Engineering topics
Publications and source records attributed to Im, E..
The Cloud Profiling Radar, the primary science instrument of the CloudSat Mission, is a 94-GHz nadir-looking radar that measures the power backscattered by clouds as a function of distance from the radar.
In this paper we will present the results of the trade studies on the performances of a spaceborne Doppler radar in measuring vertical rainfall velocity.
The current Geostationary Operational Environmental Satellites (GOES) are eqipped to make cloud top measurements only. In contrast, a millimeter-wave radar allows 3-D measurements of precipitation associated with hurricanes and other convective systems. It also provides important inputs for numerical weather prediction models for improving the accuracy of weather nowcasting and forecasting.
A spectral difference method is used to quantify the magnitude and extent of radio-frequency interference (RFI) observed over the U.S. in the Aqua AMSR-E radiometer channels.
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In this paper, the technology development status on this Advanced Precipitation Radar Antenna will be presented.
The current Geostationary Operational Environmental Satellites (GOES) are equipped to make cloud top measurements only. In contrast, a millimeter-wave radar allows 3-D measurements of precipitation associated with hurricanes and other convective systems. It also provides important inputs to numerical weather prediction models for improving the accuracy in weather nowcasting and forecasting.
In this paper, we will cover our recent progress in developing and testing one particular aspect of the PR-2 design - the electronic on-board processor/controller module.
The Next-Generation Precipitation Radar (PR-2) prototyped by NASA/JPL will depend heavily on high-performance digital processing to collect meaningful echo data.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
In this paper an in-depth analysis on the performance of the Fourier analysis in estimating the first spectral moment of Doppler spectra of rain signals from a spaceborne radar is presented.