Title :
Co-channel interference cancellation for HDTV receivers
Author_Institution :
Lucent Technol., AT&T Bell Labs., Murray Hill, NJ, USA
Abstract :
A new method of co-channel interference rejection for digital television receivers is presented that uses a different rejection filter from the comb filter that was used in the prototype built by Zenith. This filter is optimized for rejection of co-channel NTSC interference in the presence of white noise and hence suffers a penalty of only 0.4 dB in AWGN as compared to 3.5 dB with the comb. The receiver structure with this filter, including required equalizer and trellis decoder modifications is presented, along with simulation results showing the improvement in performance in co-channel-plus-AWGN interference and hence in coverage area
Keywords :
AWGN; cochannel interference; comb filters; decision feedback equalisers; digital television; high definition television; interference suppression; television interference; television receivers; trellis coded modulation; 8-VSB; AWGN; CCI rejection; HDTV receivers; NTSC interference rejection; co-channel interference cancellation; comb filter; coverage area; digital television receivers; equalizer; rejection filter; simulation results; trellis decoder; white noise; AWGN; Digital TV; Digital filters; Equalizers; HDTV; Interchannel interference; Interference cancellation; Prototypes; TV receivers; White noise;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1999. Proceedings., 1999 IEEE International Conference on
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-5041-3
DOI :
10.1109/ICASSP.1999.761248
