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The first phased array radar dedicated to weather observation and analysis is now instrumented with eight, simultaneous digital receivers. The addition of these additional channels will enable the use of advanced signal processing to improve signal/clutter in an adaptive mode. Elimination of strong point and ground clutter returns from the low-level, volumetrically distributed weather cell returns...
This paper describes the beginning states of a new project that will digitize radar signals coming from eight channels on the phased array antenna at the National Weather Radar Testbed (NWRT) in Norman, Oklahoma. At the current time, a single-channel digital receiver is operational to mimic the current capability. The multi-channel digital data will foster a new generation of adaptive/fast scanning...
The National Weather Radar Testbed (NWRT) system is based on WSR-88D technology enhanced with the significant capability of a phased array antenna. The agile beam capability provides a unique and powerful tool to focus weather radar asset on observation of severe weather phenomena including structures that lead to formation of these storms. The NWRT system has demonstrated the ability to provide weather...
The research WSR-88D (weather surveillance radar) locally operated by the National Severe Storm Laboratory (NSSL) in Norman has the unique capability of collecting massive volumes of Level I time series data over many hours which provides a rich environment for evaluating our new post-processing algorithms. In this work, a Support Vector Machine (SVM) classifier is employed to identify tornado vortices...
Remote sensing radar has shown to be an important tool to observe severe and hazardous weather and to provide operational forecasters prompt information of such rapidly evolving phenomena. Although the history of tornado measurements is long, there have been only a few successes in obtaining spectral signatures. This is largely because neither the technology to process spectra nor the technology to...
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