Channel Equalizer for Long-Delay Multipath beyond the Guard Interval in DTTB

DOI Web Site 11 Citations 4 References

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Other Title
  • 地上デジタル放送用ガードインターバル越えマルチパス等化器(デジタル放送受信技術および一般)
  • 地上デジタル放送用ガードインターバル越えマルチパス等化器
  • チジョウ デジタル ホウソウヨウ ガードインターバル ゴエ マルチパス トウ カキ

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Description

This paper describes a channel equalizer that can equalize multipath longer than the guard interval of OFDM signal. In SFN(Single Frequency Network)service area of DTTB (Digital Terrestrial Television Broadcasting), desired wave and artificial multipath waves arrive at the receiver. If the difference of arrival times between these waves were outside the guard interval, long-delay multipath waves cause remarkable degradation of receiving performance. To suppress the degradation, a channel has been developed and the performance was verified in laboratory measurements. This equalizer can reduce the influence of multipath outside the guard interval to that of the multipath within the guard interval.

Journal

  • ITE Technical Report

    ITE Technical Report 26.53 (0), 9-12, 2002

    The Institute of Image Information and Television Engineers

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