Title :
Reduction of non-periodic environmental magnetic noise in MEG measurement by continuously adjusted least squares method
Author :
Adachi, Y. ; Shimogawara, M. ; Higuchi, M. ; Haruta, Y. ; Ochiai, M.
Author_Institution :
Appl. Electron. Lab., Kanazawa Inst. of Technol., Japan
fDate :
3/1/2001 12:00:00 AM
Abstract :
We developed a signal processing method named CALM (Continuously Adjusted Least squares Method) to reduce the non-periodical low-frequency noise during magnetoencephalography (MEG) measurements. With this method, we have successfully measured motor related cortical fields (MRCF) under daytime heavy urban noise
Keywords :
least squares approximations; magnetic noise; magnetoencephalography; medical signal processing; MEG measurement; continuously adjusted least squares method; daytime heavy urban noise; environmental magnetic noise; magnetoencephalography; motor related cortical field; nonperiodic low-frequency noise; signal processing; Biomedical signal processing; Biosensors; Least squares methods; Low-frequency noise; Magnetic field measurement; Magnetic noise; Magnetic sensors; Noise measurement; Noise reduction; Working environment noise;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
