Latest developments of compatible MUSE systems-ADTV (advanced definition television)

Two different systems have been proposed to the FCC advisory committee for testing ATTC in 1990: NTSC-Compatible MUSE-6, and Narrow MUSE. The Narrow MUSE system is designed for simulcasting. The 7.5-Hz offset frequency multiplexing method for expanding the horizontal bandwidth of luminance signals used in the NTSC-Compatible MUSE-6 is described. The modulation schemes for solving interference issues associated with the introduction of the narrow MUSE system in the existing terrestrial environment are discussed.<
>