, the hardware of the system is composed of main decoding chip Hi2019E, channel demodulation and channel decoding chip Hi330, high-frequency chip TD1600, Flash and SDAM. Operating system uses UC/OS Ⅱ the real-time operating system, and designs the application layer and driver layer, realizes the channel to lock. The system is used at the county level radio and television system, the receiving threshold in the 20dB μ V digital TV signal can be reliably received, meet the DTMB standard requirements.

Keywords


Terrestrial digital TV, Tuner, channel demodulation and decoding, Demultiplexing and source decoding.


DOI
10.12783/dteees/epee2017/18121

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