Noise-Related Radiometric Correction in the TerraSAR-X Multimode SAR Processor
Balss, Ulrich and Breit, Helko and Fritz, Thomas (2009) Noise-Related Radiometric Correction in the TerraSAR-X Multimode SAR Processor. IEEE Transactions on Geoscience and Remote Sensing, 48 (2), pp. 741-750. DOI: 10.1109/TGRS.2009.2035443.
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Synthetic aperture radar (SAR) image intensity is disturbed by additive system noise. During SAR focusing, pattern corrections that are adapted to the characteristics of the wanted signal, but not to the characteristics of the noise, influence the spatial distribution of the noise power. Particularly in the case of ScanSAR, a distinct residual noise pattern in low backscatter areas results. This necessitates a noise-adapted radiometric correction of the focused image for almost all applications except interferometry. In this paper, we thoroughly investigate this topic. Based on signal theoretical and stochastic considerations, we develop a radiometric correction scheme. Simulations and the application of the algorithm to TerraSAR-X datatakes support the theoretical results.
|Title:||Noise-Related Radiometric Correction in the TerraSAR-X Multimode SAR Processor|
|Date:||21 October 2009|
|Journal or Publication Title:||IEEE Transactions on Geoscience and Remote Sensing|
|In Open Access:||No|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 741-750|
|Keywords:||noise, radiometry, synthetic aperture radar (SAR)|
|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 - Projekt TerraSAR-X Nutzlastbodensegment (old)|
|Institutes and Institutions:||Remote Sensing Technology Institute > SAR Signal Processing|
|Deposited By:||Dr. Ulrich Balss|
|Deposited On:||18 Nov 2009 14:17|
|Last Modified:||07 Feb 2013 20:22|
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