Characterizing uncertainties in Doppler measurements using a displaced phase center antenna configuration on spaceborne weather radars
| dc.contributor.author | Graniello, Sergio Daniel, author | |
| dc.contributor.author | Chandrasekar, V, advisor | |
| dc.contributor.author | Cheney, Margaret, committee member | |
| dc.contributor.author | Chavéz, José, committee member | |
| dc.date.accessioned | 2021-09-06T10:25:07Z | |
| dc.date.available | 2023-09-03T10:25:07Z | |
| dc.date.issued | 2021 | |
| dc.description.abstract | The work presented in this thesis explores a new antenna configuration for accurately obtaining Doppler measurements from a spaceborne weather radar. Spaceborne weather radars have the potential to observe the dynamic process of the atmosphere at a global scale. Unlike ground and airborne radar, spaceborne radars have a unique challenge due to high orbital velocities, which result in a decorrelation of successive pulses, adversely affecting the ability to accurately measure the vertical Doppler velocity of clouds and precipitation [1]. A Displaced phase center antenna (DPCA) configuration has been proposed to mitigate the effects that high platform velocity have on single antenna system on a spaceborne weather radar. This work describes the concept of DPCA and its benefits over a single antenna system. This thesis characterizes the performance and its uncertainty for Doppler velocity estimation associated with the technique by simulating a spaceborne weather radar with DPCA. Through this process it was determined that DPCA removes the decorrelation effect that is associated with high platform velocities, resulting in a high accuracy in Doppler estimates in both homogeneous and non-homogeneous conditions. | |
| dc.format.medium | born digital | |
| dc.format.medium | masters theses | |
| dc.identifier | Graniello_colostate_0053N_16742.pdf | |
| dc.identifier.uri | https://hdl.handle.net/10217/233744 | |
| dc.language | English | |
| dc.language.iso | eng | |
| dc.publisher | Colorado State University. Libraries | |
| dc.relation.ispartof | 2020- | |
| dc.rights | Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright. | |
| dc.title | Characterizing uncertainties in Doppler measurements using a displaced phase center antenna configuration on spaceborne weather radars | |
| dc.type | Text | |
| dcterms.embargo.expires | 2023-09-03 | |
| dcterms.embargo.terms | 2023-09-03 | |
| dcterms.rights.dpla | This Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). | |
| thesis.degree.discipline | Electrical and Computer Engineering | |
| thesis.degree.grantor | Colorado State University | |
| thesis.degree.level | Masters | |
| thesis.degree.name | Master of Science (M.S.) |
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