Multi-carrier digital satellite broadcasting system and digital information transmission method thereof
A digital satellite and broadcasting system technology, applied in the field of digital information transmission, can solve problems such as unsatisfactory performance, and achieve the effects of increasing system flexibility, satisfying mobile reception, and realizing flexible multiplexing
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[0055] A multi-carrier digital satellite broadcasting system and a digital information transmission method thereof according to the present invention will be further described in detail below with reference to the accompanying drawings 1-20.
[0056] 1. Multi-carrier digital satellite broadcasting system and digital information transmission method
[0057] As shown in Figure 1, a kind of multi-carrier digital satellite broadcasting system of the present invention comprises source coder 1, coding modulator 2, transmitter 3, satellite 4, ground satellite receiving antenna 5, ground transponder 6, user demodulator device 7 and source decoder 8.
[0058] (1) After the signal is sent to the source encoder 1, the source encoder 1 encodes the analog signal into a load digital signal of multiple channels.
[0059] Source coder 1 selects MPEG-4 AAC+ standard audio as audio source code, and adopts Audio Data Transport Stream (ADTS) to ensure the use of AAC+ bit stream under the MPEG-4 ...
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