| 方潜生,林汝月,朱徐来.一种基于小波的磁通门传感器信号去噪方法[J].安徽建筑大学学报,2025,33(1):36-42，50 |
| 一种基于小波的磁通门传感器信号去噪方法 |
| A Wavelet-Based Denoising Method for Fluxgate Sensor Signals |
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| DOI： |
| 中文关键词: 磁通门 小波分析，信噪比 均方根误差 阈值函数 |
| 英文关键词: fluxgate wavelet analysis signal-to-noise ratio root mean square error threshold noise reduction |
| 基金项目:安徽省高校省级自然科学研究项目（2022AH050266）；安徽省教育基本建设学会重点项目（2205-5） |
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| 中文摘要: |
| 磁通门信号在采用低通滤波去除噪声的过程中，会引入电路中的白噪声。为了去除磁通门信号中的白噪声，本文在研究双磁芯磁通门的基础上，采用小波分析的方法处理磁通门信号，从而实现去噪。本文采用一种新型阈值函数，通过仿真实验确定小波的最优匹配组合，并将其运用于磁通门信号的去噪处理，所得信噪比和均方根误差分别为25.560 1 dB和0.095 0，相较于传统阈值方法均有所优化。 |
| 英文摘要: |
| In the noise removal by low-pass filtering, the fluxgate signal will introduce white noise in the circuit. To remove the whitenoise in the fluxgate signal, this paper adopts the wavelet analysis method based on the study of the dual-core fluxgate signal. A newthreshold function is used to determine the optimal matching combination of wavelet through simulation experiments, which isapplied to the denoising of the fluxgate signal. The resulting signal-to-noise ratio and root-mean-square error are 25.5601dB and0.0950, respectively, both better than those obtained using the conventional threshold method. |
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