Popis: |
The authors describe the digital spectrum-compatible (DSC) HDTV (high-definition television) System, which includes a new modulation system, a new NTSC interference filter, and reduced radiated power compared to NTSC. The system is designed to operate in the existing TV bands at 100 miles minimum cochannel distance. The NTSC interference-limited service area is unchanged. A UHF example shows that the DSC-HDTV noise-limited and interference-limited service areas are equal to those of NTSC. > |