摘要
感应式磁力仪是用于0.01~20kHz空间交流磁场探测的载荷,其传感器由三轴正交的探头组成.由于卫星平台及载荷的独特性和多样性,目前没有通用的地面测试软件.为在发射前对载荷进行全面测试,设计了基于Matlab的数据预处理软件系统,集成波形、幅度和相位多种显示界面,并针对感应式磁力仪信号频带宽、三轴正交等特点研发了多分辨率快速傅里叶变换、滑动平均滤波、相位差计算等数据处理功能.经多阶段实验验证,软件满足对载荷全方位检测及验证要求.
The induction magnetometer is an instrument for detecting AC magnetic field from 10 Hz to 20 kHz in space. The probes are three-axis orthogonal coordinated. Because of the uniqueness and diversity, there is no general ground testing software for specified satellite platforms or payloads at present. In order to test in detail before launch, a data preprocessing software system based on Matlab is designed for induction magnetometer. The software system integrates waveform, amplitude and phase display interfaces. Meanwhile, plenty of data processing functions are designed for the characteristics of wide frequency band and three-axis orthogonal, such as multi-resolution fast Fourier transform, moving average filtering, phase difference calculation. Experiments prove that it can meet the requirements of all-directional load testing and verification.
作者
陈昱
韩潇
王越
王鹏飞
CHEN Yu HAN Xiao WANG Yue WANG Pengfei(School of Space and Environment, Beihang University, Beijing 100191)
出处
《空间科学学报》
CSCD
北大核心
2017年第5期622-628,共7页
Chinese Journal of Space Science
基金
国家自然科学基金项目资助(41074130
41327802)
关键词
感应式磁力仪
MATLAB
多分辨率
滑动平均
相位差
Induction magnetometer
Matlab
Multi-resolution
Moving average filter
Phase difference
