Results 21 to 30 of about 230,956 (294)
Simulation of hailstorm event using Mesoscale Model MM5 with modified cloud microphysics scheme [PDF]
Annales Geophysicae, 2008 Mesoscale model MM5 (Version 3.5) with some modifications in the cloud microphysics scheme of Schultz (1995), has been used to simulate two hailstorm events over Gangetic Plain of West Bengal, India. While the first event occurred on 12 March 2003 and
P. Chatterjee, D. Pradhan, U. K. De
doaj +1 more source
Science, 1966 The tropopause has been detected by ultrasensitive, narrow-beam, microwave (10.7-centimeter) and ultrahigh-frequency (71.5-cm) radars. Its reflectivity is consistent with that expected theoretically for a refractively turbulent medium. Indications are that the layer is also mechanically turbulent, and that electromagnetic scatter techniques may be used
D, Atlas +4 more
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Performance Tradeoffs of Joint Radar-Communication Networks
, 2018 This letter considers a network where nodes share a wireless channel to work in turn as pulse radars for target detection and as transmitters for data exchange. Radar detection range and network throughput are studied using stochastic geometry tools.
Munari, Andrea +2 more
core +1 more source
Radar shadow detection in SAR images using DEM and projections
, 2013 Synthetic aperture radar (SAR) images are widely used in target recognition tasks nowadays. In this letter, we propose an automatic approach for radar shadow detection and extraction from SAR images utilizing geometric projections along with the digital ...
Haddad, O., Prasath, V. B. S.
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Periscope detection radar [PDF]
Proceedings International Radar Conference, 2002 The periscope detection problem is described. An advanced simulation model is developed which allows the performance of advanced periscope detection radars to be determined. An advanced system employing three-dimensional filters and distribution-free CFAR is postulated.
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Arthritis Care &Research, Accepted Article.Background Obesity, defined by BMI ≥30kg/m2, is a risk factor for functional limitations in people with knee osteoarthritis (OA). However, function varies among such individuals. Our objective was to evaluate the implications of obesity subtypes on longitudinal patterns of physical functioning in people with or at risk for knee OA.
Kristine Godziuk +6 more
wiley +1 more source
Broadband Low-RCS Linearly Polarized Metasurface–Based Antenna
International Journal of Antennas and PropagationIn this paper, a broadband linearly polarized (LP) metasurface (MS)–based antenna with low radar cross section (RCS) over a wideband is proposed. The radiation and scattering mechanisms of the antenna are analyzed under the guidance of characteristic ...
Jinhong Luo +5 more
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Design of Low-SAR High-Efficiency Terminal Antenna Using Magnetic Field Homogenization
MicromachinesA low-SAR high-efficiency terminal antenna based on the magnetic field homogenization is proposed in this paper. Starting from the spatial correlation between the antenna’s near-field tangential magnetic field hotspots and SAR distribution, the influence
Sihan Xiao +4 more
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Electronics Letters, 1985 In the letter a new adaptive procedure for the detection of a radar target in clutter is described. The procedure is based on the development of linear models for the two hypotheses H0 and H1. Under hypothesis H0, there is no target present, and the received signal is modelled as a regressive process.
Qi-Tu Zwang, S. Haykin
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Radar Target Detection with CNN
2021 29th European Signal Processing Conference (EUSIPCO), 2021 Target detection is a fundamental radar application that is traditionally carried out by Constant False Alarm Rate (CFAR) detectors. This paper proposes a Convolutional Neural Network (CNN) based detector (RadCNN) to replace the standard CFAR detectors for a typical pulsed Doppler radar.
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