Title :
Autofocus techniques for reducing phase errors in UWB-SAR
Author :
Wang, Shunhua ; Huang, Xiaotao
Author_Institution :
Inst. of Electron. Eng., Nat. Univ. of Defense Technol., Hunan, China
Abstract :
In this paper, the categories of phase errors in UWB-SAR (Ultra-Wideband Synthetic Aperture Radar) are identified at first. Following that, the relationship between phase error magnitude and the level of image degradation is quantified in simplicity. At last, some autofocus techniques are described to reduce space-variant phase errors
Keywords :
radar imaging; self-focusing; synthetic aperture radar; UWB-SAR; image degradation; phase error magnitude; phase errors; phase gradient autofocus; space-variant phase errors; ultrawideband synthetic aperture radar; Computer errors; Degradation; Error analysis; Error compensation; Focusing; Image resolution; Layout; Phase estimation; Synthetic aperture radar; Ultra wideband technology;
Conference_Titel :
Aerospace and Electronics Conference, 1997. NAECON 1997., Proceedings of the IEEE 1997 National
Conference_Location :
Dayton, OH
Print_ISBN :
0-7803-3725-5
DOI :
10.1109/NAECON.1997.622768
