Detecting ionospheric TEC perturbations caused by natural hazards using a global network of GPS receivers: The Tohoku case study [PDF]
, 2012 Recent advances in GPS data processing have demonstrated that ground-based GPS receivers are capable of detecting ionospheric TEC perturbations caused by surface-generated Rayleigh, acoustic and gravity waves.
A. J. Mannucci +8 more
core +2 more sources
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
Order estimation and discrimination between stationary and time-varying (TVAR) autoregressive models [PDF]
, 2007 Copyright © 2007 IEEEFor a set of T independent observations of the same N-variate correlated Gaussian process, we derive a method of estimating the order of an autoregressive (AR) model of this process, regardless of its stationary or time-varying ...
Abramovich, Yuri +2 more
core +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
Ionospheric effects on synthetic aperture radar (SAR) clutter statistics
IET Radar, Sonar & Navigation, 2013 Low‐frequency space‐based synthetic aperture radar (SAR) is an ideal sensor for measuring forest biomass, but can suffer from ionospheric effects. The variation in total electron content (TEC), originating from ionospheric turbulence, causes the along track point spread function (PSF) to degrade in a manner which depends on ...
David P. Belcher, Paul S. Cannon
openaire +1 more source
Remote sensing of earth terrain [PDF]
A mathematically rigorous and fully polarimetric radar clutter model used to evaluate the radar backscatter from various types of terrain clutter such as forested areas, vegetation canopies, snow covered terrains, or ice fields is presented.
Kong, J. A.
core +8 more sources
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
Ionospheric Clutter Model for HF Sky-Wave Path Propagation with an FMCW Source
International Journal of Antennas and Propagation, 2019 A theoretical model of the sky-wave path propagation with frequency modulated continuous wave (FMCW) source for high frequency (HF) radar is proposed in this paper.
Xuguang Yang +3 more
doaj +1 more source
First Order Sea Clutter Cross Section for HF Hybrid Sky-Surface Wave Radar [PDF]
, 2014 This paper presents a modified method to simulate the first order sea clutter cross section for high frequency (HF) hybrid sky-surface wave radar, based on the existent model applied in the bistatic HF surface wave radar.
Li, Y.J., Wei, Y.S., Zhu, Y.P.
core +1 more source
Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.Abstract Parker Solar Probe has been proven as instrumental for the observation of young solar wind. During the encounters E‐07 and E‐08, PSP recorded the core plus beaming protons crossing the heliospheric current Sheet region. When the observed PSP data is plotted in the temperature ratio versus parallel beta space, it is found that the occurrence ...
M. Rashid +10 more
wiley +1 more source