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

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on Receiving Beam Pointing Error and MTI(Moving Target Indication) Performance in a Bistatic Radar Using Pulse Chasing

펄스 체이싱을 이용한 바이스태틱 레이더에서 수신 빔 조향 오차와 MTI(Moving Target Indication) 성능에 대한 연구

  • Published : 2010.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

A bistatic radar using the pulse chasing can detect a target to track successive transmitted pulses using a receive beam for effectively scanning the cosite search area. When tracking a transmitted pulse with the receive beam, some beam pointing errors within pulse-to-pulse can cause the timing error in received pulse and the variation of the signal strength. In this paper, we have proposed that some errors due to the receive beam pointing error could limit the MTI filter's performance and derived that the relationship between the MTI performance and the geometric factors which are the inherent properties in bistatic configuration. Through the simulation, we have considered the limitations of the improvement performance restricted by the receiving beam pointing error and confirmed the contribution to the performance improvement in maintaining the receiving beam pointing error of under 0.5 degrees.

펄스 체이싱을 이용한 바이스태틱 레이더는 탐지 영역을 효과적으로 스캔하기 위해 수신 빔을 이용하여 송신 펄스를 추적함으로써 표적을 탐지한다. 수신 빔을 이용한 펄스 추적시 펄스-펄스간 빔 포인팅 오차에 의해 수신 펄스의 타이밍 오차와 신호 세기의 변화가 발생할 수 있다. 본 논문에서는 수신 빔 포인팅 오차에 의해 발생된 에러가 MTI 필터의 성능을 제한할 수 있음을 제안하였고, 바이스태틱 구조만의 고유한 특성인 기하학적 요소와 MTI 성능의 관계식을 유도하였다. 시뮬레이션을 통해 수신 빔 조향 오차에 의한 개선 성능 제한을 고찰하였고, 수신 빔의 조향 오차를 0.5도 이하로 유지함으로써 성능 개선에 기여할 수 있음을 확인하였다.

Keywords

References

  1. A. Damini, "X-band wideband experimental airborne radar for SAR, GMTI and maritime surveillance", IEE Proceedings - Radar, Sonar and Navigation, vol. 150, no. 4, pp. 305-312, Aug. 2003. https://doi.org/10.1049/ip-rsn:20030654
  2. P. K. Lee, D. C. Lorti, "Space-based bistatic radar: Opportunity for future tactical air surveillance", IEEE Int. Radar Conf., Washington D.C., pp. 322- 329, 1985.
  3. Terje Johnsen, "Time and frequency synchronization in multistatic radar. Consequences to usage of GPS disciplined references with and without GPS signals", Radar Conference, Proceedings of the IEEE, 22-25, pp. 141-147, Apr. 2002. https://doi.org/10.1109/NRC.2002.999711
  4. C. K. Bovey, C. P. Home, "Synchronization aspects for bistatic radars", IEE International Conference RADAR-87, Oct. 1987.
  5. Nicholas J. Willis, Bistatic Radar, Scitech Publishing Inc., 2nd Ed., 2005.
  6. M. C. Jackson, "The geometry of bistatic radar systems", IEE Proc., 133(7), Pt. F, pp. 604-612, Dec. 1986. https://doi.org/10.1049/ip-f-1:19860097
  7. F. E. Nathanson, Radar Design Principles, Chapter 9. Moving Target Indicators(MTI), McGraw-Hill, 2nd Ed., 1991.
  8. M. I. Skolnik, Radar Handbook, Chapter 2. MTI Radar, McGraw-Hill, 3rd Ed., 2008.
  9. D. K. Barton, Radar System Analysis, Chapter 7. MTI Techniques in Search Radar, Artech House, 1989.
  10. L. E. Brennan, "Angular accuracy of a phased array radar", IRE Transcation on Antennas and Propagation, vol. 9, no. 3, pp. 268-275, May 1961. https://doi.org/10.1109/TAP.1961.1145000
  11. Keith R. Carver, et al., "Beam-pointing errors of planar-phased arrays", IEEE Trans. on Antennas and Propagation, vol. 21, no. 2, pp. 199-202, Mar. 1973. https://doi.org/10.1109/TAP.1973.1140434
  12. http://www.analog.com: Digital Down Conversion.
  13. Eyung W. Kang, Radar System Analysis, Design, and Simulation, Chapter 11. Moving Target Indicator, Artech House, 2008.
  14. V. Manassewitsch, Frequency Synthesizers Theory and Design, 3nd Ed., John Wiley and Sons, 1987.