DocumentCode :
3047681
Title :
Hybrid SAR-ISAR imaging of ships
Author :
Ward, Keith ; Tough, R.J.A. ; Haywood, Brett
Author_Institution :
R. Signals & Radar Establ., Malvern, UK
fYear :
1990
fDate :
7-10 May 1990
Firstpage :
64
Lastpage :
69
Abstract :
A radar imaging theory for synthetic aperture radar (SAR), inverse SAR (ISAR), and hybrid SAR-ISAR is developed from the Fourier transform of k space samples. The rotations due to the radar and the object are combined in the hybrid SAR-ISAR case, and a small angle approximation is derived. The analysis presented is limited to small angles of rotation and constant angular velocities; however, extensions to this have been derived and are briefly discussed. Of particular interest are the expected image orientation and the effect of inaccurate knowledge of motion parameters on image quality. Both of these are considered in theory and then demonstrated in simulations based on multisource models of ship radar cross section
Keywords :
picture processing; radar cross-sections; radar theory; Fourier transform; hybrid SAR-ISAR; image quality; inverse synthetic aperture radar; motion parameters; multisource models; radar imaging theory; ship radar cross section; small angle approximation; synthetic aperture radar; Chirp modulation; Doppler radar; Marine vehicles; Pulse modulation; Radar antennas; Radar imaging; Radar polarimetry; Radar tracking; Spatial resolution; Synthetic aperture radar;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Radar Conference, 1990., Record of the IEEE 1990 International
Conference_Location :
Arlington, VA
Type :
conf
DOI :
10.1109/RADAR.1990.201138
Filename :
201138
Link To Document :
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