| 講演抄録/キーワード |
| 講演名 |
2019-03-14 13:30
Beamforming for Brain-Activity Reconstruction under Time-Correlated Interference ○Takehiro Kono(Keio Univ.)・Masahiro Yukawa(Keio Univ./Riken)・Tomasz Piotrowski(Nicolaus Copernicus Univ./Interdisciplinary Center for Modern Te) EA2018-116 SIP2018-122 SP2018-78 |
| 抄録 |
(和) |
(まだ登録されていません) |
| (英) |
We consider the problem of reconstruction of brain activity from non-invasive electroencephalography (EEG) signals using beamforming (spatial filtering).
An intrinsic gap between the output variance and the mean squared errors
is highlighted that occurs due to the presence of interfering activities correlated with
the desired activity.
We propose a beamformer imposing a quadratic constraint that bounds the total power of interference leakage together with the distortionless constraint for reducing this gap without amplifying the noise.
The proposed beamformer can be implemented efficiently by the adaptive filtering algorithm. Numerical examples show the clear advantages of the proposed beamformer over the minimum-variance distortionless response (MVDR) and nulling beamformers. |
| キーワード |
(和) |
/ / / / / / / |
| (英) |
Electroencephalography / inverse ploblems / relaxed zero forcing / MVDR beamformer / nulling beamformer / / / |
| 文献情報 |
信学技報, vol. 118, no. 496, SIP2018-122, pp. 99-104, 2019年3月. |
| 資料番号 |
SIP2018-122 |
| 発行日 |
2019-03-07 (EA, SIP, SP) |
| ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
| PDFダウンロード |
EA2018-116 SIP2018-122 SP2018-78 |
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