James D. Campbell

13 papers C 5Journal 8
YearRankTypeTitle / Venue / Authors
2025 J jnl
Analytical Assessment of GNSS-R Delay Doppler Map Sensitivity to Land Surface Variables Using a Physics-Based Model.
IEEE Trans. Geosci. Remote. Sens.
Amer Melebari, James D. Campbell, Erik Hodges, Mahta Moghaddam
2024 C conf
Sensitivity Analysis OF GNSS-R Delay Doppler Maps to Soil Moisture and Vegetation Using a Physics-Based Model.
IGARSS
Amer Melebari, James D. Campbell, Erik Hodges, Mahta Moghaddam
2024 C conf
Uncertainty Quantification in Machine Learning Based Retrieval of Soil Moisture from GNSS-R Observations.
IGARSS
Grigorios Tsagkatakis, Amer Melebari, Ruzbeh Akbar, James D. Campbell, Erik Hodges, Mahta Moghaddam
2023 J jnl
Improved Geometric Optics with Topography (IGOT) Model for GNSS-R Delay-Doppler Maps Using Three-Scale Surface Roughness.
Remote. Sens.
Amer Melebari, James D. Campbell, Erik Hodges, Mahta Moghaddam
2023 J jnl
Using Lidar Digital Elevation Models for Reflectometry Land Applications.
IEEE Trans. Geosci. Remote. Sens.
Erik Hodges, James D. Campbell, Amer Melebari, Alexandra Bringer, Joel T. Johnson, Mahta Moghaddam
2023 C conf
Validation of the Improved Geometric Optics with Topography (IGOT) GNSS-R Model Using Cygnss Land Observations.
IGARSS
Amer Melebari, James D. Campbell, Erik Hodges, Mahta Moghaddam
2022 J jnl
GNSS-R Soil Moisture Retrieval for Flat Vegetated Surfaces Using a Physics-Based Bistatic Scattering Model and Hybrid Global/Local Optimization.
Remote. Sens.
Amir Azemati, Amer Melebari, James D. Campbell, Jeffrey P. Walker, Mahta Moghaddam
2022 J jnl
Intercomparison of Electromagnetic Scattering Models for Delay-Doppler Maps Along a CYGNSS Land Track With Topography.
IEEE Trans. Geosci. Remote. Sens.
James D. Campbell, Ruzbeh Akbar, Alexandra Bringer, Davide Comite, Laura Dente, Scott T. Gleason, Leila Guerriero, Erik Hodges, Joel T. Johnson, Seung-Bum Kim, Amer Melebari, Nazzareno Pierdicca, Christopher S. Ruf, Leung Tsang, Tianlin Wang, Haokui Xu, Jiyue Zhu, Mahta Moghaddam
2021 C conf
Intercomparison of Models for CYGNSS Delay-Doppler Maps at a Validation Site in the San Luis Valley of Colorado.
IGARSS
James D. Campbell, Ruzbeh Akbar, Amir Azemati, Alexandra Bringer, Davide Comite, Laura Dente, Scott T. Gleason, Leila Guerriero, Erik Hodges, Joel T. Johnson, Seung-Bum Kim, Amer Melebari, Nazzareno Pierdicca, Bowen Ren, Christopher S. Ruf, Leung Tsang, Haokui Xu, Jiyue Zhu, Mahta Moghaddam
2020 J jnl
Modeling the Effects of Topography on Delay-Doppler Maps.
IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens.
James D. Campbell, Amer Melebari, Mahta Moghaddam
2020 C conf
Soilscape Wireless in Situ Networks in Support of Cyngss Land Applications.
IGARSS
Ruzbeh Akbar, James D. Campbell, Agnelo R. Silva, Richard H. Chen, Amer Melebari, Erik Hodges, Dara Entekhabi, Chris Ruf, Mahta Moghaddam
2015 J jnl
Ownership and pricing of information: A model and application to open access.
Inf. Econ. Policy
James D. Campbell
2001 J jnl
Introducing Computer-Based Telemedicine in Three Rural Missouri Counties.
J. Organ. End User Comput.
Kimberly D. Harris, Joseph F. Donaldson, James D. Campbell