关键词: SAR, BAQ, 距离聚焦, 线性预测, 信噪比, 比特率, 块自适应量化

Abstract:

It is difficult to directly compress synthetic aperture radar (SAR) raw data for the low relativity. In this paper, a new algorithm is put forward. Range focusing is imposed to SAR raw data, which leads to comparatively high relativity, then a linear prediction is performed along the azimuth direction, and block adaptive quantization is used to the prediction error series.

Key words: SAR,  , BAQ,  , range , focusing,  , linear , prediction,  , signal , to , noise , ratio,  , bit , rate,  , block , adaptive , quantization