Title :
Truncated metric for NTSC interference rejection in the ATSC-HDTV trellis decoder
Author :
Markman, Lvonete ; Kim, Jaehyeong ; Parthasarathy, Vasudevan
Author_Institution :
Corp. Res., Thomson Consumer Electron., Indianapolis, IN, USA
fDate :
8/1/2000 12:00:00 AM
Abstract :
In the United States Advanced Television Systems Committee (ATSC) standard for high definition television (HDTV), NTSC co-channel interference rejection may be performed by the comb filter, a filter with spectral nulls at or near the NTSC carriers, and only applied when NTSC interference is detected. This paper analyzes the influence of the comb filter in the trellis decoder performance and describes a family of metrics with better performance than the Euclidean metric when NTSC co-channel interference is detected
Keywords :
cochannel interference; comb filters; decoding; high definition television; interference suppression; television interference; television standards; trellis codes; ATSC standard; ATSC-HDTV trellis decoder; Advanced Television Systems Committee; Euclidean metric; NTSC carriers; NTSC cochannel interference detection; NTSC cochannel interference rejection; USA; United States; comb filter; high definition television; optimum metric complexity; spectral nulls; trellis decoder performance; truncated metric; Decoding; Encoding; Euclidean distance; Forward error correction; HDTV; Interchannel interference; Interleaved codes; Nonlinear filters; Reed-Solomon codes; TV interference;
Journal_Title :
Consumer Electronics, IEEE Transactions on
