Authors: Sai Venkatesh Balasubramanian
One of the exciting prospects in radio astronomy is the observation of the ‘sounds’ of the universe, owing to the fact that radio signals recorded largely falling within the audible frequency range. To this end, the present work purports to the proposal and implementation nonlinear analysis of such radio astronomical data, using qualitative techniques such as time series, spectrum, bispectrum, phase portrait, Poincare section, polar plot, spatiotemporal analysis, wavelet analysis and distance plots, as well as quantitative analysis techniques including the Lyapunov exponent, Kolmogorov entropy and fractal dimension. The analyses results are illustrated for a select assortment of the radio astronomical signals. The analysis techniques and results presented here, coupled with theory backed rigorous investigations into the astronomical mechanisms may serve as a valuable tool for unlocking the secrets of the universe.
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[v1] 2015-10-26 08:28:17
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