Abstract:

The technologies for the transmission and reception of digital TV signals are discussed in detail.The stable source of signals and good anti-interference transmission are the guarantee of good quality of TV images,and fast distortion-free codec is the basic requirement of the receiver.A system-level application of digital TV signals is possible only if high quality emission,transmission and reception are achieved.The three links are covered respectively,and the trend of development of TV signal processing systems is pointed out.

Key words: satellite digital signal;launch technology;receiving technology