The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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The Occupied Bandwidth Measurement Technique for ATSC DTV Signal at Monitoring Station

감시국에 적용 가능한 ATSC DTV 신호의 점유 대역폭 측정 기법

  • Hwang Tae-Wook (Department of Radio Communication Engineering, KyungHee University) ;
  • Kim Young-Soo (Department of Radio Communication Engineering, KyungHee University) ;
  • Kim Seong-Il (Department of Electronic and Electric Engineering, KyungWon University)
  • 황태욱 (경희대학교 전파통신공학과) ;
  • 김영수 (경희대학교 전파통신공학과) ;
  • 김성일 (경원대학교 전자전기공학부)
  • Published : 2005.03.01
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Abstract

In this paper, we propose the occupied bandwidth(OBW) measurement method for effectively measuring the 99 $\%$ OBW at monitoring station. In order to validate the measurement results obtained from the proposed measurement method, the modified adjacent channel power ratio(MACPR) is herein defined as the formula which was suitable for applying to the OBW measurement of 8-VSB DTV signals. It has been found that the MACPR is a good measurement parameter applicable for the proper site selection of monitoring station and the effective OBW measurement of 8-VSB DTV signals should be made for MACPR$\geq$35 dB with 600 measurement trials. The proposed measurement procedure is herein given and proven to effectively be applicable to the OBW measurement of terrestrial 8-VSB DTV signals on the air.

본 논문은 감시국에서 99 $\%$ 점유 대역폭 측정을 효율적으로 측정 하기 위한 점유 대역폭 측정 방법을 제안한다. 제안된 측정법을 통해 얻어진 측정 결과의 타당성을 확인하기 위해 ATSC DTV 신호에 적용할 수 있는 MACPR을 정의하였다. MACPR은 감시국의 측정 지역을 선정하는데 적합한 측정 파라미터이다. 본 논문의 측정 결과, MACPR$\geq$35 dB 되는 지역 에서 600번 이상을 반복 측정 한다면, ATSC DTV 신호의 효율적인 점유 대역폭 측정이 가능하다는 결론을 얻었다. 본 논문은 제안된 측정 절차를 보여주고, 실제 필드 환경에서 제안한 효율적인 점유 대역폭 측정 방법을 적용하고 증명하였다.

Keywords

References

  1. ITU-R, ITU-R Recommendation Spectrum Management SM433 : Methods for the Measurement of Radio Interference and the Determination of Tolerable Levels of Interference, ITU-R, Jun. 2001
  2. ITU-R, ITU-R Recommendation Spectrum Management SM443 : Bandwidth Measurement at Monitoring Stations, ITU-R, Jun. 2003
  3. ITU-R, ITU-R Draft Recommendation SM433: Radio Emission Bandwidth Measurement, Jul. 2003
  4. ITU-R, ITU-R Handbook Spectrum Monitoring Edition 2002, ITU-R, pp. 257-274, 2002
  5. Carl Eilers, Gary Sgrignoli, 'Digital television transmission parameters analysis and discussion', IEEE Transactions on Broadcasting, vol. 45, no. 4, pp. 365-385, Dec. 1999 https://doi.org/10.1109/11.825532
  6. Linley Gumm, 'Measurement of 8-VSB DTV transmitter emissions', IEEE Transactions on Broadcasting, vol. 45, no. 2, pp. 234-242, Jun. 1999 https://doi.org/10.1109/11.796265
  7. Rohde & Schwarz, Rohde & Schwarz Application Note : Swept Acfjacent Channel Power Analysis on Digital TV Amplifiers, 2001
  8. Tektronix, Tektronix Application Note : 8 VSB Measurements Using the RFA300A, 2001
  9. 정상윤, 김영식, 한대희, 통계학의 이해와 활용, 형설출판사, 2002년
  10. 김종호, 조진호, 이형수, 박재홍, '대전지역의 지상파 DTV 현장 측정 및 결과 분석', 한국전자파학회논문지, 11(5), pp. 830-838, 2000년