SAR原始数据压缩编码算法及其比较

Comparison and Implementation of Different SAR Raw Data Compression Algorithms

为了获得更多的目标信息 ,合成孔径雷达 (SAR)接收的原始数据量越来越大。因为下传信道带宽的限制和实时成像的要求 ,原始数据下传前的压缩处理渐渐成为必需。在分析 SAR原始数据的统计特征的基础上 ,介绍三种 SAR原始数据压缩算法 。

The amount of SAR raw data is becoming larger and larger to get more target information.Due to the limited downlink bandwidth and the requirement of real time imaging,the on board data compression processing has been necessary.This paper tells the simulation result and implementation complexity of three compression algorithms based on the analysis of the SAR raw data statistic character,provide a good reference for the selection of data compression algorithm in the SAR system.