NORMA eResearch @NCI Library

Detecting Exoplanets from light curves of Kepler Mission using Fast Fourier Transform and Recurrence Plots

Singh, Aanchal (2021) Detecting Exoplanets from light curves of Kepler Mission using Fast Fourier Transform and Recurrence Plots. Masters thesis, Dublin, National College of Ireland.

[img]
Preview
PDF (Master of Science)
Download (2MB) | Preview
[img]
Preview
PDF (Configuration manual)
Download (1MB) | Preview

Abstract

The quest for finding life and habitat in the universe other than earth has been going on since long. To uncover it National Aeronautics and Space Administration (NASA) has Kepler Mission which captured data of brightness of stars which are called light curves. These are formed when a star transits from one place to another its host star. This star could be an exoplanet and this is decided by checking its brightness. This data is of a period of time and is in time series format. Using this data, Support Vector Machine is applied first. To improve the performance of models this research uses pre-processing techniques like Fast Fourier Transform and Recurrence plots are applied before feeding the data to any models. Then models like Support Vector Machine and Convolutional Neural Network with VGG16 are used. Different patterns were plotted and time series data was analysed to check if the data point is exoplanet or not. The results for with and without pre processing techniques are compared and they show how FFT and RP make a difference in getting improved performance in terms of accuracy, precision, F1 score, etc.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Exoplanets; light curves; Astropy; Machine learning; deep learning; pre processing; Fast fourier Transform; Recurrence plots
Subjects: Q Science > QA Mathematics > Electronic computers. Computer science
T Technology > T Technology (General) > Information Technology > Electronic computers. Computer science

Q Science > QA Mathematics > Computer software
T Technology > T Technology (General) > Information Technology > Computer software

Q Science > QB Astronomy
Divisions: School of Computing > Master of Science in Data Analytics
Depositing User: Clara Chan
Date Deposited: 14 Dec 2021 15:31
Last Modified: 14 Dec 2021 15:31
URI: http://norma.ncirl.ie/id/eprint/5223

Actions (login required)

View Item View Item