A5046491388- Soil Moisture and Remote Sensing
- Oceanographic and Atmospheric Processes
- Meteorological Phenomena and Simulations
- Electromagnetic Scattering and Analysis
- Precipitation Measurement and Analysis
- Radio Wave Propagation Studies
- Geophysical Methods and Applications
- Microwave Imaging and Scattering Analysis
- Electromagnetic Compatibility and Measurements
- Antenna Design and Analysis
- Seismic Waves and Analysis
- Flow Measurement and Analysis
- Antenna Design and Optimization
- Climate change and permafrost
University of Southern California
2022-2024
We describe a method to calibrate Software-Defined Radar (SDRadar) system mounted on an uncrewed aerial vehicle (UAV) with ultra-wideband (UWB) waveform operated in the near-field region. calibration is prerequisite for using full capabilities of radar retrieve geophysical parameters accurately. introduce framework and process SDRadar UWB 675 MHz–3 GHz range Furthermore, we present computing cross section (RCS) external passive target, trihedral corner reflector (CR), HFSS software...
Surface-to-depth profiles of soil moisture are among the most important Earth system variables due to their strong influence on partitioning water cycle [1] . Yet, our directly observed knowledge these profiles, sometimes also referred as root-zone (RZSM) is quite limited. Soil often exhibits rapid spatial and temporal dynamics can change significantly over a short time. For example, during monsoon season in US Southwest, there may be significant sudden precipitation localized cells.
A dual-polarized ultrawideband antenna for a software-defined radar (SDRadar) mounted on an unmanned aerial vehicle (UAV) with various modes of operations is proposed. The consists two perpendicularly combined double slot Vivaldi antennas (DSVA) to achieve reasonable gain over wide bandwidth and compact enough meet the UAV payload size requirement. An operating in range 0.25 − 2.5 GHz designed ready fabrication. simulated reflection coefficients shown be better than −10 dB within design...
Monitoring soil moisture enables detailed understandings of its role in the water cycle and how it is affected by climate change. Multiple airborne spaceborne missions have been dedicated to estimating moisture, including Soil Moisture Active Passive (SMAP) [1] , Ocean Salinity (SMOS) [2] Airborne Microwave Observatory Subcanopy Subsurface (AirMOSS) [3] . Some other remote sensing added retrievals along with their primary goal. For instance, objective Cyclone Global Navigation Satellite...