A variable bit rate coding scheme designed for new generation SAR satellites is presented. This coding is based on previous schemes of Block Adaptive Quantizer (BAQ)  and is intended as a possible improvement over Sentinel-1 FDBAQ [3,4]. In this project, the number of quantizers is considered a design choice and the optimization is carried out looking for a set of reflectivity classes in which partition all the imaged areas on the Earth. Superior performances to those envisaged for Sentinel-1 FDBAQ are obtained in terms of SNR vs. average rate. Results come from simulations based on a 16-bit mosaic of C band reflectivity obtained by ESRIN from ENVISAT GM data  and Wien University database of ENVISAT WSM radar reflectivity .
|Titolo:||Optimal Block Quantization for SAR data|
|Data di pubblicazione:||2010|
|Nome del convegno:||IEEE International Radar Conference 2010, RADAR 2010|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1109/RADAR.2010.5494597|
|Appare nelle tipologie:||4.1 Contributo in Atti di convegno|