Results 81 to 90 of about 43,924 (217)
Time Delay Estimation from Low Rate Samples: A Union of Subspaces Approach
, 2009 Time delay estimation arises in many applications in which a multipath medium has to be identified from pulses transmitted through the channel. Various approaches have been proposed in the literature to identify time delays introduced by multipath ...
Eldar, Yonina C., Gedalyahu, Kfir
core +3 more sources
Advanced Quantum Technologies, Volume 9, Issue 5, May 2026.ABSTRACT Quantum‐native communication systems are reshaping secure, programmable, and coherence‐aware networking beyond the classical paradigm. As intelligent physical infrastructures, ranging from unmanned aerial vehicle swarms to satellite Quantum Key Distribution (QKD) platforms, demand trust, synchronization, and ultra‐reliability, conventional ...
Shakil Ahmed +2 more
wiley +1 more source
An Efficient Spectral Approach for JCR Narrow Band Signals in Presence of Multipath and Noise
IEEE Open Journal of the Communications SocietyJoint 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
Results of 1987 MSS helicopter propagation experiment at UHF and L band in Central Maryland [PDF]
This effort emphasizes several important results pertaining to a mobile satellite system propagation experiment performed in Central Maryland during June 1987.
Goldhirsh, Julius, Vogel, Wolfhard J.
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Hunga‐Tonga Volcano Plumbing System Inferred From Virtual Seismometer Approach
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.Abstract We present a surface wave tomography application based on event‐pair interferometry to investigate local (∼100 km) mid‐ocean crustal structures, with a particular focus on imaging a potential crustal solidified intrusive complex in a region lacking seismic stations.
Taghi Shirzad +3 more
wiley +1 more source
Analytical investigation of LOS multipath propagation
Electronics Letters, 1987 An improved and comprehensive version of the multipath model suggested by Ruthroff is presented. The model can be used to determine the different ray path parameters and to investigate both the frequency and space selectivity aspects of this phenomenon.
H.M. Rashwan +2 more
openaire +1 more source
Space Weather, Volume 24, Issue 5, May 2026.Abstract Ionospheric scintillation in the Equatorial Ionization Anomaly (EIA) region significantly impacts the performance of Global Navigation Satellite System (GNSS). While scintillation characteristics have been widely studied globally, the evolution of scintillation events remains underexplored.
Zhipeng Wang +5 more
wiley +1 more source
Modified Multi-Mode Target Tracker for High-Frequency Surface Wave Radar
Remote Sensing, 2018 In high-frequency surface wave radar (HFSWR), part of the radiation signal inevitably propagates upward and illuminates the target through the ionosphere due to the poor controllability of the antenna’s vertical pattern.
Mengxiao Zhao, Xin Zhang, Qiang Yang
doaj +1 more source
Polarimetric properties of indoor MIMO channels for different floor levels in a residential house [PDF]
, 2017 This paper analyzes polarimetric characteristics of power delay profiles (PDPs), cross polarization discrimination (XPD), and received power of specular and diffuse multipath components of indoor MIMO radio channels at 2.45 GHz. Measurements were done in
Gaillot, DP +5 more
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