Antonio R Segales

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Antonio R. Segales

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Research
Scientist

tony.segales@ou.edu
National Weather Center 4642

Education

PhD, Electrical and Computer Engineering, University of Oklahoma
MS, Electrical and Computer Engineering, University of Oklahoma
BS, Mechatronics, Universidad Nacional de Asuncion

Affiliated CIWRO Team

Cloud Group / BLISS

About

Antonio R. Segales was born in Asunción, Paraguay. He received a B.S. degree in mechatronics engineering from the National University of Asunción, San Lorenzo, Paraguay, in 2016, and M.S. and Ph.D. degrees in electrical and computer engineering from the University of Oklahoma, Norman, OK, USA, in 2019 and 2022, respectively. Since 2021, he has been a Research Scientist with the Cooperative Institute for Severe and High-Impact Weather Operations and Research (CIWRO), at the University of Oklahoma. He works on developing custom uncrewed aerial systems (UASs) and sensor integration specifically designed for weather research. He also works on the calibration and validation of phased array radar (PAR) systems using UAS. His research interests include the control theory of dynamical systems, UAS design and integration, embedded systems programming, CAD modeling, and dynamics of the planetary boundary layer. Dr. Segales is a member of the Association for Unmanned Vehicle Systems International (AUVSI), the Institute of Electrical and Electronics Engineers (IEEE), and the American Meteorological Society (AMS), emphasizing his research efforts for the implementation of UAS for a variety of weather applications.

Research Focus

Design and development of UAS for weather research and applications
Custom sensor integration into UAS
Model characterization of UAS for optimization of data collection and processing

CIWRO Research Themes

Weather Radar and Observations
Forecast Applications Improvements R&D

Publications

Segales, A. R., Schvartzman, D., Burdi, K., Herndon, M. M., and Palmer, R. D., 2024: UAS-Based Antenna Pattern Measurements of the Fully Digital Horus Phased Array Radar. IEEE Radar Conference (RadarConf), Denver, Colorado, USA, pp. 1-6, https://doi.org/10.1109/RadarConf2458775.2024.10548316
Lappin, F. M., de Boer, G., Klein, P., Hamilton, J., Spencer, M., Calmer, R., Segales, A. R., Rhodes, M., Bell, T. M., Buchli, J., Britt, K., Asher, E., Medina, I., Butterworth, B., Otterstatter, L., Ritsch, M., Puxley, B., Miller, A., Jordan, A., Gomez-Faulk, C., Smith, E., Borenstein, S., Thornberry, T., Argrow, B., and Pillar-Little, E., 2024: Data Collected using small uncrewed aircraft systems during the TRacking Aerosol Convection interactions ExpeRiment (TRACER), Earth Syst. Sci. Data, 16, 2525-2541, https://doi.org/10.5194/essd-16-2525-2024
Schvartzman, D., Zrnic, D., Cheong, B., Segales, A. R., and Schneebeli, M., 2024: Measurement of Transmitted Differential Phase on Polarimetric Radars. in IEEE Geoscience and Remote Sensing Letters, vol. 21, pp. 1-5, Art no. 3503105, https://doi.org/10.1109/LGRS.2024.3371387
de Boer, G., Butterworth, B. J., Elston, J. S., Houston, A., Pillar-Little, E., Argrow, B., Bell, T. M., Chilson, P., Choate, C., Greene, B. R., Islam, A., Martz, R., Rhodes, M., Rico, D., Stachura, M., Lappin, F. M., Segales, A. R., Whyte, S., and Wilson, M., 2024: Evaluation and Intercomparison of Small Unvrewed Aircraft Systems Used for Atmospheric Research. J. Atmos. Oceanic Technol, 41, 127-125, https://doi.org/10.1175/JTECH-D-23-0067.1
Segales, A. R., Schvartzman, D., Burdi, K., Salazar-Cerreño, J. L., Fulton, C., and Palmer, R. D., 2023: Far-Field Antenna Pattern Measurements Using a UAS-Based Dynamic Gimbal Scan System. IEEE Transactions on Antennas and Propagation, vol. 72, no. 3, pp 2368-2381, https://doi.org/10.1109/TAP.2023.3335819
Segales, A.R., 2022: Design and Implementation of a Novel Multicopter Unmanned Aircraft System for Quantitative Studies of the Atmosphere. PhD dissertation, University of Oklahoma, https://shareok.org/handle/11244/336925
Segales, A. R., Chilson, P. B, Salazar-Cerreño, J. L., 2022: A Framework for improving data quality of Thermo-Hygrometer sensors onboard unmanned aerial systems for planetary boundary layer research. Atmos. Meas. Tech. Discuss., 15, 2607–2621, https://doi.org/10.5194/amt-15-2607-2022.
Pillar-Little, E. A., Greene, B. R., Lappin, F. M., Bell, T. M., Segales, A. R., de Azevedo, G. B. H., Doyle, W., Kanneganti, S. T., Tripp, D. D., and Chilson, P. B., 2021: Observations of the thermodynamic and kinematic state of the atmospheric boundary layer over the San Luis Valley, CO, using the CopterSonde 2 remotely piloted aircraft system in support of the LAPSRE-RATE field campaign. Earth Syst. Sci. Data, 13, 269-280, https://doi.org/10.5194/essd-13-269-2021
Segales, A. R., Greene, B. R., Bell T. M., Doyle W., Martin J. J., Pillar-Little E. A., and Chilson P. B., 2020: The CopterSonde: An insight into the development of a smart UAS for atmospheric boundary layer research. Atmos. Meas. Tech., 13, 2833–2848, https://doi.org/10.5194/amt-2019-421.
Pillar-Little, E. A., Greene B. R., Segales A. R., de Azevedo G. B. H., Bell T. M., Doyle W., Tripp D. D., Kanneganti S. T., and Chilson P. B., 2020: Observations of the thermodynamic and kinematic state of the planetary boundary layer over the San Luis Valley, CO using remotely piloted aircraft systems during the LAPSE-RATE field campaign, Earth Syst. Sci. Data, https://doi.org/10.5194/essd-13-269-2021.
Chilson, P. B., Bell T. M., Brewster K. A., de Azevedo G. B. H., Carr F. H., Carson K., Fiebrich C. A., Greene B. R., Grimsley J. L., Kanneganti S. T., Martin J., Moore A., Palmer R. D., Pillar-Little E. A., Salazar-Cerreño J., Segales A. R., Weber M., Yeary M., Droegemeier K., 2019: Moving towards a network of autonomous UAS atmospheric profiling stations for observations in the Earth’s lower atmosphere: The 3D Mesonet concept. Sensors, 19 (12), 2720, https://doi.org/10.3390/s19122720.
Greene, B. R., Segales A. R., Bell T. M., Pillar-Little E. A., and Chilson P. B., 2019: Environmental and sensor integration influences on temperature measurements by rotary-wing unmanned aircraft systems. Sensors, 19 (6), 1490, https://doi.org/10.3390/s19061470.
Alvarez, L. V., Moreno, H. A., Segales A. R., Pham, T. G., Pillar-Little, E. A., and Chilson, P. B., 2018: Merging Unmanned Aerial Systems (UAS) Imagery and Echo Soundings with Adapative Sampling Technique for Bathymetric Surveys. Remote Sens, 10(9), 1362, https://doi.org/10.3390/rs10091362
Greene, B. R., Segales A. R., Waugh S., Duthoit S., and Chilson P. B., 2018: Considerations for temperature sensor placement on rotary-wing unmanned aircraft systems, Atmos. Meas. Tech., https://doi.org/10.5194/amt-11-5519-2018.
Duthoit, S., Salazar, J. L., Doyle, W., Segales, A., Wolf, B., Fulton, C., and Chilson, P., 2017: A new approach for in-situ antenna characterization, radome inspection and radar calibration, using an Unmanned Aircraft System (UAS). IEEE Radar Conference (RadarConf), Seattle, WA, USA, pp. 0669-0674, https://doi.org/10.1109/RADAR.2017.7944287

Conference presentations

Segales. A.R., D. Schvartzman, K. Burdi, J. L. Salazar, C. Fulton, R. Palmer, 2024: Far-Field Antenna Pattern Measurement Using a UAS-Based Dynamic Gimbal Scan System. Annual Meeting of the AMS (American Meteorological Society), AMS, Baltimore, Maryland, January 2024.
Segales, A. R., T. M. Bell, B. R. Greene, E. N. Smith, T. Galarneau 2022: CopterSonde UAS feature update: 3D wind estimation using a linear extended state observer model apporach, Virtual oral presentation given at 2022 Annual Meeting of the AMS (American Meteorological Society), AMS, Houston, Texas, January 2022.
Segales, A. R., T. M. Bell, B. R. Greene, W. Doyle, G. Britto Hupsel de Azevedo, P. B. Chilson 2021: The development of a sensorless 3D wind estimation method for UAS in conjunction with the CopterSonde wind vane algorithm for vertical weather profiling, Virtual oral presentation given at 2021 Annual Meeting of the AMS (American Meteorological Society), AMS, Virtual meeting, January 2021.
Segales, A. R., B. Greene, T. Bell, W. Doyle, J. Martin, P. Chilson, 2020: Toward the optimization of atmospheric sampling using unmanned aerial systems: A review of the latest CopterSonde design improvements, Poster presentation given at 2020 Annual Meeting of the AMS (American Meteorological Society), AMS, Boston, MA, January 2020.
Bell, T., A. R. Segales, B. Greene, P. Chilson, 2020: Toward improving wind speed estimates from an ascending rotary-wing UAS, Oral presentation given at 2020 Annual Meeting of the AMS (American Meteorological Society), AMS, Boston, MA, January 2020.
Segales, A.R., B. Greene, W. Doyle, J. Martin, P. Chilson, 2019: The CopterSonde: An Insight into the Development of a Smart Tool for Atmospheric Boundary Layer Research, Oral presentation given at the 2019 ISARRA (International Society for Atmospheric Research using Remotely piloted Aircraft) Meeting, ISARRA, Lugo, Spain, July 2019
Segales, A. R., B. Greene, W. Doyle, J. Martin, P. Chilson, 2019: An Innovative Unmanned Aircraft System Design for Optimal Temperature, Humidity, Wind Speed and Direction Measurements, Poster presentation given at 2019 Annual Meeting of the AMS (American Meteorological Society), AMS, Phoenix, AZ, January 2019.
Bell, T., B. Greene, P. Chilson, P. Klein, M. Carney, D. Turner, J. Lundquist, P. Murphy, C. Plunkett, A. R. Segales, G. B. H. de Azevedo, W. Doyle, 2019: Confronting the Boundary Layer Data Gap: Evaluating New and Existing Methodologies of Probing the Lower Atmosphere, Poster presentation given at 2019 Annual Meeting of the AMS (American Meteorological Society), AMS, Phoenix, AZ, January 2019.
Chilson, P., L. Barbieri, S. Baschsky, T. Bell, S. Borenstein, G. Britto Hupsel de Azevedo, M. Carney, G. de Boer, W. Doyle, B. Greene, A. Houston, S. Kanneganti, P. Klein, S. Kral, J. Lundquist, P. Murphy, E. Pillar-Little, C. Pruett, A. R. Segales, D. Tripp, B. Wolf, 2019: Stormin’ the Atmosphere with Unmanned Aircraft Systems: Early Results From LAPSE-RATE and Lessons Learned, Oral presentation given at 2019 Annual Meeting of the AMS (American Meteorological Society), AMS, Phoenix, AZ, January 2019.

Patents and products

Unmanned aerial system for sampling atmospheric data (US20210214079A1)

Professional organizations

Association for Unmanned Vehicle Systems International (AUVSI)
Institute of Electrical and Electronics Engineers (IEEE)
American Meteorological Society (AMS)

Social Media Contact

X: @TonySeg09
LinkedIn: asegales