DOI QR코드

DOI QR Code

Calibration of Hydrographic Survey Multibeam System Using Terrestrial Laser Scanning and TS Surveying

지상 레이저 스캐닝과 TS 측량을 이용한 멀티빔 시스템의 검·보정

  • Received : 2013.03.26
  • Accepted : 2013.05.15
  • Published : 2013.06.30

Abstract

In hydrographic survey, data surveyed with multibeam system includes various errors due to multiple factors. These are corrected by a calibration called patch test, and if existing method is used, the test needs to be conducted for about 8 times for precise system calibration. For more prompt and precise multibeam system calibration, the exact offset of a ship was determined using terrestrial laser scanning and TS surveying, which was used as the initial input for the patch test. In the result, the error of closure was 0.001 m or less for TS surveying and backsight error was 0.005 m or less for scanning. All the surveying data based on the same local coordinate was converted into vessel reference coordinate during which R-square for all rotation angles was 0.99 or higher and standard deviation was 0.008 m or less. Finally, in a patch test using calculated offset of sensors and motion sensor offset, the offset of MBES transducer satisfied manual on hydrography only with 1-time calibration. With these results, it is thought that terrestrial laser scanning and TS surveying can fully be utilized for multibeam system calibration.

References

  1. Choi, C., Kim, Y., and Seo, Y. (2005), Improvement of Multi-beam Echo Sounder's Depth Accuracy, Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, Vol. 23, No. 1, pp. 1-8. (in Korean with English abstract)
  2. Caris (2009), HIPS and SIPS 7.0 User's Guide. http://www.caris.com/products/hips-sips/ (last date accessed:5 January 2013).
  3. Godin, A. (1998), The calibration of shallow water multibeam echo-sounding systems, M.S. Thesis, Dept. Geomatics Eng., Univ. New Brunswick, Fredericton, NB, Canada.
  4. IHO (1998), IHO Standards for Hydrographic Surveys, Special Publication No. 44, 4th Edition, International Hydrographic Bureau, Monaco.
  5. IHO (2005), Manual on Hydrography, Publication No. M-13, 1st Edition, International Hydrographic Organization, Monaco. http://www.iho.shom.fr
  6. Kang, M., Choi, Y., Jang, M., Yoon, H. (2010), A Study on MBES Error Data Removing Using Motion Sensor, Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, Vol. 28, No. 1, pp. 39-46. (in Korean with English abstract)
  7. Nardez, N.N., Krueger, C.P., Vargas, S.L. (2011), Methodology to Obtain the Offsets between Sensors of Hydrographic Ships, Journal of Coastal Research, Special Issue 64, pp. 1712-1217.
  8. Park, J., Kim, J., Roh, J., Seo, G. (2007), Design factors for 100% Swath Capability with Multi-Beam Echo Sounders, The Korean Society of Marine Engineering 2007 Conference, pp. 225-226.
  9. Roh, J., Choi, Y., Yoon, H., Lee, Y. (2009), Establishment Error Calibration Method on MBES, Journal of GIS Association of Korea, Vol. 17, No. 3, pp. 351-359. (in Korean with English abstract)
  10. Simrad (1992), SIMRAD EM1000, Hydrographic echo sounder: Product Description, Simrad Subsea A/S, Horten, Norway, #P2415E.
  11. Wheaton, G.E. (1988), Patch Test, a system check for multibeam survey system, Third Biennial U.S. Hydrographic Conference, Proceedings, April 12-15, Baltimore, MD, pp. 85-90.