A5055723799- Precipitation Measurement and Analysis
- Soil Moisture and Remote Sensing
- Radio Wave Propagation Studies
- Meteorological Phenomena and Simulations
- Radar Systems and Signal Processing
- Radio Astronomy Observations and Technology
- Underwater Acoustics Research
- Electromagnetic Compatibility and Measurements
University of Oklahoma
2015-2020
Radar (United States)
2016-2020
Future weather radar systems will need to provide rapid updates within a flexible multifunctional overall network. This naturally leads the use of electronically scanned phased array antennas. However, traditional multifaced planar antenna approaches suffer from having radiation patterns that are variant in both beam shape and polarization as function electronic scan angle; even with practically challenging angle-dependent correction, this places limitations on how accurately can be...
Abstract Mobile radar platforms designed for observation of severe local storms have consistently pushed the boundaries spatial and temporal resolution in order to allow detailed analysis storm structure evolution. Digital beamforming, or imaging, is a technique that similar nature photograwphic camera, where data samples from different spaces at same range are collected simultaneously. This allows rapid volumetric update rates compared radars scan with single narrow beam. The Atmospheric...
Practical and accurate estimation of 3-D wind fields is an ongoing challenge in radar meteorology. Multistatic (single transmitter/multiple receivers) architectures offer a cost-effective solution for obtaining the multiple Doppler measurements necessary to achieve such estimates. Existing multistatic weather radars, while less costly than comparable monostatic networks, have been constrained by need specialized equipment software perform frequency pulse timing synchronization with...
Multistatic radar is a promising option for the low-cost collection of multiple-Doppler weather observations. However, due to use low-directivity antennas at receivers in these systems, they typically suffer from extremely high two-way sidelobe levels compared monostatic radars. Doppler velocity estimation biases induced by contamination have proved be significant obstacle more widespread adoption this technology. It has been noted existing literature that technique whitening, first...
Passive weather radar offers a means of obtaining 3-dimensional wind field measurements by augmenting existing installations with spatially distributed receive modules. Previous multistatic networks have relied on GPS-disciplined oscillators and communications infrastructure between the transmit sites. This paper describes implementation system that instead uses direct path signal from transmitting in order to achieve synchronization. approach reduces cost risk allowing receiving systems be...
Multistatic weather radar systems have previously been explored as a means to obtain highly accurate 3-dimensional wind field retrievals. However, previous implementations of this concept limited by their need for dedicated transmitter and communications infrastructure linking the transmit receive sites. A system is proposed that increases flexibility decreases cost utilizing direct-path signal from process received echoes. Such could be used in conjunction with any coherent operates within...