The Journal of Korea Institute of Information, Electronics, and Communication Technology (한국정보전자통신기술학회논문지)

Korea Information Electronic Communication Technology (한국정보전자통신기술학회)
권호 표지
DOI QR코드

DOI QR Code

Indoor and Outdoor Reception Performance Evaluation of Digital Radio Techniques in Field Trials

디지털라디오 방송의 실내외 수신 환경을 고려한 필드 테스트 성능 평가

  • Kim, Joo-Seok (Technology Commercialization Division, Electronics and Telecommunications Research Institute) ;
  • Baek, Myung-Sun (Media Research Division, Electronics and Telecommunications Research Institute) ;
  • Lee, Yong-Hoon (Technology Commercialization Division, Electronics and Telecommunications Research Institute) ;
  • Lee, Yong-Tae (Media Research Division, Electronics and Telecommunications Research Institute) ;
  • Kim, Kyung-Seok (College of Electrical & Computer Engineering, Chungbuk National University)
  • Received : 2018.02.12
  • Accepted : 2018.02.17
  • Published : 2018.02.28
Download PDF
⟨ Previous Next ⟩

Abstract

This paper provides field test results to confirm and compare the receiving characteristics of digital radio in various environments. HD Radio and DRM+ was used for the in-band method, while DAB/DAB+/T-DMB were used for the out-of-band method. To run field tests for digital radio, a transceiver test bed was constructed in a region in Korea selected as suitable for the testing, and indoor and outdoor reception tests were conducted by selecting 16 test points with different levels of multipath. Not only was the receivability tested at the test point, but ATT margin was also applied, in order to derive the minimum reception level. Through various analyses, the findings obtained through the field tests can aid in the setting of a standard for determining the method of digital radio transmission to ensure a smooth reception environment for consumers.

본 논문은 다양한 환경에서 디지털라디오의 방식별 수신 특징을 확인하고 비교할 수 있는 필드테스트 결과를 도출하였다. In-band 방식으로는 HD Radio와 DRM+를 고려하였으며, out-of-band 방식으로는 DAB/DAB+/T-DMB 방식을 고려하였다. 디지털 라디오의 필드테스트를 위하여 국내의 적합한 지역을 선정하여 송수신기 test bed를 구축하였고, multipath가 많고 적은 19개의 다양한 test point를 선정하여 실내외 수신테스트를 진행하였다. 또한 수신환경 측정 시 수신 가능 여부뿐만 아니라 ATT 마진을 적용하여 최소 수신가능 레벨도 도출하였다. 다양한 분석을 통한 필드 테스트 결과는 소비자들에게 원활한 수신환경을 보장하기 위한 디지털 라디오의 방식 결정의 기준이 될 수 있다.

Keywords

References

  1. Willcox, D.E.; Kim, J.; Loewen, C.; Wineman, J. "Implementation of Digital Radio Mondiale receiver-Part I", System Theory (SSST), 2010 42nd Southeastern Symposium on, pp.56-59, 7-9 March 2010.
  2. I. Fernandez et al., "Carrier and noise measurements in the medium wave band for urban indoor reception of digital radio," IEEE Trans. Broadcast., vol. 58, no. 1, pp. 98-105, Mar. 2012. https://doi.org/10.1109/TBC.2011.2165742
  3. M.-S. Back, S. Park, G. Kim, Y.-H. Lee, H.-S. Lim, Y.-J. Song, C.-H. Im, and Y.-T. Lee, "Laboratory Trials and Evaluations of In-Band Digital Radio Technologies: HD Radio and DRM+," IEEE Trans. Broadcasting, vol. 59, no. 1, pp. 1-12, March 2013. https://doi.org/10.1109/TBC.2012.2220232
  4. J.-S. Kim, M.-S. Baek, Y.-T. Lee, and K.-S. Kim, "The Optimal Placement of Radio Stations in Coexisting DRM+ and Analog FM Systems," IEEE Trans. Consum. Electron., Vol. 59, no. 4, pp. 738-746, Nov. 2013. https://doi.org/10.1109/TCE.2013.6689684
  5. Raguram et al., "USAC: A Universal Framework for Random Sample Consensus," IEEE Trans. Pattern Analysis and Machine Intelligence, Vol. 35, No. 8, pp. 2022-2038, Aug. 2013. https://doi.org/10.1109/TPAMI.2012.257
  6. M.-S. Baek, B. Lee, K. Yang, S. Beack, M. Lee, G. Shin, K.-W. Kwon, and H. Lim, "Design and Performance Evaluation of Advanced Digital Audio Broadcasting System," 2015 7th International Confer. MulGraB, pp. 9-12, 2015.
  7. M.-S. Baek, S. Park, G. Kim, Y.-H. Lee, H. Lim, Y.-J. Song, C.-H. Im, and Y.-T. Lee, "Design and Performance Evaluation of Digital Radio Measurement Test Beds for Laboratory Test: DAB, DAB+, and T-DMB Audio," IEEE Trans. Instrum. Meas., Vol. 62, No. 2, pp. 451-459, Feb. 2013. https://doi.org/10.1109/TIM.2012.2212602
  8. iBiquity Digital, "HD Radio TM air interface design description series," August 2007.