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

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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A Study on Performance Improvement of Target Motion Analysis using Target Elevation Tracking and Fusion in Conformal Array Sonar

컨포멀 소나에서의 표적고각 추적 및 융합을 이용한 표적기동분석 성능향상 연구

  • Lee, HaeHo (Maritime Sonar & Naval Combat System R&D, LIG Nex1) ;
  • Park, GyuTae (Maritime Sonar & Naval Combat System R&D, LIG Nex1) ;
  • Shin, KeeCheol (Maritime Sonar & Naval Combat System R&D, LIG Nex1) ;
  • Cho, SungIl (Maritime Sonar & Naval Combat System R&D, LIG Nex1)
  • 이해호 (LIG넥스원(주) 해양1연구소) ;
  • 박규태 (LIG넥스원(주) 해양1연구소) ;
  • 신기철 (LIG넥스원(주) 해양1연구소) ;
  • 조성일 (LIG넥스원(주) 해양1연구소)
  • Received : 2018.12.19
  • Accepted : 2019.05.24
  • Published : 2019.06.05
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Abstract

In this paper, we propose a method of TMA(Target Motion Analysis) performance improvement using target elevation tracking and fusion in conformal array sonar. One of the most important characteristics of conformal array sonar is to detect a target elevation by a vertical beam. It is possible to get a target range to maximize advantages of the proposed TMA technology using this characteristic. And the proposed techniques include target tracking, target fusion, calculation of target range by multipath as well as TMA. A simulation study demonstrates the outstanding performance of proposed techniques.

Keywords

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Fig. 1. The development trends of conformal array sonar[10,11]

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Fig. 2. The functional diagram of data processing in conformal array sonar

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Fig. 3. The diagram of target elevation fusion

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Fig. 4. The geometric relationship between submarine and target

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Fig. 5. The operation of cylindrical array sonar

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Fig. 6. The operation of conformal array sonar

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Fig. 7. The 1st scenario

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Fig. 8. The true target bearing, elevation, range data

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Fig. 9. The RMSE results of target bearing tracking

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Fig. 10. The RMSE results of target elevation tracking and fusion

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Fig. 11. The RMSE results of target range by multipath

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Fig. 12. The RMSE results of TMA range

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Fig. 13. The RMSE results of TMA course

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Fig. 14. The RMSE results of TMA speed

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Fig. 15. The true target bearing, elevation, range data

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Fig. 16. The RMSE results of target bearing tracking

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Fig. 17. The RMSE results of target elevation fusion

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Fig. 18. The RMSE results of target range by multipath

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Fig. 19. The RMSE results of TMA bearing

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Fig. 20. The RMSE results of TMA range

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Fig. 21. The RMSE results of TMA course

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Fig. 22. The RMSE results of TMA speed

Table 1. The simulation condition of 1st scenario

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