合成孔径雷达数据压缩的研究

RESEARCH ON SAR DATA COMPRESSION

该文对合成孔径雷达数据相关特性进行了分析研究,提出对合成孔径雷达的成像数据采用区域自适应量化的JPEG方法进行压缩。并且在此基础上,提出对SAR复数图像进行压缩保留相位信息的方法。

The correlation characteristics of SAR raw data, interim data and image data are studied. A region adaptive compression method based on JPEG algorithm is developed and applied to the compression of SAR image data. Furthermore, on the basis of this method, a compression method of the SAR complex image data is developed, which reserved the phase information and had low bit rate comparing to direct quantization.