遥感卫星原始数据质量检查方法与实现

A Quality Identifying Method and Implementation of Remote Sensing Satellite Raw Data

本文在研究了国内外多颗遥感卫星数据传输格式的基础上,提出了一种遥感卫星原始数据质量检查的快速方法,在星地对接和接收站数据质量检查工作中得到了应用。该方法利用查找表算法对原始数据中已知的信息如同步字、部分辅助数据等进行快速比对检测。采用数据分段分析的策略,实现对整轨卫星数据的检测分析,并通过直观的图表形式给出数据质检报告。作者以资源、环境减灾等卫星数据为研究对象,在软件帧同步、RS解码等方面进行了深入的研究,获得良好效果。

A quick quality identifying method of remote sensing satellite raw data is introduced in this article.The method has been applied in remote sensing satellite ground station.Based on LUT,the method checks raw data via frame synchronization code and auxiliary data to identify its quality.In order to give out specific report,raw data was divided into several sections.Take HJ satellite raw data for example,this article discussed frame synchronization and Reed-Solomon decoding techniques efficiently.