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Assessment of Processing Methods for Stepped Frequency Airborne SAR
Barbosa, Felipe and Scheiber, Rolf (2006) Assessment of Processing Methods for Stepped Frequency Airborne SAR. Diploma. DLR-Interner Bericht. DLR-HR-IB-551-1/2006, 91 S.
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Abstract
Recently, the E-SAR system of DLR has been upgraded to stepped-frequency mode in X-band to improve the range resolution of SAR images. Initially the resolution was limited by the maximum chirp bandwidth/sampling frequency of 100MHz. The stepped frequency operation mode of the ESAR system uses two different frequency steps and leads to an improvement of up to 80% in the range resolution. The hardware-upgrade was limited to RF-front end modifications, thus keeping data acquisition hardware and system control software more or less unchanged. However, for the case of the E-SAR system, the processing of stepped frequency data is new. The demand was for additional software modules for processing stepped-frequency waveforms. The outcome of this thesis is a prototype processor to be used by DLR to process stepped-frequency data acquired by its SAR systems.
| Document Type: | Monograph (DLR-Interner Bericht, Diploma) | ||||||
|---|---|---|---|---|---|---|---|
| Title: | Assessment of Processing Methods for Stepped Frequency Airborne SAR | ||||||
| Authors: |
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| Date: | 01 September 2006 | ||||||
| Refereed publication: | No | ||||||
| In SCOPUS: | No | ||||||
| In ISI Web of Science: | No | ||||||
| Number of Pages: | 91 | ||||||
| Status: | Published | ||||||
| Keywords: | synthetic aperture radar, high resolution, step frequency | ||||||
| Institution: | ITA, Sao Jose dos Campos, Brasilien | ||||||
| Department: | Elektrotechnik | ||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||
| HGF - Program: | Space | ||||||
| HGF - Program Themes: | W EO - Erdbeobachtung | ||||||
| DLR - Research area: | Space | ||||||
| DLR - Program: | W EO - Erdbeobachtung | ||||||
| DLR - Research theme (Project): | W - Vorhaben Flugzeug-SAR (old) | ||||||
| Location: | Oberpfaffenhofen | ||||||
| Institutes and Institutions: | Microwaves and Radar Institute Microwaves and Radar Institute > SAR Technology | ||||||
| Deposited By: | Dr.-Ing. Rolf Scheiber | ||||||
| Deposited On: | 31 Jul 2007 | ||||||
| Last Modified: | 15 Jan 2010 00:51 |
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