Motion compensation in stripmap SAS systems

• Autorzy: Szczegielniak M.
• Języki publikacji: EN

Abstrakty

EN

Synthetic Aperture Sonar (SAS) is the high-resolution acoustic imaging technique which allows to improve the along-track resolution. An effectiveness of modern SAS systems strongly depends on the compensation of motion errors caused by platform path deviations. Without applying a proper processing as small deviations as a fraction of wavelength causes a serious degradation of the reconstructed SAS image. A robust motion compensation still seems to be a challenge in such a difficult environment as the restless sea. Types of motion errors, their influence on SAS systems, motion compensation methods were shortly categorized here. A few possible ways of motion compensations with their derived mathematical models are presented in the paper as well as results of numerical simulations.

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 2011
• Tom: Vol. 14
• Strony: 217--228
• Opis fizyczny: Bibliogr. 8 poz., rys., tab.

Twórcy

autor

Szczegielniak M.

• University of Technology and Life Sciences 7, Kaliskiego St., 85-792 Bydgoszcz, Poland,

Bibliografia

• [1] Bonifant W., Interferometic Synthetic Aperture Sonar Processing, MSc thesis, Georgia Institute of Technology, 1999, 38–39.
• [2] Soumekh M., Synthetic Aperture Radar Signal Processing, John Wiley & Sons, USA, 1999, 226–230, 223–226.
• [3] Szczegielniak M., Przetwarzanie danych SAS przy pomocy algorytmu Omega-K, Otwarte Seminarium z Akustyki, Poznań – Wągrowiec 2005.
• [4] Hayes M. P., Gough P. T., Broad-Band Synthetic Aperture Sonar, IEEE Journal of Oceanic Engineering, Jan. 1992, 80–94.
• [5] Callow H. J., Signal Processing For Synthetic Aperture Sonar Image Enhancement, PhD thesis, 6, 79, 153, Electrical and Electronic Engineering at the University of Canterbury, New Zealand 2003.
• [6] Jakowatz C. V., Wahl D. E., Spotlight-Mode Synthetic Aperture Radar: A Signal Processing Approach, Springer 1996, p. 245.
• [7] Gough P. T., Miller M. A., Displaced Ping Imaging Autofocus For A Multi-Hydrophone SAS, IEE Proc.-Radar Sonar Navig., Vol. 151, No 3, June 2004.
• [8] Heremans R., Dupont Y., Acheroy M., Motion Compensation In High Resolution Synthetic Aperture Sonar (SAS) Images, Advances in Sonar Technology, Sergio Rui Silva (ed.), I-Tech Education and Publishing, 2009.