Results 31 to 40 of about 438 (173)

Experimental Research of HF Passive Radar Based on DRM Digital AM Broadcasting [PDF]

open access: yesLeida xuebao, 2012
This paper gives the experimental research of HF Passive Bistatic Radar (HFPBR) based on Digital Radio Mondiale (DRM) digital AM broadcasting that have been first carried out in China, using the newly-developed all-digital active/passive integrated HF ...
Wan Xian-rong   +5 more
doaj   +1 more source

Deformation Estimation Using Beidou GEO-Satellite-Based Reflectometry

open access: yesRemote Sensing, 2021
Deformation monitoring has been brought to the fore and extensively studied in recent years. Global Navigation Satellite System Reflectometry (GNSS-R) techniques have so far been developed in deformation estimation applications, which however, are ...
Yongqian Chen, Songhua Yan, Jianya Gong
doaj   +1 more source

Analysis of Bistatic Ground Clutter and Applications to Target Plotting [PDF]

open access: yesRadioengineering, 2018
This article presents analysis and parametrization of the bistatic ground clutter which is important from the point of view of the modelling/generating of bistatic clutter, and subsequent developing of the new suppression techniques.
J. Pidanic, K. Juryca, A. M. Kumar
doaj  

Experimental Research on Micro-Doppler Effect of Multi-rotor Drone with Digital Television Based Passive Radar

open access: yesLeida xuebao, 2018
In this paper, experimental results of micro-Doppler effect on a multi-rotor drone with digital television based passive radar are discussed. First, the bistatic passive radar micro-motion model of the drone is established.
Liu Yuqi   +5 more
doaj   +1 more source

Using Particle Filter for Estimating Velocity of Maneuvering Target Being Tracked by Passive Radar

open access: yesSyrian Journal for Science and Innovation
Tracking a target is achieved by estimating its range and velocity, and this process has two types: Bistatic Tracking and Cartesian Tracking. In a passive radar system, the bistatic tracking is achieved by processing the bistatic geometry “One non ...
Anas Almanofi , Ali Kazem
doaj   +1 more source

Near-Space Microwave Radar Remote Sensing: Potentials and Challenge Analysis

open access: yesRemote Sensing, 2010
Near-space, defined as the region between 20 km and 100 km, offers many new capabilities that are not accessible to low earth orbit (LEO) satellites and airplanes, because it is above storm and not constrained by either the orbital mechanics of ...
Qicong Peng, Jingye Cai, Wen-Qin Wang
doaj   +1 more source

Water Electrolysis Technologies for Extraterrestrial Water Resource Conversion

open access: yesEcoEnergy, EarlyView.
This paper reviews four water electrolysis technologies for extraterrestrial water conversion: alkaline water electrolysis, proton exchange membrane water electrolysis, solid oxide water electrolysis, and anion exchange membrane water electrolysis. It elaborates on their mechanisms, components, and integration, highlighting challenges such as water ...
Yawen Jiang   +6 more
wiley   +1 more source

Observations and Analysis of a Tornadic Quasi‐Linear Convective System (QLCS) With Bistatic Weather Radar

open access: yesGeophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract The deployment of a multistatic radar network in the Oklahoma City metropolitan area in Spring 2024 has allowed for unique observations of several severe weather events. This passive multistatic network operates in conjunction with the operational KTLX WSR‐88D, allowing for synchronous multi‐Doppler analyses. This work presents a case study of
Samuel Emmerson   +5 more
wiley   +1 more source

An Active Beam‐Reconfigurable Retrodirective Array

open access: yesNanophotonics, Volume 15, Issue 13, 13 July 2026.
The proposed beam‐reconfigurable retrodirective array not only enables retroreflection toward the signal source but also achieves flexible beam steering via a tunable reflection plate, offering a viable solution for real‐time multipoint communication and multitarget wireless power transfer.
Wen Yue Wei   +5 more
wiley   +1 more source

Efficient Multipath Clutter Cancellation for UAV Monitoring Using DAB Satellite-Based PBR

open access: yesRemote Sensing, 2021
The increasing accessibility of unmanned aerial vehicles (UAVs) drives the demand for reliable, easy-to-deploy surveillance systems to consolidate public security.
Yingjie Miao   +4 more
doaj   +1 more source

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