关键词: 合成孔径雷达(SAR), 球形矢量量化, 块自适应量化, 矢量量化

Abstract: In this paper,we propose to employ the block adaptive spherical vector quantization for compression of synthetic aperture radar (SAR) raw data.This algorithm exploits the known result that a blockwise normalized SAR raw signal is a Gaussian stationary process.With the comparison and analysis of quality parameters computed on the image, the proposed block adaptive spherical vector quantization shows an interesting performance/complexity trade-off, with respect to other algorithms such as the block adaptive quantization and the block adaptive vector quantization.

Key words: SAR, spherical vector quantization, block adaptive quantization, vector quantization