Results 221 to 230 of about 182,284 (271)
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Over-the-Horizon radar in the HF band
Proceedings of the IEEE, 1974Over-the-horizon (OTH) HF radar using sky-wave propagation via refraction by the ionosphere is capable of detecting targets at distances an order of magnitude greater than conventional microwave radar limited by the line of sight. Some of the characteristics, capabilities, and limitations of OTH radar based on the experience of the MADRE radar as ...
J.M. Headrick, M.I. Skolnik
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Looking over the horizon (HF radar)
IEEE Spectrum, 1990The history of HF (over-the-horizon) radar and its basic principles are outlined. Advances in signal processing that have made HF radar an operational reality are reviewed. Working units that the US Navy and the US Air force have in place, as well as some units under construction are described.
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Detection and Tracking of Multipath Targets in Over-the-Horizon Radar
IEEE Transactions on Aerospace and Electronic Systems, 2019In skywave over-the-horizon radar, the ionosphere often supports multiple propagation paths, and a single target can appear as a family of returns. This paper presents two new tracking approaches for this environment: The first uses measurement fusion, and the second uses group-target track-before-detect algorithm.
Samuel Davey
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Climatological model of over-the-horizon radar (CMOR)
2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS), 2017 Models of radar systems are required for a variety of reasons. The sophistication of these models is highly dependant on their purpose; for instance microwave radar models which are designed to be integrated into existing wargaming simulation frameworks will often be low-fidelity models.
Manuel A. Cervera +2 more
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A Multistatic Over-the-Horizon Radar Simulator
2025 IEEE Radar Conference (RadarConf25)13611366A multistatic Over-the Horizon (OTH) radar network can offer long-range, wide-area early warning for distant threats, such as ballistic and hypersonic missiles.
Svante Björklund +5 more
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Concurrent Operation of Two Over-the-Horizon Radars
IEEE Journal of Selected Topics in Signal Processing, 2007By exploiting the reflective and refractive nature of high-frequency (HF) radiowave propagation through the ionosphere or the conducting sea surface, over-the-horizon radar (OTHR) systems perform wide-area surveillance at long range well beyond the limit of the horizon of conventional line-of-sight (LOS) radars.
Yimin Zhang 0001 +2 more
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Multitarget Tracking Using Over-the-Horizon Radar
2018 21st International Conference on Information Fusion (FUSION), 2018Most conventional multitarget tracking systems assume that in each scan there is at most one measurement for each target. This assumption is, however, not valid for over-the-horizon radar (OTHR), where a target can generate multiple measurements through different propagation modes. A typical multitarget tracking algorithm may fail in this system.
Leilei Guo, Jian Lan, X. Rong Li
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Target tracking in over the horizon radar
Signal Processing, Sensor/Information Fusion, and Target Recognition XXVIII, 2019This paper describes the application of the Deep Target Extractor (DTE), developed from the Maximum Likelihood Probabilistic Multiple Hypothesis Tracker (ML-PMHT), to measurements from an over-the-horizon radar (OTHR) observing a highly maneuvering target (HMT).
Finelli A. +4 more
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Skywave over-the-horizon backscatter radar
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559), 2002Skywave over-the-horizon backscatter radar (OTHR) has great potential for detecting such targets as cruise missiles, stealth aircraft, the powered trajectory of ballistic missiles and aircraft carriers over long distances and at the same time. This paper evaluates the detectability of OTHR for small targets through experimental research and emulation ...
null Tang Xiaodong +2 more
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2008 IEEE Radar Conference, 2008
The tutorial provides an introduction to the fundamental principles of high frequency over-the-horizon (OTH) radar, including sky-wave and surface-wave systems as well as other bi-static HF radar architectures. The main challenges of operating in the HF environment are described and connected to motivate and explain the architecture and design of ...
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The tutorial provides an introduction to the fundamental principles of high frequency over-the-horizon (OTH) radar, including sky-wave and surface-wave systems as well as other bi-static HF radar architectures. The main challenges of operating in the HF environment are described and connected to motivate and explain the architecture and design of ...
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