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

Volume

46

Issue

3

fYear

2000

fDate

8/1/2000 12:00:00 AM

Firstpage

548

Lastpage

554

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;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.883409

Filename

883409