Digital broadcasting system and method

Details Digital broadcasting system and method Digital broadcasting system and method

H - Electricity

04

N

H04N 7/015 (2006.01)

Patent

CA 2625160

A digital broadcasting system and method, where the digital broadcasting system includes: a transmission stream generator multiplexing a normal stream and a turbo stream to generate a dual transmission stream; a transmitter inserting an supplementary reference signal (SRS) into the dual transmission stream, processing the turbo stream to reconstitute the dual transmission stream, and outputting the reconstituted dual transmission stream; and a receiver receiving the reconstituted dual transmission stream, separately turbo decoding the turbo stream, inserting the turbo decode turbo stream into the dual transmission stream, and decoding the dual transmission stream into which the turbo decoded turbo stream has been inserted, to restore normal stream data and turbo stream data. Thus, reception sensitivity of a digital broadcasting signal can be efficiently improved.

L'invention porte sur un procédé et sur un système de diffusion numérique, le système de diffusion numérique comprenant: un générateur de flux de transmission multiplexant un flux normal et un flux turbo pour générer un double flux de transmission; un émetteur insérant un signal de référence supplémentaire (SRS) dans le double flux de transmission, traitant le flux turbo pour reconstituer le double flux de transmission et générant le double flux de transmission reconstitué; et un récepteur recevant le double flux de transmission reconstitué, effectuant un décodage turbo séparé du flux turbo, insérant le flux turbo à décodage turbo dans le double flux de transmission et décodant le double flux de transmission dans lequel a été inséré le flux turbo à décodage turbo afin de restaurer les données du flux normal et du flux turbo. On peut ainsi améliorer efficacement la sensibilité de réception d'un signal de diffusion numérique.

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