|START||NEW VOL 20||SEARCH||STATISTICS||PAS - GDANSK DIVISION|
pp. 217-228, vol. 14, 2011
University of Technology and Life Sciences, Bydgoszcz, Poland
Key words: synthetic aperture sonar; high-resolution acoustic imaging; motion compensation
Abstract: 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.
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© Polish Acoustical Society - Gdansk Department, Polish Academy of Sciences. This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported. (CC BY-NC-SA 3.0)