Results 21 to 30 of about 31,060 (259)

Assessment of Satellite-Based Rainfall Products Using a X-Band Rain Radar Network in the Complex Terrain of the Ecuadorian Andes

open access: yesAtmosphere, 2021
Ground based rainfall information is hardly available in most high mountain areas of the world due to the remoteness and complex topography. Thus, proper understanding of spatio-temporal rainfall dynamics still remains a challenge in those areas ...
Nazli Turini   +7 more
doaj   +1 more source

Dynamic Radar Networks of UAVs: A Tutorial Overview and Tracking Performance Comparison With Terrestrial Radar Networks [PDF]

open access: yesIEEE Vehicular Technology Magazine, 2020
In the coming years, low aerial space will be crowded with unmanned aerial vehicles (UAVs) providing various services. In this context, an emerging problem is to detect and track unauthorized or malicious mini/microUAVs. In contrast to current solutions mainly based on fixed terrestrial radars, this tutorial puts forth the idea of a dynamic radar ...
Anna Guerra   +2 more
openaire   +2 more sources

Study on Attenuation Correction for the Reflectivity of X-Band Dual-Polarization Phased-Array Weather Radar Based on a Network with S-Band Weather Radar

open access: yesRemote Sensing, 2023
X-band dual-polarization phased-array weather radars (X-PARs) have been used in South China extensively. Eliminating the attenuation and system bias of X-band radar data is the key to utilizing the advantage of X-PAR networks.
Fei Geng, Liping Liu
doaj   +1 more source

Radar and Sonar Sensor Networks

open access: yesEURASIP Journal on Wireless Communications and Networking, 2010
1Department of Electrical Engineering, University of Texas at Arlington, Arlington, TX 76019-0016, USA 2Department of Computer Science, The George Washington University, Washington, DC 20052, USA 3Department of Electrical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan 4Air Force Research Laboratory/RHX, Brooks City Base, San Antonio,
Qilian Liang   +5 more
openaire   +3 more sources

Reconstruction of Three-Dimensional Images Based on Estimation of Spinning Target Parameters in Radar Network

open access: yesRemote Sensing, 2018
A high-resolution three-dimensional (3D) image reconstruction method for a spinning target is proposed in this paper and the anisotropy is overcome by fusing different observation information acquired from the radar network.
Xiao-wen Liu   +4 more
doaj   +1 more source

Calculation of Diffraction Field Using Incremental Theory of Diffraction for Observation Points Outside the Keller Cone [PDF]

open access: yesJournal of Electromagnetic Engineering and Science
This letter presents an enhanced diffracted electromagnetic field calculation approach that addresses the critical limitations of conventional methods. Since traditional techniques, such as geometrical theory of diffraction, uniform theory of diffraction,
Haeseung Lee   +3 more
doaj   +1 more source

Analysis of a Low-Earth Orbit Satellite Downlink Considering Antenna Radiation Patterns and Space Environment in Interference Situations

open access: yesRemote Sensing, 2023
This paper investigates a low-Earth orbit (LEO) satellite downlink for high-speed data communication in interference situations. A choke ring horn type antenna is used as the data transmitting antenna with an isoflux pattern in the LEO satellite, which ...
Eunjung Kang   +6 more
doaj   +1 more source

24 GHz radar sensors for automotive applications

open access: yesJournal of Telecommunications and Information Technology, 2001
Automotive radar systems using integrated 24 GHz radar sensor techniques are currently under development [1]. This paper describes a radar network consisting of four sensors distributed behind the front bumper of an experimental car.
Michael Klotz, Hermann Rohling
doaj   +1 more source

Curvilinear Flight Synthetic Aperture Radar (CF-SAR): Principles, Methods, Applications, Challenges and Trends

open access: yesRemote Sensing, 2022
The research into curvilinear flight synthetic aperture radar (CF-SAR) is the inevitable result of the comprehensive practicality of SAR. The flight path of the SAR platform in real applications, which is highly nonlinear or curvy due to three ...
Zhanye Chen   +7 more
doaj   +1 more source

A Three-Dimensional Phantom Track Generation for Radar Network Deception (January 2019)

open access: yesIEEE Access, 2019
One important issue when multiple cooperating electronic combat air vehicles (ECAVs) are used to generate phantom radar tracks in a radar network is the position inaccuracy, which is the fundamental reasons for the difference between a phantom track and ...
Xiang Liu, Dongsheng Li
doaj   +1 more source

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