空间科学学报2017，Vol.37Issue(2)：151-157,7.DOI:10.11728/cjss2017.02.151
多点磁场协同探测反演电离层电流密度
Inversion of the Ionospheric Current Density by Multi-point Synchronous Magnetic Field Measurements
摘要
Abstract
Compared with the traditional single-point measurements,multi-point synchronous magnetic field measurements can give more accurate space current density because multi-point measurement can eliminate the temporal change in the magnetic field.Based on the current density inversion method for multi-point magnetic field measurements,the inverse current density and its error is simulated,and the effects of some factors,on the space current density inversion are analyzed.These factors conclude the number of satellites,satellite formation configuration,satellite positioning precision,satcllite attitude determination error,magnetic field measurement accuracy,external magnetic field intensity,and external current density and so on.Simulation results show that 5-point measurements are better than 4-point measurements,and satellite attitude determination error,satellite formation configuration and external magnetic field intensity are the main factors causing the error of current density.According to the simulation,the maximum error of current density near the equator is about 24％ as the attitude determination error is 0.001° and the satellite formation scale is about 100 km.关键词
多点探测/磁场探测/电离层电流密度Key words
Multi-point observation/Magnetic field measurement/Ionospheric current density分类
天文与地球科学引用本文复制引用
高睿,李磊,张艺腾,刘学旺,李明涛..多点磁场协同探测反演电离层电流密度[J].空间科学学报,2017,37(2):151-157,7.基金项目
国家重点研发计划项目资助(2016YFB0501503) （2016YFB0501503）
