| Digital transmission of TV signals with analog TV radio wave propagation of very different, it is by the number "0" and "1" consisting of a series of binary data for dissemination, currently major general transmission of the world:the spread of terrestrial digital television, digital satellite television and digital cable TV. At the same time, as some PAL\NTSC and SECAM analog TV standard, also has its main digital TV transmission standard:United States ATSC, European DVB and Japan’s ISDB. The first two standards in the world of more widely used worldwide, in particular DVB has gradually become the mainstream world of digital TV standard.This article presents a more systematic overview of the current digital TV signal transmission technology. And a systematic summary of previous research in this area, combined with their own study to the theoretical knowledge and previous experience, through their own practical experience in related fields and to study the digital TV signal transmission technology. Explore our current lack of digital TV signal transmission technology and existing wired signal transmission integrated test and evaluation, according to experimental results, I believe that the wireless digital signal transmission technology of the satellite transmission of digital signals is the solution to the digital TV signal China’s wired the best solution for transmission.In the entire research process, because of their own in the digital TV signal transmission related field may be due to the lack of more practical experience, but also because of their own in the aspects of the theory of knowledge is not deep. Therefore in the entire research process may have a more accurate enough to place or at some technology related to the definition and understanding may be biased. I will be in the days after a lot of field enhancement associated with the theory and practice of knowledge, to better improve themselves in this knowledge system. |
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