Actions for Coherent Software-Defined Radio for Multi-Dynamic Weather Radar Receiver Networks

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Coherent Software-Defined Radio for Multi-Dynamic Weather Radar Receiver Networks

Author
Meade, Robert
Published
[University Park, Pennsylvania] : Pennsylvania State University, 2021.
Physical Description
1 electronic document
Additional Creators
Urbina, Julio and Schreyer Honors College
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Open Access.
Summary
Advancements in Software-Defined Radio (SDR) are investigated for their prospects in creating multi-dynamic S-band weather radar receivers to augment the NEXRAD WSR-88D systems operated by the National Weather Service, specifically the system operating in State College, PA at 2.875 GHz (KCCX). Multiple-channel coherent SDR is paired with dual-polarization antenna systems at L-band frequencies to make meaningful measurements that can be used to derive dual-polarization radar products such as differential reflectivity and correlation coefficient when targets are illuminated with a circularly polarized L-band transmitter. RF mixer downconverters and GPS disciplined oscillator referenced transmitters are used to assess frequency stability of coherent SDRs without external reference oscillators at VHF IF frequencies for making meaningful doppler measurements of backscattered radiation from WSR-88D systems. Precise timestamping of received radiation IF data streams using GPS and/or network timing methods is assessed as a means of enabling ranging calculations when coupled with a timestamped memory of what a given WSR-88D radar has transmitted.
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Dissertation Note
B.S. Pennsylvania State University 2021.
Technical Details
The full text of the dissertation is available as an Adobe Acrobat .pdf file ; Adobe Acrobat Reader required to view the file.
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