Moving digital TV is a digital TV that can be watched in a mobile state.Caravan TV has the characteristics of wide coverage, rapid response, and strong mobility. It can maintain the clearness of the picture in both high -speed movement or fixed state. Welling for information.  
 
The vehicle TV system can be divided into two subsystems of the sending end and the receiving end, and from a technical perspective, it can be divided into two parts: source and channel. The vehicle TV system is mainly composed of Xinyuan encoding/decoding, multi -way reuse/solution multi -road reuse, channel encoding/decoding and modulation/demodulation and other parts.  
 
The source coding mainly includes video coding, audio coding and data coding. Multi -way reuse is the special flow of the video, audio and auxiliary data sent by the letter source encoder, and process it into a single -way serial ratio, and give it to the channel coding system.  
 
The channel coding is to ensure the reliability of signal transmission, and improve the anti -interference ability of signals by technical such as error correction coding and equilibrium. The subsequent signal is sent out after the modulation of the device is modulated.