Results 1 to 10 of about 182,284 (271)

Experimental Analysis of Atmospheric Ducts and Navigation Radar Over-the-Horizon Detection

open access: yesRemote Sensing, 2022
Since the height of sea detection radar antenna and ship targets is relatively low, it is generally believed that its over-the-horizon detection is mainly caused by the evaporation duct at sea.
Li-Feng Huang   +7 more
doaj   +4 more sources

Target Altitude Estimation in Over-the-Horizon Radar [PDF]

open access: yesIEEE Access, 2022
Doppler signatures of local multipath signals provide useful information for target altitude estimation in over-the-horizon radar surveillance. In this paper, we develop a method to improve the resolution of these multipath Doppler signatures and enable ...
Yimin D. Zhang   +2 more
doaj   +3 more sources

A solution for the over-the-horizon-radar simulator [PDF]

open access: yesVojnotehnički 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

An Efficient Multi-Path Multitarget Tracking Algorithm for Over-The-Horizon Radar [PDF]

open access: yesSensors, 2019
In target tracking environments using over-the-horizon radar (OTHR), one target may generate multiple detections through different signal propagation paths.
Yuan Huang, Yifang Shi, Taek Lyul Song
doaj   +2 more sources

HF Radar Signatures and Their Use for Target Classification, Recognition and Identification [PDF]

open access: yesSensors
The challenging goal of equipping HF radars with a target classification ability has been pursued for many years, yet no satisfactory system-level methodology has been reported.
Stuart Anderson
doaj   +2 more sources

Impacts of Auroral Precipitation on HF Propagation: A Hypothetical Over‐the‐Horizon Radar Case Study

open access: yesSpace 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

Direction Finding Techniques for Over‐the‐Horizon Radars

open access: yesIET Radar, Sonar & Navigation
There is no ultimate intelligence‐gathering discipline. Intelligence products almost always require multiple sources for further analytical processing.
M. Pacek   +3 more
doaj   +2 more sources

A study of microwave over-sea propagation with high-potential x-band doppler radar [PDF]

open access: yesРадиофизика и электроника, 2021
Subject and Purpose. The paper is devoted to the microwave propagation over the sea in the nearshore region. Emphasis is on microwave attenuation measurements in the semi-shade and deep-shade areas with a view to study conditions of the microwave ...
V.M. Gorobets’   +2 more
doaj   +1 more source

A Comparison of the Barrick and Backscatter Ionogram Methods of Calculating Sea Surface Backscatter Coefficients

open access: yesRemote Sensing, 2022
An understanding of land and sea surface backscatter coefficients at high frequencies (HF) is required to accurately assess ionospheric propagation conditions for over-the-horizon radar.
Danielle Edwards   +2 more
doaj   +1 more source

ECOLOGICALLY SAFE OVER THE HORIZON METER WAVELENGTH RADAR FOR TERRITORIAL WATERS GUARD [PDF]

open access: yesRadio Physics and Radio Astronomy, 2023
Subject and Purpose. Without regard to successes attained in the field of monitoring of territorial formations frontier areas and environment the problem of territorial waters guard and control of economic zone is as well as before actual for many states,
I. M. Mytsenko, A. N. Roenko
doaj   +1 more source

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