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Martone, Michele and Bräutigam, Benjamin and Krieger, Gerhard (2014) Azimuth-Switched Quantization for SAR Systems and Performance Analysis on TanDEM-X Data. IEEE Geoscience and Remote Sensing Letters, 11 (1), pp. 181-185. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/LGRS.2013.2251603. ISSN 1545-598X.
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Abstract
In synthetic aperture radar (SAR) applications, raw data quantization represents an aspect of primary importance, since the number of bits employed for radar signal digitization affects on the one hand the on-board memory consumption and the data volume to be transmitted to the ground, but also on the other hand the quality of the SAR images. In this paper, we introduce a novel azimuth-switched quantization (ASQ) technique, which allows the implementation of non-integer quantization rates in a new, efficient way. This grants higher flexibility in terms of performance design and resource allocation, without increasing the complexity and the computational load of the quantization scheme. The presented results were obtained in the frame of the TanDEM-X mission.
| Item URL in elib: | https://elib.dlr.de/80639/ | ||||||||||||||||
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| Document Type: | Article | ||||||||||||||||
| Additional Information: | ©2013 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. | ||||||||||||||||
| Title: | Azimuth-Switched Quantization for SAR Systems and Performance Analysis on TanDEM-X Data | ||||||||||||||||
| Authors: |
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| Date: | January 2014 | ||||||||||||||||
| Journal or Publication Title: | IEEE Geoscience and Remote Sensing Letters | ||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||
| Open Access: | Yes | ||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||||||
| Volume: | 11 | ||||||||||||||||
| DOI: | 10.1109/LGRS.2013.2251603 | ||||||||||||||||
| Page Range: | pp. 181-185 | ||||||||||||||||
| Publisher: | IEEE - Institute of Electrical and Electronics Engineers | ||||||||||||||||
| ISSN: | 1545-598X | ||||||||||||||||
| Status: | Published | ||||||||||||||||
| Keywords: | Synthetic Aperture Radar (SAR), SAR Interferometry (InSAR), TanDEM-X mission, Block Adaptive Quantization (BAQ), Azimuth-Switched Quantization (ASQ) | ||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||
| HGF - Program: | Space | ||||||||||||||||
| HGF - Program Themes: | Earth Observation | ||||||||||||||||
| DLR - Research area: | Raumfahrt | ||||||||||||||||
| DLR - Program: | R EO - Earth Observation | ||||||||||||||||
| DLR - Research theme (Project): | R - Projekt TanDEM-X (old) | ||||||||||||||||
| Location: | Oberpfaffenhofen | ||||||||||||||||
| Institutes and Institutions: | Microwaves and Radar Institute > Radar Concepts Microwaves and Radar Institute > Spaceborne SAR Systems | ||||||||||||||||
| Deposited By: | Martone, Michele | ||||||||||||||||
| Deposited On: | 14 Jan 2013 17:38 | ||||||||||||||||
| Last Modified: | 29 Nov 2023 13:43 |
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