| 分块自适应量化算法的仿真和实现 |
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| 引用本文： | 应波,丁晓伟.分块自适应量化算法的仿真和实现[J].电讯技术,2008,48(6):70-73. |
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| 作者姓名： | 应波 丁晓伟 |
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| 作者单位： | 南京电子技术研究所,南京,210013 |
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| 摘 要： | 介绍了分块自适应量化(BAQ)算法的基本原理,结合机载合成孔径雷达(SAR)原始数据,对其分布特性、均值、量化信噪比等进行了分析,给出了3bitBAQ的压缩仿真和解码成像,并对原始数据、3bitBAQ压缩结果进行了成像比较。研究了该算法在FPGA内的实现方法。
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| 关 键 词： | 合成孔径雷达 分块自适应量化 数据压缩 FPGA |
Simulation and Implementation of BAQ Algorithm |
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| YING Bo,DING Xiao-wei.Simulation and Implementation of BAQ Algorithm[J].Telecommunication Engineering,2008,48(6):70-73. |
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| Authors: | YING Bo DING Xiao-wei |
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| Abstract: | The basic principle of BAQ (Block Adaptive Quantization)algorithm is introduced,and the distribution characteristic, means, quantized SNR of the raw data from the airborne SAR are analyzed. The 3 bit BAQ compression simulation and the decoded image is also provided. The difference between the image from raw data and the 3 bit BAQ compression result is compared. The implementation of the algorithm based on FPGA is also studied. |
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| Keywords: | synthetic aperture radar(SAR) block adaptive quantization(BAQ) data compression FPGA |
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