MP67 - Removal method of correlation artifact based on reference magnetic signal.
- Event
- EUROSENSORS XXXVII
2025-09-07 - 2025-09-10
Wroclaw - Band
- Poster I
- Chapter
- Quantum Sensors
- Author(s)
- Y. Li, H. Lu, F. Cao, C. Wang, X. Ning - Beihang University (Beijing), D. Wang - Beijing Microelectronics Technology Institute, Beijing (China)
- Pages
- 337 - 338
- DOI
- 10.5162/EUROSENSORS2025/MP67
- ISBN
- 978-3-910600-07-2
- Price
- free
Abstract
An OPMs-based hardware system has been constructed for the synchronous recording of magne-toencephalography (MEG) signals and reference magnetic signals of physiological artifacts such as eye blinks and cardiac magnetic fields. The randomized dependence coefficient (RDC) is used to evaluate the correlation between independent components and reference signals. Removing physiological arti-facts according to the threshold of correlation can significantly improve the signal-to-noise ratio of MEG signals. In the calculation of RDC, the input features are standardized by Copula transform, and then high-dimensional features are constructed by random projection and activation function. Finally, the correlation is obtained by regularized canonical correlation analysis (RCCA).