Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"power spectrum estimation"”.
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From theoretical promise to observational reality : calibration, foreground subtraction, and signal extraction in hydrogen cosmology
… a unified mathematical framework that includes power spectrum estimation. Foreground subtraction is also explored in the context of global signal experiments, and data analysis methods that incorporate angular information are presented. Finally, we apply many of the aforementioned methods to …
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Initial exploration of 21-cm cosmology with imaging and power spectra from the Murchison Widefield Array
… Australia with a primary goal of measuring the power spectrum of the 21-cm signal from neutral hydrogen during the Epoch of Reionization (EoR). In this thesis, we detail efforts to characterize the MWA system, and present scientific results from a 32-element prototype interferometer deployed at …
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Probing Cosmology with the MeerKAT Interferometer
… on the COSMOS field is used to measure the Hi power spectrum signal in the Early Science frequency range of 1310- 1420 MHz, in a sub-band of 60 MHz spanning a redshift range of 0.02 ≤ z ≤ 0.066, corresponding to 1332 MHz ≤ ν ≤ 1392 MHz. After mitigating low-level broadband contamination through …
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Uncertainties in Oceanic Microwave Remote Sensing: The Radar Footprint, the Wind-Backscatter Relationship, and the Measurement Probability Density Function
… sensing provides the data necessary for the estimation of significant geophysical parameters such as the near-surface vector wind. To obtain accurate estimates, a precise understanding of the measurements is critical. This work clarifies and quantifies specific uncertainties in the scattered …