Impact of Plasma Bubbles on OTHR Shortwave Propagation in Different Backgrounds [PDF]
Remote SensingPlasma bubbles represent notable ionospheric irregularities primarily observed in low latitudes, characterized by plasma depletions exhibiting large spatial scales, which can make a significant impact on the propagation of OTHR (over-the-horizon radar ...
Xin Ma, P Guo, Mengjie Wu
exaly +6 more sources
OTHR Spectrum Reconstruction of Maneuvering Target with Compressive Sensing [PDF]
International Journal of Antennas and Propagation, 2014 High-frequency (HF) over-the-horizon radar (OTHR) works in a very complicated electromagnetic environment. It usually suffers performance degradation caused by transient interference.
Yinghui Quan +4 more
doaj +4 more sources
Transient Interference Excision and Spectrum Reconstruction with Partial Samples Using Modified Alternating Direction Method of Multipliers-Net for the Over-the-Horizon Radar [PDF]
SensorsTransient interference often submerges the actual targets when employing over-the-horizon radar (OTHR) to detect targets. In addition, modern OTHR needs to carry out multi-target detection from sea to air, resulting in the sparse sampling of echo data ...
Zhang Man, Quan Huang, Jia Duan
doaj +3 more sources
OTHR-09 EPIDEMIOLOGY OF BRAIN TUMORS IN ZIMBABWE [PDF]
Neurooncol AdvAbstract OBJECTIVE Brain tumors, while rare, cause significant morbidity and mortality across all ages. This study was done to help understand the age and sex distribution of the common brain cancers diagnosed in Zimbabwe.
Chingonzo, Kuzivakwashe +3 more
europepmc +3 more sources
Adaptive processing method for interference cancellation in sky‐wave OTHR [PDF]
Journal of Engineering, 2019 An algorithm is proposed to cancel the spatially non-stationary high-frequency (HF) interference in the returns of sky-wave over-the-horizon radar (OTHR).
Junhao Xie
exaly +4 more sources
A solution for the over-the-horizon-radar simulator [PDF]
Vojnotehnički Glasnik, 2020 Introduction/purpose: The OTHR simulator presented in this paper is developed and used in practice, with the aim of emulating radar signal environment, but also optimizing the radar parameters in real applications such as: radiated power, antenna ...
Bojan R. Džolić +4 more
doaj +2 more sources
Impacts of Auroral Precipitation on HF Propagation: A Hypothetical Over‐the‐Horizon Radar Case Study [PDF]
Space Weather, 2021 Over‐the‐horizon radar (OTHR) systems operating in the high‐frequency (HF) band (3–30 MHz) are unique in their ability to detect targets at extreme ranges, offering cost‐effective large‐area surveillance. Due to their reliance on the reflective nature of
Joshua J. Ruck, David R. Themens
doaj +2 more sources
Experimental Study on Shortwave Communication and OTHR Integrated System Based on OFDM Waveform
Leida xuebao, 2012 Based on the recently developed active-passive multifunctional all-digital HF surface wave radar hardware platform of Wuhan University, an experiment study of integrated technology for shortwave communication and Over-The-Horizon Radar (OTHR) application
Shao Qi-hong +4 more
doaj +2 more sources
, 2021 High frequency Over-the-Horizon Radars (OTHR)provide an economical means to detect and track non-cooperativeair targets over large expanses of land and sea.
Alan J Stocker (9875672) +3 more
core +3 more sources
Testing RFoF Link for Transmitting HF-OTHR Signal Between Transmitter and Receiver Shelters [PDF]
Telfor Journal, 2021 HF-OTHR site contains two equipment shelters, up to 1 km away from each other, that need to be connected for transmitting a FMCW signal. This connection, if realized using a coaxial cable, has shown itself to be vulnerable to external electromagnetic ...
P. Petrović +6 more
doaj +2 more sources