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- W2386691994 abstract "Synthetic aperture sonar(SAS)performance is limited by the precision with which the motion errors of the platform can be estimated.The terminology of micronavigation is used to describe this very specific requirement for sub-wavelength short-term relative positioning.The most promising motion compensation technique based on the raw data of a SAS system is that based on the concept of displaced phase center array(DPCA),which forms the basis of correlation sonar.The basic idea of DPCA is to cancel the along-track displacement of the sonar between two successive pings by synthesis of an effective displacement,in the opposite direction,of a subset of receiving elements.The residual motion error will accumulate because estimating process of DPCA auto-focus algorithm refers to the last location of the displaced phase center.If one of the correlated results seriously deviates from the reality,the performance of DPCA auto-focus algorithm will deteriorate severely.The aim of this work is to apply Kalman filter to DPCA auto-focus algorithm,improving the estimating precision of SAS motion error." @default.
- W2386691994 created "2016-06-24" @default.
- W2386691994 creator A5029175864 @default.
- W2386691994 date "2010-01-01" @default.
- W2386691994 modified "2023-09-23" @default.
- W2386691994 title "Estimation of motion error in synthetic aperture sonar based on DPCA and Kalman filter" @default.
- W2386691994 hasPublicationYear "2010" @default.
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