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\begin{document}
\title{A NEW RESEARCH METHOD TO EVALUATE THE IMPACT OF WET RADOMES ON DUAL-POLARIZED WEATHER RADARS AND COMMUNICATION SYSTEMS}
\author{ALESSIO MANCINI}
\depositdate{2018}
\majorfield{SCHOOL OF ELECTRICAL AND COMPUTER ENGINEERING}
\memberone{Dr. Jorge L. Salazar-Cerren\~o, Chair}
\membertwo{Dr. Tian-You Yu}
\memberthree{Dr. Hjalti Sigmarsson}
\memberfour{Dr. Yan Zhang}
\memberfive{Dr. Yang Hong}


\begin{preface} 

\prefacesection{Acknowledgments}
{I would like to thank my advisor, Dr. Jorge Salazar-Cerre\~no for his excellent mentoring, guidance and constant support. I appreciate the time and effort he dedicated to ensure my academic, professional, and personal success. Special thanks to Dr. Robert Palmer for being an amazing director of the Advanced Radar Research Center. Thanks to Dr. Boon-Leng Cheong with whom I partially worked during this project, for providing insightful comments on my research. I would also like to thank Dr. Tian-You Yu, Dr. Hjalti Sigmarsson, Dr. Yan Zhang, and Dr. Yang Hong for making their time and effort available to become a member of the Ph.D. committee. Thanks to Dr. Nafati Aboserwal and Dr. Zeeshan Qamar for technical consulting. A special thank to Dr. Guifu Zhang for lending the disdrometer and to Dr. Petar Bukovcic for providing me the rain rate measurements. Additional thanks to my fellows Jos\'e D\'iaz, Javier Ortiz, Rodrigo Lebr\'on, Arturo Umeyama, and Alex Stringer. And last but not least, I am forever grateful to my family, especially my parents, for always encouraging me to take the next step, and for enabling me to continue my graduate education abroad.

This work was supported by Dr. Salazar's fundings and partially by the Spectrum Efficient Surveillance Radar (SENSR).
\\}

\tableofcontents
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\prefacesection{Abstract}
The purpose of this dissertation is to provide a detailed study of the effect of water accumulated on wet radomes. To accomplish this goal, a novel method to evaluate the impact of wet radomes on dual-polarized weather radar systems in real-time is developed at the Advanced Radar Research Center (ARRC) of the University of Oklahoma. This technique consists of measuring in real-time, in the same direction as the radar is scanning, the level of attenuation introduced by the water accumulated on the radome. The proposed method is based on the measurement of the reflectance at the air-radome interface, and through post-processing the attenuation can be estimated. This technique can be used as a potential solution for future radar calibration methods.

A second approach to characterize radomes, consists of measuring the radiation pattern of an 8 x 2 phased array radar antenna considering various water formations positioned on the internal radome of the antenna. This method allows to account for sidelobe level and cross-polarization increase, and also to estimate the attenuation occurring on the mean beam.
\end{preface}

\chapter{Introduction}
\label{chap_1}
\input{chap_1}

\chapter{Theoretical Background}
\label{chap_2}
\input{chap_2}

\chapter{Radome Design and Modeling for Dual-Polarized Weather Radars}
\label{chap_3}
\input{chap_3}
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\chapter{Wet Radome Analysis}
\label{chap_4}
\input{chap_4}
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\chapter{Proposed Radome Measurement Technique}
\label{chap_5}
\input{chap_5}
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\chapter{Validation of the Proposed Method}
\label{chap_6}
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\chapter{Epilogue}
\label{chap_7}
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%%%%%% APPENDICES
\begin{appendices}
\chapter{Time Domain Considerations}
\label{app_A}
\input{app_A}

\chapter{Software}
\label{app_B}
\input{app_B}

\chapter{Two-Layer Dielectric Rod Antenna}
\label{app_C}
\input{app_C}

\end{appendices}

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