Results 51 to 60 of about 4,630 (180)

Optimized tracking for cooperative sensor systems in multipath environments [PDF]

open access: yesAdvances in Radio Science, 2008
In a cooperative sensor system for pedestrian protection, a pedestrian and other road users exchange data by means of radio frequency communication. In the proposed system, the pedestrian carries a transponder which is interrogated by a vehicle and sends
D. Schwarz, R. H. Rasshofer, E. M. Biebl
doaj  

Interaction Multipath in Through-the-Wall Radar Imaging Based on Compressive Sensing

open access: yesSensors, 2018
Clutters caused by multipath have been widely researched in through-the-wall radar imaging (TWRI). The existing research work of multipath only consider reflections from the wall, while in the condition of a small scene, with the increasing number of ...
Yigeng Ma, Hong Hong, Xiaohua Zhu
doaj   +1 more source

A Novel Target-Height Estimation Approach Using Radar-Wave Multipath Propagation for Automotive Applications [PDF]

open access: yesAdvances in Radio Science, 2017
This paper introduces a novel target height estimation approach using a Frequency Modulation Continuous Wave (FMCW) automotive radar. The presented algorithm takes advantage of radar wave multipath propagation to measure the height of objects in the ...
A. Laribi   +3 more
doaj   +1 more source

MDSC: Unsupervised Multipath Decomposition and Synergistic Correction for Efficient Low‐Light Image Enhancement with Detail‐Aware Smoothing

open access: yesAdvanced Intelligent Systems, Volume 8, Issue 8, August 2026.
This work proposes MDSC, an unsupervised low‐light enhancement framework integrating three core innovations: detail‐aware smoothing, multipath decomposition, and synergistic correction. It suppresses noise, handles rapid illumination variations, and prevents reflectance‐contrast amplification inherent to Retinex separation.
Yong Cheng   +6 more
wiley   +1 more source

Signal Data Stream Parameters Passing Ionospheric Communication Links With Fading Caused by Natural Clutter Phenomena

open access: yesRadio Science, Volume 61, Issue 8, August 2026.
Abstract This paper explores the impact of natural phenomena on signal data transmission across various ionospheric communication channels. The study focuses on three primary phenomena: meteor trails prevalent in the middle‐ and lower‐latitude ionosphere, bubble and plume structures observed around the equatorial ionosphere, and magnetic‐storm‐induced ...
I. Bronfman   +2 more
wiley   +1 more source

Longitudinal Variation of Ionospheric Irregularities and Response of the Ionosphere During 10–13 May and 10–13 October 2024 Geomagnetic Storms

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract We examine the response of the ionosphere to the 10–13 May 2024 and 10–13 October 2024 geomagnetic storms, the two recent great geomagnetic storms of solar cycle 25. We identified the occurrence of ionospheric irregularities during the two geomagnetic storms.
Valence Habyarimana   +7 more
wiley   +1 more source

A Ray-Tracing-Based Single-Site Localization Method for Non-Line-of-Sight Environments

open access: yesSensors
Localization accuracy in non-line-of-sight (NLOS) scenarios is often hindered by the complex nature of multipath propagation. Traditional approaches typically focus on NLOS node identification and error mitigation techniques.
Shuo Hu, Lixin Guo, Zhongyu Liu
doaj   +1 more source

Investigating the Leptokurtotic Nature of Low‐Latitude GNSS Scintillations With a Multiscale Approach

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract We investigate the statistical nature of Global Navigation Satellite System (GNSS) signal fluctuations through the multiscale analysis of a strong scintillation event recorded at the Ionospheric Observatory of the Luigi Broglio Space Center in Malindi, Kenya.
L. Spogli   +5 more
wiley   +1 more source

An Efficient Spectral Approach for JCR Narrow Band Signals in Presence of Multipath and Noise

open access: yesIEEE Open Journal of the Communications Society
Joint Communication Radar (JCR) systems have garnered significant attention due to their ability to simultaneously perform communication and radar sensing tasks.
Salem Titouni   +6 more
doaj   +1 more source

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