Journal of Advanced Navigation Technology (한국항행학회논문지)

The Korean Navigation Institute (한국항행학회)
권호 표지
DOI QR코드

DOI QR Code

Analysis of the Directional Group Delay of the Antenna for the Radio Navigation System

전파 항법시스템을 위한 안테나 방향별 군지연 분석

  • Received : 2019.08.19
  • Accepted : 2019.10.27
  • Published : 2019.10.31
Download PDF
⟨ Previous Next ⟩

Abstract

This paper presents analysis results for the effect of the directional group delay of the antenna to implement a precision radio navigation system. The analysis was conducted through antenna simulation and test, and the test was performed in an anechoic chamber. The directional group delay of the antenna was calculated in phase-based analysis method. The results showed that a variation of up to 7.7ns in group delay occurred per antenna direction. The group delay variation from the analysis is 2.31 meters when converted into distance. It was tested using a real radio navigation system based on the time of arrival (TOA). The test verified the distance variation of 2.1 meters, and this value is similar to those obtained from the simulation and chamber test analysis.

본 논문은 정밀한 전파항법시스템 구현을 위해 안테나의 방향별 군지연 차이가 시스템에 미치는 영향을 분석하였다. 분석은 안테나 시뮬레이션과 시험을 통해서 수행 하였고, 시험은 무반향 챔버에서 진행 하였다. 안테나의 방향별 군지연은 위상(phase)을 기반으로 분석 하였으며, 측정 분석 결과 안테나의 방향별로 최대 약 7.7 ns까지 군지연 차이가 발생했다. 분석된 군지연 차이를 거리로 환산하면 약 2.31 m이며, 이를 실제 TOA (time of arrival)기반의 전파항법시스템에서 시험 하였다. 시험 결과 2.1 m의 거리 변화를 확인 하였으며, 이는 시뮬레이션과 챔버 시험 분석 값과 유사한 수치이다.

Keywords

References

  1. C. D. Kee, “The modernization of GPS the future of GNSS,” The Journal of the Institute of Control, Automation and System Engineer, Vol. 9, No. 2, pp. 32-35, Mach. 2003.
  2. H. G. Lee, “GNSS receiver network development trends,” Institute of Control, Robotics and System, Vol. 12, No. 1, pp. 47-51, Mach. 2006.
  3. Y. S. Yun, J. H. Cho, M. B. Heo, and G. W. Nam, "System design consideration for multipurpose SBAS development," Institute of Control, Robotics and Systems, 1(1), pp. 489-499, 2011.
  4. S. J. Lee, J. W. Chang, B. H. Jeon, K. J. Seong, and C. H. Yeom, “Comparison study on take-off and landing flight test using ground observation and DGPS method,” Journal of the Korean Society for Aeronautical & Space Sciences, Vol. 37, No. 9, pp. 931-938, Sep. 2009 https://doi.org/10.5139/JKSAS.2009.37.9.931
  5. Y. J. Cho, K. H. Kim, D. H. Choi, S. S. Lee, and S. O. Park, “A miniature UWB monopole antenna with 5-GHz band- rejection filter and the time-domain characteristics,” IEEE Transactions on Antenna and Propagation, Vol. 54, No. 5, pp. 1453-1460, May. 2006. https://doi.org/10.1109/TAP.2006.874354
  6. S. J. Jang, J. H. Hwang, N. H. Choi, and J. M. Kim, “Location error reduction method using iterative calculation in UWB system,” The Institute of Electronic Engineers of Korea - Telecommunication, Vol. 45, No. 12, pp. 105-113, Dec. 2008.
  7. F. van Graas, C. Bartone and T. Arthur, "GPS antenna phase and group delay corrections," in Institute of Navigation National Technical Meeting, San Diego: CA, pp. 399-408, Jan. 2004.
  8. T. Murphy, P. Geren, and T. Pankaskie, "GPS antenna group delay variation induced errors in a GNSS based precision approach and landing system," in Institute of Navigation International Technical Meeting of the Satellite Division, Forth Worth: TX, pp. 2974-2989, Sep. 2007.
  9. U. S. Kim, "Analysis of carrier phase and group delay biases introduced by CRPA hardware," in International Technical Meeting of the Satellite Division, Long Beach: CA, pp. 635-642, Sep. 2005.
  10. H. W. Noh, J. H. Park, I. H. Kang, M. G. Choi, and K. W. Kim, “The phase difference measurement module development for amplitude modulated range measurement System,” The Journal of Korean Institute of Electromagnetic Engineering and Science, Vol. 22, No. 2, pp. 182-190, Feb. 2011. https://doi.org/10.5515/KJKIEES.2011.22.2.182