Title:
METHOD AND APPARATUS FOR COMBATING CO-CHANNEL NTSC INTERFERENCE FOR DIGITAL TV TRANSMISSION
Document Type and Number:
WIPO Patent Application WO1995022864
Kind Code:
A3
Abstract:
A rejection filter for use at an ATV receiver which is designed to process co-channel interference so as to produce at the filter output of the filter, a residual interference spectrum which is as flat as possible. The filter exploits the fact that only the picture and the sound carriers need to be sufficiently attenuated and cancels NTSC co-channel interference with only a small degradation in performance when AWGN is also present.
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Inventors:
HULYALKAR SAMIR
Application Number:
PCT/IB1995/000069
Publication Date:
September 14, 1995
Filing Date:
February 01, 1995
Export Citation:
Assignee:
PHILIPS ELECTRONICS NV (NL)
PHILIPS NORDEN AB (NL)
PHILIPS NORDEN AB (NL)
International Classes:
H04N5/21; H04N5/44; (IPC1-7): H04N/
Foreign References:
| US5291291A | 1994-03-01 | |||
| US5151785A | 1992-09-29 |
Other References:
IEEE Journal on Selected Areas in Communications, Volume 11, No. 1, January 1993, LEE-FANG WEI, "Precoding Technique for Partial-Response Channels with Applications to HDTV Transmission", page 127, column 1, line 1 - line 14; page 128, column 2, line 25 - line 32, figure 1, pages 127-135.
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