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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.
Induction Magnetometer is used to detect the AC magnetic field in the space of 0.01 ~ 20kHz, and the sensor consists of three-axis orthogonal probes. Due to the uniqueness and diversity of the satellite platform and load, there is no common ground test software currently. Before launch, the load was fully tested, and a data preprocessing software system based on Matlab was designed. Various display interfaces of waveform, amplitude and phase were integrated. Based on the characteristics of signal frequency bandwidth and three axes of induction magnetometer, multi-resolution Rate fast Fourier transform, sliding average filter, phase difference calculation and other data processing functions.After multi-stage experimental verification, the software meets the requirement of full load detection and verification.