Synchronization scheme for DoA estimation of multi-path in digital terrestrial television broadcasting

Akira Nakamura, Sho Nabatame, Takamasa Kuge, Kohei Ohno, Hiroki Ohta, Makoto Itami

Research output: Contribution to journalArticle

Abstract

In this paper, DoA(direction of arrival) in a measurement system that estimates the conditions of propagation paths for digital terrestrial television broadcasting is used. The broadcasting signals are received by two different antennas that have different roles. One is used for receiving the reference signal to obtain the synchronization timing. The other antenna is rotated in a horizontal surface to estimate the DoA. By analyzing of the received datas, a phase compensation technique and delay profile synchronization technique are proposed. The delay profiles that are measured against each measurement angle are synchronized to the reference delay profile using the evaluation function and Newton method. The evaluation function is defined as the square error of reference and target delay profile. The directions of arrival of the paths are estimated from the synchronized delay profiles. It is possible to synchronize delay profiles using the proposed scheme.

Original languageEnglish
JournalKyokai Joho Imeji Zasshi/Journal of the Institute of Image Information and Television Engineers
Volume67
Issue number7
DOIs
Publication statusPublished - 5 Aug 2013

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Keywords

  • Delay profile
  • DoA estimation
  • DTTB
  • ISDB-T
  • Multi-path
  • OFDM

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