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ArcSAR 시스템 설계 및 제작

ArcSAR 시스템 설계 및 제작. 2009. 3. 27. 대한원격탐사학회 춘계학술발표회. 1) 조성준 , 2) 이훈열 , 1) 김광은 , 2)1) 이재희 , 1) 성낙훈 1) 한국지질자원연구원 2) 강원대학교 지구물리학과. Agenda. 연구배경 및 목적 Concept of ArcSAR Hardware configuration of ArcSAR Imaging geometry of ArcSAR Arc rail system 향후 추진 계획. 연구배경 및 목적.

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ArcSAR 시스템 설계 및 제작

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  1. ArcSAR시스템 설계 및 제작 2009. 3. 27. 대한원격탐사학회 춘계학술발표회 1)조성준, 2)이훈열, 1)김광은 , 2)1)이재희, 1)성낙훈 1)한국지질자원연구원 2)강원대학교 지구물리학과

  2. Agenda • 연구배경 및 목적 • Concept of ArcSAR • Hardware configuration of ArcSAR • Imaging geometry of ArcSAR • Arc rail system • 향후 추진 계획

  3. 연구배경 및 목적 • 레일형 GB-SAR는 반복측정을 통해 mm 이내의 변형까지 감지할 수 있는 높은 분해능을 자랑 • 레일을 모니터링 위치에 고정시켜야 하는데 고정밀 레일의 제작비용이 매우 비싸며, 측정장치의 운반과 설치 역시 매우 복잡 • 차량에 원형레일을 탑재하여 신속한 기동을 확보 • 합성구경의 길이를 늘리며 영상영역을 확장한 Arc-SAR 개발

  4. GB-SAR(KIGAM-KNU) • DInSAR tested: Phase stability of 1° (0.1mm range) was achieved for several hours for stable reflectors, rendering phase change of 10 ° to be assured (1mm accuracy). • PSInSAR displacement measurement: R2=0.9999 achieved. • GB-SAR can be used for various applications such as: • Safety monitoring of natural or anthropogenic structures • Microwave backscattering properties of target • New SAR system concept design

  5. System Configuration

  6. GB-SAR System(KIGAM-KNU)

  7. ArcSAR Concept AWS AWS

  8. GB-SAR vs ArcSAR

  9. ArcSAR Hardware configuration

  10. VNA(Vector Network Analyzer) • Stepped frequency • Both of Tx and Rx • Flexibility • 10 MHz – 20 GHz

  11. Antenna(C-band) H-Pol radiation pattern

  12. Antenna(X-band)

  13. Amp • Operating Freq.: 2~6 GHz • Power Gain: 34 dB • Maximum input: 6 dBm • Operating Freq.: 8~10.5 GHz • Output Power: 6 W

  14. Controller (PXI) and RF switch

  15. Acquisition software Start Callibration Initialize all system Move to start position Acquisition Call cal:VV:Switching: Call cal:VH:Switching: Call cal:HV:Switching: Call cal:HH:Switching Save data Move or Stop End

  16. Design of a arc-rail

  17. ArcSAR Standard Mode: 360˚ coverage with moderate resolution

  18. ArcSAR Spot Mode: Limited coverage with higher resolution

  19. Arc rail system

  20. Arc rail lift

  21. 향후 추진계획 • 현장 테스트(GB-SAR와 비교실험) • 위치보정 알고리듬 개발 • 모니터링 테스트

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