Study on the Detectability of the Sky-Surface Wave Hybrid Radar
Journal of Applied Mathematics, 2014 Working in the HF (high-frequency) band and the transmitter and receiver locating separately, the sky-surface wave hybrid radar both has the capabilities of the OTHR (over-the-horizon radar) and the advantage of the bistatic radar. As the electromagnetic
Hou Chengyu +3 more
doaj +1 more source
Satellite Traces: Ionogram Signatures of Bottom‐Side Upwelling Structures ‐ A Simulation Study
Geophysical Research Letters, Volume 52, Issue 7, 16 April 2025.Abstract Satellite Traces (STs) are the important ionogram signatures for the presence of upwellings in the bottom‐side ionosphere, which provide the necessary seed perturbation for the development of equatorial plasma bubbles (EPBs). In this study, a virtual ionosonde experiment is simulated to investigate the various ST signatures under the presence ...
M. Ankita +6 more
wiley +1 more source
Electron Beams Generated by the Electron Kelvin‐Helmholtz Instability at a Quasi‐Perpendicular Shock
Geophysical Research Letters, Volume 52, Issue 5, 16 March 2025.Abstract Electron beams are considered to be important free energy sources for the excitation of various plasma waves at quasi‐perpendicular shocks. In this article, we perform a two‐dimensional particle‐in‐cell simulation of a low‐plasma‐β quasi‐perpendicular shock.
Ao Guo +4 more
wiley +1 more source
Statistical Characteristics of Nighttime ULF Waves Observed on the Surface of Mars by InSight
Journal of Geophysical Research: Space Physics, Volume 130, Issue 3, March 2025.Abstract Interior Exploration using Seismic Investigations, Geodesy and Heat Transport (InSight) Fluxgate Magnetometer returned data from the Martian surface throughout the course of the InSight mission, between November 2018 and May 2022. Ultra‐low frequency (ULF) electromagnetic waves are commonly observed by InSight during nighttime hours.
K. Webster, Y. Ma, S. Joy, P. J. Chi
wiley +1 more source
Comparative Analysis of Performance for Optimization‐Based Transionospheric SAR Autofocus
Radio Science, Volume 60, Issue 2, February 2025.Abstract For a spaceborne synthetic aperture radar (SAR) operating on low frequencies (such as P‐band), turbulence in the Earth's ionosphere may cause significant phase perturbations of the interrogating signals. These perturbations depend on both the antenna and target coordinates and may lead to substantial image distortions. In our previous work, we
Mikhail Gilman, Semyon Tsynkov
wiley +1 more source
Aperture-Dependent Injection of Ionospheric Perturbations Into Simulated SAR Data [PDF]
This letter presents an algorithm for the introduction of ionospheric disturbances into synthetic aperture radar (SAR) simulations in an aperture-dependent manner using subapertures.
Betancourt-Payan, Felipe +3 more
core +1 more source
High-latitude over-the-horizon radar applications [PDF]
, 2020 Dissertation (Ph.D.) University of Alaska Fairbanks, 2020Over-the-horizon radar (OTHR) systems that operate at high-latitudes often must contend with multipath and pronounced diffusive scattering effects produced by the anisotropic, birefringent, and ...
Theurer, Timothy E.
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An integrated maritime surveillance system based on high-frequency surface-wave radars, Part 1: Theoretical background and numerical simulations [PDF]
, 2001 In this two-part paper, an integrated maritime surveillance (IMS) system, based on high-frequency surface-wave radars (HFSWR), is described. IMS provides low-cost, 24-hour, real-time, over-the-horizon surveillance of large ocean areas, out to the 200 ...
Ponsford, A, Sevgi, L, Chan, HC
core +1 more source
Radar Space-Time Processing for Range-Folded Spread-Doppler Clutter Mitigation [PDF]
, 2011 Pulsed radars have an ambiguous relationship between range and velocity which is proportional to the pulse repetition frequency (PRF), leading to potential tradeoffs.
Lee, William Weiham
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Simulation of ionospheric effects and their mitigation for the ESA BIOMASS P-band space-based radar [PDF]
, 2011 The European Space Agency (ESA) is conducting Phase A studies of a 435 MHz low-earth orbiting polarimetric synthetic aperture radar (SAR) called BIOMASS.
Quegan, Shaun, Rogers, Neil
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