1. 中北大学机电工程学院
2. 豫西工业集团
纸质出版:2017
移动端阅览
[1]杨智杰,陈国光,朱宜家,范旭,白敦卓.磁通门测量地磁信号的数字化分析[J].传感器与微系统,2017,36(09):25-28+31.
YANG Zhi-jie, CHEN Guo-guang, ZHU Yi-jia, et al. Digital analysis of geomagnetic signals measured by fluxgate[J]. 2017, 36(9): 25-28+31.
[1]杨智杰,陈国光,朱宜家,范旭,白敦卓.磁通门测量地磁信号的数字化分析[J].传感器与微系统,2017,36(09):25-28+31. DOI: 10.13873/j.1000-9787(2017)09-0025-04.
YANG Zhi-jie, CHEN Guo-guang, ZHU Yi-jia, et al. Digital analysis of geomagnetic signals measured by fluxgate[J]. 2017, 36(9): 25-28+31. DOI: 10.13873/j.1000-9787(2017)09-0025-04.
针对现有的磁通门信号处理电路仍以模拟元件为主
电路较为复杂的缺点
提出了一种以数字信号处理器(DSP)为主的信号处理系统
优化磁通门传感器的结构
提高了磁通门传感器的抗干扰能力。根据双磁芯磁通门的基本原理
建立了磁通门数学模型并采用Simulink信号处理模块模拟DSP对磁通门输出信号进行处理;针对双磁芯磁通门上、下磁芯不一致产生的磁通门信号噪声
采用带通滤波方法进行了滤波
仿真结果与理想状态下双铁芯磁通门的输出一致
系统分辨力达到3 n T。通过实验数据与仿真数据的对比
验证了DSP信号处理系统的可行性。
Aiming at the shortcomings of the existing fluxgate signal processing circuit
which is mainly based on analog components and circuit is complicated
a kind of signal processing system based on digital signal processor( DSP) is proposed to optimize the structure of the fluxgate sensor
improving the anti-jamming capability of fluxgate sensor. According to the basic principle of double magnetic flux gate
a mathematical model for fluxgate is established
and the Simulink signal processing module is used to simulate the DSP to process the fluxgate output signal; aiming at fluxgate generated by signal noise of double core magnetic fluxgate up and down core and the simulation results are in accordance with the output of the double-core fluxgate in the ideal state. The system resolution is 3 n T. By comparison of the experimental data and the simulation data
verify the feasibility of signal processing system.
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