GM3磁通门磁力仪数据实时压缩方法的改进  

Improvement on data compression algorithm for GM3 fluxgate magnetometer

作　　者：王喜珍[1] 滕云田[1] 张炼[1] 张旸[1] 马延妮[1] 王晨[1] 王晓美[1] 

机构地区：[1]中国地震局地球物理研究所,中国北京100081

出　　处：《地震地磁观测与研究》2004年第2期50-54,共5页Seismological and Geomagnetic Observation and Research

摘　　要：研究了GM3磁通门磁力仪数据实时压缩方法,将国际通用的测震数据SEED格式中采用的Steim-1压缩算法引入到地磁数据的实时处理系统中,通过改进压缩算法,提高了压缩率,节省了仪器数据存储空间,减少了台站数据传输时间。Data real time compression algorithm in GM3 fluxgate magnetometer is studied in the paper. In new compression method, Steim-1 algorithm, having been used in the SEED (a universal international seismic data exchange format), is used. Through improving the compression algorithm, the data memory requirement is reduced and data transmission time is fallen because higher compressing rate has been gotten.

关 键 词：磁通门磁力仪 Steim-l算法 数据压缩 地震观测 

分 类 号：P631.43[天文地球—地质矿产勘探]