| 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。 |
| 关键词: 合成孔径雷达,分块自适应量化,数据压缩,FPGA |
| DOI：10.3969/j.issn.1001-893X. |
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| 基金项目: |
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| Simulation and Implementation of BAQ Algorithm |
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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. |
| Key words: synthetic aperture radar(SAR),block adaptive quantization(BAQ),data compression,FPGA |
