Results 251 to 260 of about 1,123,715 (301)
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Polyphase Coding for Weather Radars
IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium, 2020In this paper, we describe the evolution of a pair of polyphase coded waveform for use in second trip suppression in a weather radar. The polyphase codes were designed and tested on NASA weather radar. The NASA dual frequency, dual polarization Doppler radar (D3R) was developed primarily as a ground validation tool for the GPM satellite dual frequency ...
Mohit Kumar 0005 +2 more
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Polarimetric FMCW weather radar
2015 23nd Signal Processing and Communications Applications Conference (SIU), 2015This study which was conducted as a Master's thesis, is a radar system working at X band. In this system, a 2 Watt continuous electromagnetic wave which is modulated with frequency ramp of 30 MHz bandwidth is generated and radiated through TX antenna. The scattered signal from the hydrometeors is multiplied with the transmitted one and beat signal is ...
Salih Coskun +3 more
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IGARSS 2008 - 2008 IEEE International Geoscience and Remote Sensing Symposium, 2008
The Engineering Research Center for Collaborative Adaptive Sensing of the Atmosphere (CASA) is investigating the use of dense networks of short-range radars for weather sensing. A first test-bed of this new paradigm is currently deployed in southwest Oklahoma.
Francesc Junyent, V. Chandrasekar 0001
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The Engineering Research Center for Collaborative Adaptive Sensing of the Atmosphere (CASA) is investigating the use of dense networks of short-range radars for weather sensing. A first test-bed of this new paradigm is currently deployed in southwest Oklahoma.
Francesc Junyent, V. Chandrasekar 0001
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Journal of Navigation, 1948
AbstractThe paper is divided into two parts.Part 1, under the heading of Non-standard Propagation, concerns variations in the apparent performance of marine navigational radar in its use for detecting shipping and land targets. The effects of changes in the density of the lower layers of the atmosphere on radar transmissions, their distortion of radar ...
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AbstractThe paper is divided into two parts.Part 1, under the heading of Non-standard Propagation, concerns variations in the apparent performance of marine navigational radar in its use for detecting shipping and land targets. The effects of changes in the density of the lower layers of the atmosphere on radar transmissions, their distortion of radar ...
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Journal of Meteorology, 1945
Abstract In this paper a brief discussion of the use of radar in meteorology is presented. The appearance of various weather phenomena on radar scopes is described and a number of radar photographs of thunderstorms, cold fronts and typhoons is included.
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Abstract In this paper a brief discussion of the use of radar in meteorology is presented. The appearance of various weather phenomena on radar scopes is described and a number of radar photographs of thunderstorms, cold fronts and typhoons is included.
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UAV-Aided Weather Radar Calibration
IEEE Transactions on Geoscience and Remote Sensing, 2019Weather radar is well recognized as an effective sensor for obtaining the microphysical and dynamical properties of precipitation at high spatial and temporal resolution. Radar calibration is one of the most important prerequisites for achieving accurate observations.
Jiapeng Yin +5 more
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Proceedings of the IEEE, 1979
The Doppler weather radar and its signals are examined from elementary considerations to show the origin and development of useful weather echo properties such as signal-to-noise ratio (SNR), range correlation, signal statistics, etc. We present a form of the weather radar equation which explicitly shows the echo power loss due to finite receiver ...
D S Zrnic
exaly +2 more sources
The Doppler weather radar and its signals are examined from elementary considerations to show the origin and development of useful weather echo properties such as signal-to-noise ratio (SNR), range correlation, signal statistics, etc. We present a form of the weather radar equation which explicitly shows the echo power loss due to finite receiver ...
D S Zrnic
exaly +2 more sources
Physics Today, 2015
Dual-polarization radar promises to improve the modeling of convective storms. Dual-polarization radar promises to improve the modeling of convective storms.
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Dual-polarization radar promises to improve the modeling of convective storms. Dual-polarization radar promises to improve the modeling of convective storms.
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1955
Publisher Summary Radars using a wavelength of the order of 10 cm can detect rain to ranges of 200 miles or more, and snow to somewhat shorter ranges. At 10 cm wavelength, the scattering of the radiation by the precipitation, which is the basis of this detection, does not weaken the beam appreciably such that the detection of rain at long range is ...
J.S. Marshall +2 more
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Publisher Summary Radars using a wavelength of the order of 10 cm can detect rain to ranges of 200 miles or more, and snow to somewhat shorter ranges. At 10 cm wavelength, the scattering of the radiation by the precipitation, which is the basis of this detection, does not weaken the beam appreciably such that the detection of rain at long range is ...
J.S. Marshall +2 more
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2020 IEEE Radar Conference (RadarConf20), 2020
Modern ground-based weather radars are mostly dual-polarized, and they are rich in information content in multiple dimensions, and are ideal candidates for effective artificial intelligence (AI) applications. There are a large number of dual-polarization radars around the world.
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Modern ground-based weather radars are mostly dual-polarized, and they are rich in information content in multiple dimensions, and are ideal candidates for effective artificial intelligence (AI) applications. There are a large number of dual-polarization radars around the world.
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