Analysis and elimination of tri-band beacon interference with the fluxgate sensors onboard CSES  

作　　者：TONG YuQi CHENG BingJun MIAO YuanQing ZHOU Bin ZHU XingHong YANG YanYan LIU Ji GOU XiaoChen ZHANG YiTeng WANG JinDong LI Lei MAGNES Werner LAMMEGGER Roland POLLINGER Andreas ZEREN Zhima SHEN XuHui 

机构地区：[1]National Space Science Center,Chinese Academy of Sciences,Beijing 100190,China [2]University of Chinese Academy of Sciences,Beijing 100049,China [3]DFH Satellite Co.Ltd.,Beijing 100081,China [4]National Institute of Natural Hazards,Ministry of Emergency Management of China,Beijing 100085,China [5]Department of Physics,University of Alberta,Edmonton T6G2R3,Canada [6]Space Research Institute,Austrian Academy of Sciences,Graz 8042,Austria [7]Institute of Experimental Physics,Graz University of Technology,Graz 8010,Austria

出　　处：《Science China(Technological Sciences)》2021年第10期2328-2336,共9页中国科学（技术科学英文版）

基　　金：supported by the National Key Research and Development Program of China(Grant Nos.2018YFC1503501,2016YBF0501503);the Dragon 5 Cooperation 2020-2024(Grant No.59236);the International Space Science Institute-Beijing(Grant No.2019IT-33)。

摘　　要：High precision magnetometer(HPM)is a magnetic field detection payload onboard China Seismo-Electromagnetic Satellite(CSES),including two fluxgate magnetometers(FGM)and a coupled dark state magnetometer(CDSM).Observations show that FGM appears to be influenced when tri-band beacon(TBB)is powered on and emits electromagnetic waves.The interference phenomenon is further validated based on both in-orbit observation analysis and electromagnetic compatibility(EMC)tests on the ground.A joint correction algorithm based on the least square fitting and first-order difference method according to scalar magnetometer data is proposed to eliminate the interference.The algorithm significantly improves the consistency of HPM data.After correction,the average scalar deviation error could be reduced from 9.0 nT to around 0.7 nT.

关 键 词：China Seismo-Electromagnetic Satellite high precision magnetometer MAGNETOMETER data processing 

分 类 号：P315.62[天文地球—地震学] TP212[天文地球—固体地球物理学]