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Space Surveillance with High-Frequency Radar [PDF]
High-Frequency (HF) radar is well suited to the surveillance of low-earth-orbit space. For large targets, a small deployable HF radar is able to match the detection performance of much larger space surveillance radar systems operating at higher ...
Brendan Hennessy +8 more
doaj +5 more sources
The Global High Frequency Radar Network [PDF]
Academic, government, and private organizations from around the globe have established High Frequency radar (hereinafter, HFR) networks at regional or national levels.
Hugh Roarty +31 more
doaj +8 more sources
Tsunami Arrival Detection with High Frequency (HF) Radar [PDF]
Quantitative real-time observations of a tsunami have been limited to deep-water, pressure-sensor observations of changes in the sea surface elevation and observations of sea level fluctuations at the coast, which are essentially point measurements ...
Donald Barrick +3 more
doaj +2 more sources
Susceptibility of Commercial-Off-The-Shelf Sensors to IEMI using Pulse Modulated Signals [PDF]
The use of sensors has grown dramatically in recent years and many devices rely on the information they provide. The lack of proper security mechanisms available to control the use of sensors and the high degree of integration make them more vulnerable ...
L. Cesbron Lavau +3 more
doaj +1 more source
A high gain vertically polarised travelling‐wave frequency scanning array antenna fed by a meander rectangular waveguide is presented for Ku‐band operation.
Taher Badawy +3 more
doaj +1 more source
Applications of high‐frequency radar [PDF]
Efforts to extend radar range by an order of magnitude with use of the ionosphere as a virtual mirror started after the end of World War II. A number of HF radar programs were pursued, with long‐range nuclear burst and missile launch detection demonstrated by 1956.
J. M. Headrick, J. F. Thomason
openaire +1 more source
Effects of Movement for High Time-Bandwidths in Batched Pulse Compression Range-Doppler Radar
Radar detection and track building performance is an essential part of a radar system. A high realized coherent integration gain often contributes to an improved performance.
Dominik Bok +2 more
doaj +1 more source
Passive radar is a technology that has huge potential for airspace monitoring, taking advantage of existing transmissions. However, to predict whether particular targets can be measured in a particular scenario, it is necessary to be able to model the ...
Peter J. Speirs +8 more
doaj +1 more source
Coastal high-frequency radars in the Mediterranean
Due to the semi-enclosed nature of the Mediterranean Sea, natural disasters and anthropogenic activities impose stronger pressures on its coastal ecosystems than in any other sea of the world. With the aim of responding adequately to science priorities and societal challenges, littoral waters must be effectively monitored with high-frequency radar (HFR)
Lorente, Pablo +10 more
+6 more sources
MOBILE MAPPING BY FMCW SYNTHETIC APERTURE RADAR OPERATING AT 300 GHZ [PDF]
While optical cameras or laser systems are widely used for mobile mapping low attention was payed for radar systems. Due to new semiconductor technologies, compact and leight weight SAR systems based on the Frequency Modulated Continuous Wave (FMCW ...
S. Palm +5 more
doaj +1 more source

