Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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Method for Robust Ground Ranging Using Monopulse Radar in Heterogeneous Clutter Environment

모노펄스 레이다를 이용한 비균질 클러터 환경에서의 강건한 지면거리측정 방법

  • Son, Jegyung (Radar & EW Technology Center, Agency for Defense Development)
  • 손제경 (국방과학연구소 레이다/전자전기술센터)
  • Received : 2021.07.05
  • Accepted : 2021.09.30
  • Published : 2021.12.05
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Abstract

Aircraft radar has special function which is ranging from aircraft to ground of antenna boresight. Because ranging information is used to calibrate altitude of aircraft or to drop a conventional bomb, the measuring have to be precise and robust. Therefore, we propose a simple and efficient method using monopulse radar for ground ranging. Proposed method calculates balancing weight according to linearity of monopulse ratio and mixes two ranging measurements in proportional to the weight. By exploiting balancing weight, radar is able to react to various environment as monopulse ratio contains characteristics of clutter environment. As a result, robust ranging information can be achieved. We use DEM(Digital Elevation Model) in order to simulate heterogeneous environment. In experimental result, it is shown that proposed method shows better accuracy and precision in any environment.

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References

  1. McGillem. C. D., "Monopulse Radar Air-ti-Ground Ranging," IEEE Transactions on Aerospace and Electronic Systems, Vol. 3, pp. 303-315, 1966. https://doi.org/10.1109/TAES.1966.4501766
  2. Sherman, Samuel M. and Daivd K. Barton., "Monopulse Principles and Techniques," Artech House, 2011.
  3. Mahafza, Bassem R., "Radar Systems Analysis and Design Using MATLAB Third Edition," CRC Press, 2013.
  4. Zwagerman, P. K., "Air-to-Ground Ranging Using Electronic Roll Stabilization of Monopulse Data," Proceedings of the 1988 IEEE National Radar Conference, pp. 151-156, 1988.
  5. Tachikawa, Tetushi, et al., "ASTER Global Digital Elevation Model Version 2-Summary of Validation Results," NASA, Washington D.C., USA, 2011.
  6. Gregers-Hansen, Vilhelm, and Rashmi Mital, "An Improved Empirical Model for Radar Sea Clutter Reflectivity," IEEE Transactions on Aerospace and Electronic Systems, Vol. 48, No. 4, pp. 3512-3524, 2012. https://doi.org/10.1109/TAES.2012.6324732
  7. KALMAN, Barry L., KWASNY, Stan C., "Why Tanh: Choosing a Sigmoidal Function," Proceedings of the IEEE IJCNN International Joint Conference on Neural Networks, Vol. 4, pp. 578-581, 1992.
  8. Barton, David K., "Land Clutter Models for Radar Design and Analysis," Proceedings of the IEEE Vol. 73, No. 2, pp. 198-204, 1985. https://doi.org/10.1109/PROC.1985.13133
  9. Nathanson, Fred E., "Radar Design Principles," Signal Processing and the Environment, 1990.