Quality Control for Ocean Current Measurement Using High-Frequency Direction-Finding Radar
Remote Sensing, 2023 High-frequency radars (HFRs) are important for remote sensing of the marine environment due to their ability to provide real-time, wide-coverage, and high-resolution measurements of the ocean surface current, wave height, and wind speed.
Shuqin He +6 more
doaj +1 more source
Fast comparison of IS radar code sequences for lag profile inversion [PDF]
Annales Geophysicae, 2008 A fast method for theoretically comparing the posteriori variances produced by different phase code sequences in incoherent scatter radar (ISR) experiments is introduced.
M. S. Lehtinen +2 more
doaj +1 more source
Modeling and Simulation Challenges in Wide Ocean Area Surveillance
IEEE Access, 2019 Wide ocean area surveillance using high frequency surface wave radar(s) is discussed in this paper. Theoretical and practical issues and problems are reviewed.
Levent Sevgi
doaj +1 more source
An Orthogonal Projection Algorithm to Suppress Interference in High-Frequency Surface Wave Radar
Remote Sensing, 2018 High-frequency surface wave radar (HFSWR) has been widely applied in sea-state monitoring, and its performance is known to suffer from various unwanted interferences and clutters.
Zezong Chen, Fei Xie, Chen Zhao, Chao He
doaj +1 more source
Application of polarization ellipse technique for analysis of ULF magnetic fields from two distant stations in Koyna-Warna seismoactive region, West India [PDF]
Natural Hazards and Earth System Sciences, 2010 A new approach is developed to find the source azimuth of the ultra low frequency (ULF) electromagnetic (EM) signals believed to be emanating from well defined seismic zone.
F. Dudkin +5 more
doaj +1 more source
Radio 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
Remote oxygen sensing by ionospheric excitation (ROSIE) [PDF]
, 2009 The principal optical observable emission resulting from ionospheric modification (IM) experiments is the atomic oxygen red line at 630 nm, originating from the O(1D–3P) transition. Because the O(1D) atom has a long radiative lifetime, it is sensitive
Pedersen, T. R. +20 more
core +2 more sources
Assessing GNSS Reflectometry for High‐Latitude 3D Ionospheric Imaging
Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.Abstract This study investigates whether Global Navigation Satellite System Reflectometry (GNSS‐R) measurements from low‐Earth‐orbit (LEO) satellites can improve three‐dimensional (3D) ionospheric electron density imaging, with a focus on high‐latitude regions. Conventional ionospheric tomography is limited by sparse ground‐based receiver coverage over
Brenna Royersmith +2 more
wiley +1 more source
Knowledge-aided Bayesian covariance matrix estimation in compound-Gaussian clutter [PDF]
, 2010 We address the problem of estimating a covariance matrix R using K samples zk whose covariance matrices are kR, where k are random variables. This problem naturally arises in radar applications in the case of compound-Gaussian clutter. In contrast to the
Bandiera, Francesco +6 more
core +1 more source
Ionospheric clutter models for high frequency surface wave radar [PDF]
, 2017 High frequency surface wave radar (HFSWR), operating at frequencies between 3 and 30 MHz, has long been employed as an important ocean remote sensing device.
Chen, Shuyan
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