Signal processing and analysis

8 terms
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feature classification
تصنيف الميزات

Using extracted features to classify or decode the user's intent. It is typically the next step after feature extraction, using algorithms to categorize features into meaningful classes for BCI applications.

Signal processing and analysis
frequency domain analysis
تحليل المجال الترددي

Transforming time-domain signals into the frequency domain to analyse the signals' characteristics at different frequencies.

Signal processing and analysis
Independent Component Analysis (ICA)
تحليل المكونات المستقلة

A statistical method used to separate a multivariate signal into its independent, constituent sources. In BCI, it is most commonly used for artifact removal, such as separating eye blinks and muscle noise from the underlying brain signals.

Signal processing and analysis
rate coding
تشفير المعدل

A neural coding scheme where information is encoded in the frequency or rate of neuronal action potentials.

Signal processing and analysis
Source Localization
تحديد موقع المصدر العصبي

Reconstruction of neural signal origins using inverse modeling techniques.

Signal processing and analysis
spatial domain analysis
تحليل المجال المكاني

Computing the physical layout or spatial distribution of brain activity as measured by sensors

Signal processing and analysis
temporal domain analysis
تحليل المجال الزمني

Observing how the amplitude or value of the neural signals changes as a function of time.

Signal processing and analysis
Windowing
تقسيم الإشارة إلى نوافذ زمنية

Dividing continuous neural data into short segments (windows) for localized or real-time analysis.

Signal processing and analysis