Andrew O'Brien

48 papers C 42Journal 6

Year	Rank	Type	Title / Venue / Authors
2024	C	`conf`	Calibration of the Airborne Polarimetric GNSS-R Sensor for the Rongowai Project. IGARSS Dinan Bai, Chris Ruf, Andrew O'Brien, Delwyn Moller
2024	J	`jnl`	Measurement of GPS Antenna Gain Patterns for CYGNSS Using a Spaceborne Antenna Range. IEEE Trans. Aerosp. Electron. Syst. Tianlin Wang, Christopher S. Ruf, Andrew O'Brien, Scott Gleason, Darren S. McKague, Bruce P. Block, Anthony Russel
2022	C	`conf`	CYGNSS Flood Applications to Support the United Nations Sustainable Development Goals. IGARSS Brandi Wilson-Downs, Albert J. Kettner, G. Robert Brakenridge, Andrew O'Brien, Cinzia Zuffada
2022	C	`conf`	Computing Specular Points Over Complex Land Surfaces for Airborne GNSS-R Applications. IGARSS Xiaoyou Lin, Delwyn Moller, Andrew O'Brien, Ryan Linnabary, Chris Ruf
2022	C	`conf`	Modeling GNSS-R Coherent Scattering from Surface Waters with Wind, Waves, and Vegetation. IGARSS Eric Loria, Cinzia Zuffada, Andrew O'Brien
2022	C	`conf`	Retrieval of Dynamic Changes of Surface Water Extent from Sparse GNSS-R Measurements Using a Model-Driven Approach. IGARSS Brandi Wilson-Downs, Andrew O'Brien, Cinzia Zuffada
2022	C	`conf`	Rongowai: A Pathfinder NASA/NZ GNSS-R Initiative Supporting SDG-15 - Life on Land. IGARSS Delwyn Moller, Matthew Wilson, Rajasweta Datta, Andrew O'Brien, Ryan Linnabary, Chris Ruf
2021	C	`conf`	Operational Airborne GNSS-R Aboard Air New Zealand Domestic Aircraft. IGARSS Delwyn Moller, Chris Ruf, Ryan Linnabary, Andrew O'Brien, Stephen B. Musko
2021	C	`conf`	Overcoming the Current Limitations of GNSS-R Observation of Wetlands and Surface Water. IGARSS Andrew O'Brien, Eric Loria
2021	C	`conf`	State of the Art in GNSS-R Capabilities Over Inland Waters. IGARSS Cinzia Zuffada, Brandi Downs, Ilaria Mara Russo, Eric Loria, Andrew O'Brien, Carmela Galdi, Maurizio di Bisceglie, Valery U. Zavorotny, Marco Lavalle, Mary Morris
2021	J	`jnl`	The IEEE-SA Working Group on Spaceborne GNSS-R: Scene Study. IEEE Access Hugo Carreno-Luengo, Adriano Camps, Chris Ruf, Nicolas Floury, Manuel Martín-Neira, Tianlin Wang, Siri Jodha S. Khalsa, Maria Paola Clarizia, Jennifer Reynolds, Joel T. Johnson, Andrew O'Brien, Carmela Galdi, Maurizio di Bisceglie, Andreas Dielacher, Philip Jales, Martin Unwin, Lucinda S. King, Giuseppe Foti, Rashmi Shah, Daniel Pascual, Bill Schreiner, Milad Asgarimehr, Jens Wickert, Serni Ribo, Estel Cardellach
2021	C	`conf`	The Important Role of Antenna Pattern Characterization in the Absolute Calibration of GNSS-R Measurements. IGARSS Tianlin Wang, Christopher Ruf, Darren McKague, Anthony Russel, Andrew O'Brien, Scott Gleason
2021	C	`conf`	Water Depth Retrieval in the Everglades Using Cygnss. IGARSS Brandi Downs, Andrew O'Brien, Mary Morris, Cinzia Zuffada
2020	C	`conf`	An Adaptive Integration Algorithm for Improved Coherent Reflection Measurement in GNSS-R Instruments. IGARSS Eric Loria, Andrew O'Brien
2020	C	`conf`	Analysis of GNSS-R Coverage by a Regional Aircraft Fleet. IGARSS Ryan Linnabary, Andrew O'Brien, Chris Ruf, Stephen B. Musko, Delwyn Moller
2020	J	`jnl`	Geolocation, Calibration and Surface Resolution of CYGNSS GNSS-R Land Observations. Remote. Sens. Scott Gleason, Andrew O'Brien, Anthony Russel, Mohammad M. Al-Khaldi, Joel T. Johnson
2020	J	`jnl`	Improved GNSS-R Ocean Surface Altimetry With CYGNSS in the Seas of Indonesia. IEEE Trans. Geosci. Remote. Sens. Jake Mashburn, Penina Axelrad, Cinzia Zuffada, Eric Loria, Andrew O'Brien, Bruce J. Haines
2020	C	`conf`	Improved Orbit Determination of the CYGNSS Satellites and its Application to GNSS-R Ocean Altimetry. IGARSS Alex Conrad, Penina Axelrad, Cinzia Zuffada, Bruce J. Haines, Andrew O'Brien, Eric Loria
2020	C	`conf`	Investigation of Coherent and Incoherent Scattering from Lakes Using Cygnss Observations. IGARSS Valery U. Zavorotny, Eric Loria, Andrew O'Brien, Brandi Downs, Cinzia Zuffada
2020	C	`conf`	Monitoring GPS Eirp for Cygnss Level 1 Calibration. IGARSS Tianlin Wang, Christopher Ruf, Scott Gleason, Darren McKague, Andrew O'Brien, Bruce P. Block
2020	C	`conf`	Next Generation GNSS-R Instrument. IGARSS Christopher Ruf, Roger Backhus, Timothy Butler, Chi-Chih Chen, Scott Gleason, Eric Loria, Darren McKague, Ryan Miller, Andrew O'Brien, Line van Nieuwstadt
2020	J	`jnl`	Real-Time Detection and Filtering of Radio Frequency Interference Onboard a Spaceborne Microwave Radiometer: The CubeRRT Mission. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. Joel T. Johnson, Christopher D. Ball, Chi-Chih Chen, Christa McKelvey, Graeme E. Smith, Mark J. Andrews, Andrew O'Brien, Joseph Landon Garry, Sidharth Misra, Rudi Bendig, Carl Felten, Shannon T. Brown, Robert Jarnot, Jonathon Kocz, Kevin Horgan, Jared F. Lucey, Joseph J. Knuble, Michael Solly, Carlos Duran-Aviles, Jinzheng Peng, Damon Bradley, Jeffrey R. Piepmeier, Doug Laczkowski, Matthew Pallas, Nick Monahan, Ervin Krauss
2020	C	`conf`	Simulation Study of Cygnss Observability of Dynamic Inundation Events. IGARSS Brandi Downs, Eric Loria, Andrew O'Brien, Valery U. Zavorotny, Cinzia Zuffada
2020	C	`conf`	The GRSS Standard for GNSS-Reflectometry. IGARSS Hugo Carreno-Luengo, Adriano Camps, Nicolas Flouri, Manuel Martín-Neira, Chris Ruf, Tianlin Wang, Siri Jodha S. Khalsa, Maria Paola Clarizia, Jennifer Reynolds, Joel T. Johnson, Andrew O'Brien, Carmela Galdi, Maurizio di Bisceglie, Andreas Dielacher, Philip Jales, Martin Unwin, Lucinda S. King, Giuseppe Foti, Rashmi Shah, Daniel Pascual, Bill Schreiner, Milad Asgarimehr, Jens Wickert, Serni Ribó, Estel Cardellach
2020	C	`conf`	Wind Vector and Wave Height Retrieval in Inland Waters Using CYGNSS. IGARSS Eric Loria, Andrew O'Brien, Valery U. Zavorotny, Cinzia Zuffada
2019	C	`conf`	A Real-Time EIRP Level 1 Calibration Algorithm for the CYGNSS Mission Using the Zenith Measurements. IGARSS Tianlin Wang, Christopher Ruf, Scott Gleason, Bruce P. Block, Darren McKague, Andrew O'Brien
2019	C	`conf`	Analysis of Wetland Extent Retrieval Accuracy Using Cygnss. IGARSS Eric Loria, Andrew O'Brien, Valery U. Zavorotny, Marco Lavalle, Clara C. Chew, Rashmi Shah, Cinzia Zuffada
2019	J	`jnl`	Comparison of Maximum-Likelihood Estimation and Other Methods for Clutter Doppler Centroid Estimation. IEEE Trans. Aerosp. Electron. Syst. Shanka N. Wijesundara, Kristine L. Bell, Graeme E. Smith, Andrew O'Brien, Joel T. Johnson
2019	C	`conf`	Fully Adaptive Cloud Profiling Radar Simulation. IGARSS Jakob DeLong, Mohammad Abu Shattal, Andrew O'Brien, Christopher D. Ball, Joel T. Johnson, Graeme E. Smith
2019	C	`conf`	Open Source Software for Simulating Collaborative Networks of Autonomous Adaptive Sensors. IGARSS Ryan Linnabary, Andrew O'Brien, Graeme E. Smith, Christopher D. Ball, Joel T. Johnson
2019	C	`conf`	Towards An Ocean Altimetry Product Using Cygnss. IGARSS Eric Loria, Jake Mashburn, Andrew O'Brien, Penina Axelrad, Cinzia Zuffada, Zhijin Li
2018	C	`conf`	A Comparison of Waveform Model Re-Tracking Methods Using Data from CYGNSS. IGARSS Jake Mashburn, Andrew O'Brien, Penina Axelrad, Cinzia Zuffada, Stephen T. Lowe, Rashmi Shah, Alexander G. Voronovich, Valery U. Zavorotny
2018	C	`conf`	Assessing the Altimetric Measurement from CYGNSS Data. IGARSS Cinzia Zuffada, Bruce J. Haines, George Hajj, Zhijin Li, Stephen T. Lowe, Rashmi Shah, Jake Mashburn, Penina Axelrad, Andrew O'Brien, Paolo Cipollini, Valery U. Zavorotny, Alexander G. Voronovich
2018	C	`conf`	Comparison of Wide Bandwidth Conventional and Interferometric GNSS-R Techniques for Possible CYGNSS Follow-On Mission. IGARSS Rachel Norris, Chris Ruf, Eric Loria, Andrew O'Brien
2018	C	`conf`	CubeSat Radiometer Radio Frequency Interference Technology (CubeRRT) Validation Mission: Enabling Future Resource-Constrained Science Missions. IGARSS Sidharth Misra, Shannon T. Brown, Robert Jarnot, Carl Felten, Rudi Bendig, Jonathan Kocz, Christa McKelvey, Christopher D. Ball, Chi-Chih Chen, Andrew O'Brien, Graeme E. Smith, Mark J. Andrews, Joseph Landon Garry, Joel T. Johnson, Priscilla N. Mohammed, Jared F. Lucey, Kevin Horgan, Quenton Bonds, Carlos Duran-Aviles, Michael Solly, Jinzheng Peng, Jeffrey Piepmeier, Doug Laczkowski, Matthew Pallas, Ervin Krauss
2018	C	`conf`	Detection & Separation of Coherent Reflections in GNSS-R Measurements Using CYGNSS Data. IGARSS Eric Loria, Andrew O'Brien, Inder J. Gupta
2018	C	`conf`	Fully Adaptive Remote Sensing Observing System Simulation Experiments. IGARSS Graeme E. Smith, Adam E. Mitchell, Christopher D. Ball, Andrew O'Brien, Joel T. Johnson
2018	C	`conf`	GNSS-R Time-Series Soil Moisture Retrievals from Vegetated Surfaces. IGARSS Muhammad A. Al-Khaldi, Joel T. Johnson, Andrew O'Brien, Francesco Mattia, Anna Balenzano
2018	C	`conf`	Investigation of Spaceborne Polarimetric GNSS-R Over Land Using the Smap Radar Receiver. IGARSS Matthew Buchanan, Andrew O'Brien, Joel T. Johnson
2018	C	`conf`	Testing and Operation Planning of the Cubesat Radiometer Radio Frequency Interference Technology Validation (Cuberrt) System. IGARSS Christa McKelvey, Christopher D. Ball, Chi-Chih Chen, Andrew O'Brien, Graeme E. Smith, Mark J. Andrews, Joseph Landon Garry, Joel T. Johnson, Sidharth Misra, Shannon T. Brown, Robert Jarnot, Rudi Bendig, Carl Felten, Jonathan Kocz, Kevin Horgan, Jared F. Lucey, Carlos Duran-Aviles, Michael Solly, Jinzheng Peng, Jeffrey Piepmeier, Doug Laczkowski, David Hall, Ervin Krauss
2017	C	`conf`	Calibration and validation of the cygnss level 1 data products. IGARSS Scott Gleason, Christopher Ruf, Maria Paola Clarizia, Joel T. Johnson, Andrew O'Brien, Paul S. Chang, Zorana Jelenak, Faozi Said, Seubson Soisuvarn
2017	C	`conf`	Comparing the cygnss simulator forward scattering model with TDS-1 and cygnss on-orbit DDMS. IGARSS Andrew O'Brien, Joel T. Johnson
2017	C	`conf`	Development of the cubesat radiometer radio frequency interference technology validation (cuberrt) system. IGARSS Christopher D. Ball, Chi-Chih Chen, Andrew O'Brien, Graeme E. Smith, Christa McKelvey, Mark J. Andrews, Joseph Landon Garry, Joel T. Johnson, Sidharth Misra, Shannon T. Brown, Robert Jarnot, Jonathan Kocz, Damon Bradley, Priscilla N. Mohammed, Jared F. Lucey, Kevin Horgan, Quenton Bonds, Carlos Duran-Aviles, Michael Solly, Jeffrey Piepmeier, Matthew Pallas, Ervin Krauss
2017	C	`conf`	Investigating "rapid revisit" observations of cygnss. IGARSS Jeonghwan Park, Joel T. Johnson, Andrew O'Brien, Yuchan Yi
2017	C	`conf`	Investigation of spaceborne polarimetric GNSS-R using the SMAP radar instrument. IGARSS Matthew Buchanan, Andrew O'Brien
2016	C	`conf`	Studies of TDS-1 GNSS-R ocean altimetry using a "full DDM" retrieval approach. IGARSS Jeonghwan Park, Joel T. Johnson, Andrew O'Brien, Stephen T. Lowe
2016	C	`conf`	The CubeSat Radiometer Radio Frequency Interference Technology Validation (CubeRRT) mission. IGARSS Joel T. Johnson, Chi-Chih Chen, Andrew O'Brien, Graeme E. Smith, Christa McKelvey, Mark J. Andrews, Christopher D. Ball, Sidharth Misra, Shannon T. Brown, Jonathan Kocz, Robert Jarnot, Damon C. Bradley, Priscilla N. Mohammed, Jared F. Lucey, Jeffrey R. Piepmeier
2015	C	`conf`	Real-time estimation of ocean wave fields from marine radar data. IGARSS David R. Lyzenga, Okey G. Nwogu, Robert F. Beck, Andrew O'Brien, Joel T. Johnson, Tony de Paolo, Eric Terrill