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11	Digital Signal Characterization for Seizure Detection Using Frequency Domain Analysis Li, Jing January 2021 (has links) Nowadays, a significant proportion of the population in the world is affected by cerebral diseases like epilepsy. In this study, frequency domain features of electroencephalography (EEG) signals were studied and analyzed, with a view being able to detect epileptic seizures more easily. The power spectrum and spectrogram were determined by using fast fourier transform (FFT) and the scalogram was found by performing continuous wavelet transform (CWT) on the testing EEG signal. In addition, two schemes, i.e. method 1 and method 2, were implemented for detecting epileptic seizures and the applicability of the two methods to electrocardiogram (ECG) signals were tested. A third method for anomaly detection in ECG signals was tested. / En signifikant del av population påverkas idag av neurala sjukdomar som epilepsi. I denna studie studerades och analyserades egenskaper inom frekvensdomänen av elektroencefalografi (EEG), med sikte på att lättare kunna upptäcka epileptiska anfall. Effektspektrumet och spektrogramet bestämdes med hjälp av en snabb fouriertransform och skalogrammet hittades genom att genomföra en kontinuerlig wavelet transform (CWT) på testsignalen från EEGsignalen. I addition till detta skapades två system, metod 1 och metod 2, som implementerades för att upptäcka epileptiska anfall. Användbarheten av dessa två metoder inom elektrokardiogramsignaler (ECG) testades. En tredje metod för anomalidetektering i ECGsignaler testades. Fourier Transform Wavelet Transform EEG and ECG Anomaly Detection Approximate Entropy Hellinger Distance Long Short- Term Memory Fourier Transform Wavelet Transform EEG och ECG Anomalidetektion Approximativ Entropi Hellinger Distans Lång Korttidsminne Computer and Information Sciences Data- och informationsvetenskap
12	Approximations and Applications of Nonlinear Filters / Approximation und Anwendung nichtlinearer Filter Bröcker, Jochen 30 January 2003 (has links) No description available. 530 Physik Mathematics and Computer Science Nichtlineare Filterung Dynamische Systeme Sequenzielle Datenerfassung Endlich Dimensionale Filter Kullback-Leibler Abstand Hellinger Abstand Totale Variation Exponentielle Familien Lineare Familien Monte-Carlo Filter kommunikationssysteme Parameterschätzung nonlinear filtering dynamical systems sequencial data aquisition finite dimensional filter Kullback-Leibler distance Hellinger distance total variation distance exponential families linear families Monte Carlo filter communication systems parameter estimation 31.73 E

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Digital Signal Characterization for Seizure Detection Using Frequency Domain Analysis

Approximations and Applications of Nonlinear Filters / Approximation und Anwendung nichtlinearer Filter