Flexible Dynamic Block Adaptive Quantization for Sentinel-1 SAR Missions

Attema E.Cafforio C.Gottwald M.Guccione P.Monti Guarnieri A.Rocca F.Snoeij P.

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Flexible Dynamic Block Adaptive Quantization for Sentinel-1 SAR Missions

机译：Sentinel-1 SAR任务的灵活动态块自适应量化

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The letter introduces a novel quantizer suited for medium to high-resolution synthetic aperture radar (SAR) systems, like the forthcoming SENTINEL-1 SAR. The Flexible Dynamic Block Adaptive Quantization (FDBAQ) extends the concept of the Block Adaptive Quantization (BAQ), used in spaceborne SAR since the Magellan mission, by adaptively tuning the quantizer rate according to the local signal-to-noise-ratio (SNR). A design is presented aiming to optimize the average bit-rate, while constraining the minimum SNR. FDBAQ optimized performance is then evaluated using backscatter maps derived from ENVIronment SATellite (ENVISAT) data.

机译：这封信介绍了一种新颖的量化器，适用于中到高分辨率的合成孔径雷达（SAR）系统，例如即将推出的SENTINEL-1 SAR。灵活的动态块自适应量化（FDBAQ）扩展了自麦哲伦任务以来在星载SAR中使用的块自适应量化（BAQ）的概念，方法是根据本地信噪比（SNR）自适应地调整量化速率。提出了旨在优化平均比特率，同时限制最小SNR的设计。然后，使用从卫星环境（ENVISAT）数据得出的反向散射图评估FDBAQ优化性能。

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来源
《Geoscience and Remote Sensing Letters, IEEE》 |2010年第4期|p.766-770|共5页
作者
Attema E.Cafforio C.Gottwald M.Guccione P.Monti Guarnieri A.Rocca F.Snoeij P.;
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作者单位

ESA-ESTEC,Noordwijk,Netherlands;

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原文格式 PDF
正文语种 eng
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关键词
Block adaptive quantizer; data compression; quantization; synthetic aperture radar (SAR);

机译：块自适应量化器;数据压缩;量化;合成孔径雷达（SAR）;

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1. Fusion of dynamic predictive block adaptive quantization and vector quantization for staggered SAR data compression [J] . Zou Hang, Zhao Fengjun, Jia Xiaoxue, Remote sensing letters . 2021,第1a3期

机译：动态预测块自适应量化和矢量量化的融合，用于交错SAR数据压缩
2. Anti-saturation block adaptive quantization algorithm for SAR raw data compression over the whole set of saturation degrees [J] . Haiming Qi, Weidong Yu 自然科学进展（英文版） . 2009,第008期

机译：用于整个饱和度集的SAR原始数据压缩的反饱和块自适应量化算法
3. OPTIMIZATION OF BLOCK-ADAPTIVE QUANTIZATION FOR SAR RAW DATA [J] . C. Parraga Niebla, G. Krieger Space technology . 2003,第2a3期

机译：SAR原始数据的块自适应量化优化
4. Sentinel-1 Flexible Dynamic Block Adaptive Quantizer [C] . Evert Attema, Paul Snoeij, Andrea Monti Guarnieri, 8th European conference on synthetic aperture radar (EUSAR 2010) . 2010

机译：Sentinel-1灵活的动态块自适应量化器
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7. An Optimization Method for BAQ(Block Adaptive Quantization) Threshold Table Using Real SAR Raw Data [O] . Sungjae Lim, Hyonik Lee, Seyoung Kim, 2017

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Flexible Dynamic Block Adaptive Quantization for Sentinel-1 SAR Missions

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