Source coding, channel coding and modulation techniques used in theATVA-progressive system |
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| Authors: | Krauss J.A. |
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| Affiliation: | Telecommun. & Technol. Policy, Rockville, MD ; |
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| Abstract: | The ATVA-progressive system, an all-digital high-definition television system that delivers very high quality pictures to the home within a 6-MHz channel in the presence of noise, ghosts, and frequency distortion is described. The system achieves a high degree of data compression by means of motion compensation and transform/subband coding, and only transform/subband coefficients with significant energy are transmitted. For terrestrial transmission, an all-digital format that uses a single carrier with double sideband suppressed carrier quadrature modulation is used. The source signal, source coding, channel coding, modulation, and performance of the system are discussed |
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