iosr-JEEE   Volume-18 ~ Issue-2 ~ Mar. – Apr. 2023

Abstract: In this work, we have recorded and think about different component extraction strategies for grouping and utilizing EEG signal. This paper contains a relative investigation of information decrease techniques which upgrades the arrangement precision. Profound investigation of decay of signs into the recurrence sub groups by wavelet strategy, Discrete Wavelet Transform (DWT) and a set of measurable highlights that were removed from the EEG signs to address the circulation of wavelet coefficients is made sense of. Information aspect strategies like ICA, PCA and LDA are utilized for the decrease of aspect of information and sign vectors which.......

Keywords: BCI, Electroencephalogram, DWT,ICA, PCA, LDA

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[3]. Khosla, Ashima, Padmavati Khandnor, and Trilok Chand. "A comparative analysis of signal processing and classification methods for different applications based on EEG signals." Biocybernetics and Biomedical Engineering 40, no. 2 (2020): 649-690.
[4]. Sharma, Manish, Dipankar Deb, and U. Rajendra Acharya. "A novel three-band orthogonal wavelet filter bank method for an automated identification of alcoholic EEG signals." Applied Intelligence 48, no. 5 (2018): 1368-1378.
[5]. Sharma, Manish, Pragya Sharma, Ram Bilas Pachori, and U. Rajendra Acharya. "Dual-tree complex wavelet transform-based features for automated alcoholism identification." International Journal of Fuzzy Systems 20, no. 4 (2018): 1297-1308.

Abstract: The impact of apodized Point spread function along with its parameters like Encircled energy, zonal energy increment, displaced energy, and relative encircled energy have been studied for a symmetric diffraction-limited optical system using different filters including Co-sinusoidal, Gaussian, and Hanning filters. From our investigation, arranging these filters at the appropriate zone can further improve their effectiveness in suppressing side lobes of the point spread function..

Keywords: Point spread function, Encircled energy, Zonal energy increment, Displaced energy.

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Abstract: The out-of-focus point spread function of optical systems in the presence of primary spherical aberration has been investigated. Considerable reduction of the central maximum intensity and the presence of non-zero first minimum put a severe restriction for Rayleigh criterion to be applied for two-point resolution studies for these systems.

Keywords: PSF, Primary Spherical Aberration, Defocusing

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