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A SAR Auto-Focus Technique Based on Azimuth Scaling.

Moreira, A. and Mittermayer, J. (Vortragender) and Scheiber, R. (1997) A SAR Auto-Focus Technique Based on Azimuth Scaling. In: Proc. IGARSS '97, 97CH36042, IV, pp. 2028-2030. IEEE, Piscataway, N.J./USA. IGARSS '97, Singapore, 03.08.-08.08.97, (Vortrag)..

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Abstract

The paper proposes a new approach for automatic estimation of the Doppler rate during the SAR image formation process. The technique is based on the scaling property in the azimuth direction applied to chirp signals. The measurement of the scaling error between two processed images with low resolution is used to estimate the effective sensor velocity. The proposed method shows superior performance when compared to traditional autofocus techniques.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1997, pages=3,
Title:A SAR Auto-Focus Technique Based on Azimuth Scaling.
Authors:
AuthorsInstitution or Email of Authors
Moreira, A.UNSPECIFIED
Mittermayer, J. (Vortragender)UNSPECIFIED
Scheiber, R.UNSPECIFIED
Date:1997
Journal or Publication Title:Proc. IGARSS '97, 97CH36042
Volume:IV
Page Range:pp. 2028-2030
Publisher:IEEE, Piscataway, N.J./USA
Status:Published
Keywords:SAR processing, Autofocus, Doppler rate, Azimuth Scaling
Event Title:IGARSS '97, Singapore, 03.08.-08.08.97, (Vortrag).
HGF - Research field:UNSPECIFIED
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:UNSPECIFIED
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Institut für Hochfrequenztechnik
Deposited By: elib DLR-Beauftragter
Deposited On:02 Apr 2006
Last Modified:27 Apr 2009 09:09

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