Title :
Sentinel-1 FDBAQ performance validation using TerraSAR-X data
Author :
Malz, Elke ; Scheiber, Rolf ; Mittermayer, Josef ; Snoeij, Paul ; Attema, Evert
Author_Institution :
Electron. Meas. Lab., Ilmenau Univ. of Technol., Ilmenau, Germany
Abstract :
Two Block Adaptive Quantization (BAQ) algorithms considered for implementation on-board Sentinel-1, the Entropy Constrained BAQ (ECBAQ) and the Flexible Dynamic BAQ (FDBAQ) are investigated with real data acquired by TerraSAR-X. The two algorithms are compared with respect to the resulting signal-to-quantization-noise ratio (SQNR) and the compression rate. The results confirm the improved performance of FDBAQ to be expected for Sentinel-1 compared to the more conventional ECBAQ.
Keywords :
quantisation (signal); radar signal processing; synthetic aperture radar; BAQ algorithms; ECBAQ; SQNR; TerraSAR-X data; block adaptive quantization algorithms; compression rate; entropy constrained BAQ; flexible dynamic BAQ; sentinel-1 FDBAQ performance validation; signal-to-quantization-noise ratio; Backscatter; Bit rate; Entropy; Heuristic algorithms; Quantization; Synthetic aperture radar; Block adaptive quantizer; data compression; quantization; synthetic aperture radar (SAR);
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International
Conference_Location :
Munich
Print_ISBN :
978-1-4673-1160-1
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2012.6351216
