Fusion of dynamic predictive block adaptive quantization and vector quantization for staggered SAR data compression

2020 ◽  
Vol 12 (2) ◽  
pp. 206-215
Author(s):  
Hang Zou ◽  
Fengjun Zhao ◽  
Xiaoxue Jia ◽  
Heng Zhang ◽  
Wei Wang
Keyword(s):  
Data Compression ◽  
Vector Quantization ◽  
Adaptive Quantization ◽  
Sar Data

Raw SAR data compression using vector quantization

1995 ◽  
Vol 16 (16) ◽  
pp. 3179-3187 ◽  
Author(s):  
J.M. Moureaux ◽  
P. Gauthier ◽  
M. Barlaud ◽  
P. Bellemain
Keyword(s):  
Data Compression ◽  
Vector Quantization ◽  
Sar Data

Fuzzy-Coded Space-Frequency Quantization for SAR Data Compression

2004 ◽  
Vol 1 (2) ◽  
pp. 90-93 ◽  
Author(s):  
D. Gleich ◽  
B. Gergic ◽  
Z. Cucej ◽  
P. Planinsic
Keyword(s):  
Data Compression ◽  
Space Frequency ◽  
Sar Data

Block adaptive quantization of Magellan SAR data

1989 ◽  
Vol 27 (4) ◽  
pp. 375-383 ◽  
Author(s):  
R. Kwok ◽  
W.T.K. Johnson
Keyword(s):  
Adaptive Quantization ◽  
Sar Data

Study on an Algorithm for SAR Raw Data Compression

2013 ◽  
Vol 380-384 ◽  
pp. 1495-1498
Author(s):  
Shang Chun Zeng ◽  
Yun Xia Xie ◽  
Yi Xian Chen ◽  
Zhao Da Zhu
Keyword(s):  
Synthetic Aperture Radar ◽  
Data Compression ◽  
Linear Prediction ◽  
Synthetic Aperture ◽  
Bit Rate ◽  
Compression Method ◽  
Raw Data ◽  
Adaptive Quantization ◽  
Difference Series ◽  
Aperture Radar

t is difficult to directly compress the raw data of synthetic aperture radar for its low relativity. In this paper, a new algorithm is put forward. Firstly range focusing is imposed to SAR raw data, which makes it have comparative high relativity, secondly a linear prediction is performed along the azimuth, lastly block adaptive quantization is used to the prediction difference series. The experiments manifest that with same bit rate, SQNR and SDNR of the algorithm proposed in this paper surpass that of BAQ algorithm. The calculation in this paper is far less than that of compression method after range focusing advised in corresponding reference. The algorithm proposed in this paper has a certain practical value.

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