Co-channel interference cancellation for HDTV receivers
نویسنده
چکیده
A new method of co-channel interference rejection for digital television receivers is presented that uses a di erent rejection lter from the comb lter that was used in the prototype built by Zenith. This lter is optimized for rejection of co-channel NTSC interference in the presence of white noise and hence su ers a penalty of only 0.4 dB in AWGN as compared to 3.5 dB with the comb. The receiver structure with this lter, including required equalizer and trellis decoder modi cations is presented, along with simulation results showing the improvement in performance in co-channel-plus-AWGN interference and hence in coverage area.
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تاریخ انتشار 1999