Transmitter for ultra-high-definition digital television signal transmission on terrestrial channels

Abstract

The invention relates to a transmitter for terrestrial channel transmission of an ultra high definition digital television signal. The transmitter comprises a packing and multiplexing module, an input preprocessing module, an error correction encoding module, a convolution interleaving module, a channel processing module and a digital-up-conversion processing module. The packing and multiplexing module receives ultra high definition digital video and audio data and packs and multiplexes the voice data. The input preprocessing module, the error correction encoding module, the convolution interleaving module, the channel processing module and the digital-up-conversion processing module are sequentially connected so that input preprocessing, error correction coding, convolution interleaving, channel processing and digital-up-conversion processing can be sequentially carried out on a transport stream (TS) output by the packing and multiplexing module, and a radio-frequency signal needed by transmission of a transmitting antenna of the transmitter can be obtained. The transmitter can be used for providing an appropriate channel carrier and a compressed encoding tool for transmission of ultra high definition digital audio frequency and ultra high definition digital video frequency. The requirements for watching audio and video contents with high resolution by a television user are met.

Description

Technical field [0001] The invention relates to the field of ultra-high-definition digital television, in particular to a transmitter for transmitting ultra-high-definition digital television signals on a terrestrial channel. Background technique [0002] Television is an important tool for humans to understand the world, entertaining activities, and monitor and control. In the development of television technology, the initial pursuit is to obtain as much content as possible. Therefore, there has been a trend of digital television replacing analog television. However, with the development of technology With the development of the Internet and the improvement of people’s living standards, people are no longer satisfied with the diversified needs for content. They have begun to pay attention to the quality of information itself, that is, they hope to obtain more and more high-resolution video data, audio data and other data to satisfy individuals. Sensory needs. [0003] However, in...

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Problems solved by technology

[0002] Television is an important tool for human beings to understand the world, entertain activities, monitor and monitor. In the development of television technology, the initial pursuit is to obtain as much content as possible. Therefore, there is a development trend of digital television replacing analog television. However, with the development of technology With the development of the world and the improvement of people's living standards, people can no longer satisfy the diversified needs of content, and begin to pay attention to the quality of information itself, that is, to obtain higher and higher resolution video data, audio data and other data to meet personal needs. sensory needs

[0003] However, in some existing high-definition televisions, the resolution is limited by insufficient data compression ratio and small channel transmission bandwidth. The audio signal with a channel sampling rate of 48KHz, but due to insufficient compression and the limitation of the existing channel transmission mode, it is impossible to send and receive ultra-high-definition digital TV signals, but can only choose audio and video signals with lower resolution to watch, even if Ultra HD resolution video images and audio technology has matured itself

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