Title :
Segment DPCA Motion Compensation for SAS
Author :
Zhu, Sanwen ; Tang, Jinsong ; Chen, Ming
Author_Institution :
Naval Univ. of Eng., Wuhan, China
Abstract :
The towfish motion error is analyzed in this paper first. It is shown that the motion error is range-variant in wide-swath SAS application. Displaced phase center algorithm (DPCA) used in synthetic aperture sonar (SAS) to estimate and compensate motion error is only suitable for compensation of range-invariant motion error, but the performance could be degraded in the case of range-variant motion error in wide-swath SAS application. A segment DPCA (SDPCA) to correct range dependent motion error is presented. Raw data of lake trial are used to verify the SDPCA algorithm.
Keywords :
error compensation; image segmentation; motion compensation; motion estimation; radar imaging; synthetic aperture sonar; displaced phase center algorithm; motion compensation; motion estimation; segment DPCA; synthetic aperture sonar; towfish motion error; Azimuth; Error analysis; Error correction; Motion analysis; Motion compensation; Motion estimation; Phase estimation; Signal resolution; Synthetic aperture radar; Synthetic aperture sonar;
Conference_Titel :
Image and Signal Processing, 2009. CISP '09. 2nd International Congress on
Conference_Location :
Tianjin
Print_ISBN :
978-1-4244-4129-7
Electronic_ISBN :
978-1-4244-4131-0
DOI :
10.1109/CISP.2009.5304520
