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2021
High frequency (HF) radars operate at radio frequencies between 3 and 30 MHz, where electromagnetic waves have the ability to propagate along the ocean surface and therefore to obtain information beyond the horizon. All the information measured by a HF radar corresponds to physical parameters of the upper couple of meters of the ocean surface.
Jochen Horstmann, Anna Dzvonkovskaya
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High frequency (HF) radars operate at radio frequencies between 3 and 30 MHz, where electromagnetic waves have the ability to propagate along the ocean surface and therefore to obtain information beyond the horizon. All the information measured by a HF radar corresponds to physical parameters of the upper couple of meters of the ocean surface.
Jochen Horstmann, Anna Dzvonkovskaya
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High-frequency radar simulations
Proceedings of the IEEE Sixth Working Conference on Current Measurement (Cat. No.99CH36331), 1999A simulation of the University of Michigan's Multifrequency Coastal Radar (MCR) has been applied under various scenarios to compare the performance of beam forming and direction finding techniques for bearing determination. The MCR system is a phased array radar that operates at four distinct frequencies in the high frequency (HF) range in order to ...
D.M. Fernandez, K.E. Laws, J.D. Paduan
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High-Frequency Over-the-Horizon Radar in Canada
IEEE Geoscience and Remote Sensing Letters, 2018Over-the-horizon radars (OTHRs) have recently been making a comeback in Canada. As the need for accurate long-range tracking becomes more important, less-expensive ground-based radars are once again being considered for more effective long-range surveillance of Canadian airspace. Ray tracing is a powerful tool and is, especially, useful in applications
Thayananthan Thayaparan +3 more
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High frequency radar astronomy with HAARP
Proceedings of the 2003 IEEE Radar Conference (Cat. No. 03CH37474), 2004At high frequency, radio waves will interact with space plasmas and surfaces of local astronomical objects, producing an echo that can provide new diagnostic data. The availability at high power radars operating at high frequencies opens a window for the remote investigation of our surrounding space environment. We discuss and illustrate this technique
P. Rodriguez, E. Kennedy, P. Kossey
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High Frequency Radar Target Modeling.
1995Abstract : This report contains the theories behind the commonly accepted electromagnetic techniques used for Radar Cross Section (RCS) prediction and enumerates the prevailing computer models which characterize RCS for high-frequency complex targets. (MM)
Fred W. Sedenquist, Virginia C. Monk
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Passive radar in the high frequency band
2008 IEEE Radar Conference, 2008Passive radar systems using emitters of opportunity for target detection and tracking have received significant interest recently, especially those which exploit frequency modulated (FM) radio stations and TV transmitters as signal sources. This paper is concerned with passive radar systems that utilize signal sources in the high frequency (HF) band (3-
Giuseppe Fabrizio +3 more
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High frequency oscillators for chaotic radar
SPIE Proceedings, 2016This work focuses on implementing a class of exactly solvable chaotic oscillators at speeds that allow real world radar applications. The implementation of a chaotic radar using a solvable system has many advantages due to the generation of aperiodic, random-like waveforms with an analytic representation. These advantages include high range resolution,
A. N. Beal +3 more
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Timing Signal Generator for High Frequency Radar
2020 IEEE 1st International Conference for Convergence in Engineering (ICCE), 2020In a radar application, Time Signal Generator (TSG) is used to generate timing and control signals which helps radar to operate in different functions. The functions include tracking, detection, and hold mode. Timing Signal Generator is the heart of radar applications.
Jasmin B. Mulla +2 more
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Interference Cancellation for High-Frequency Surface Wave Radar
IEEE Transactions on Geoscience and Remote Sensing, 2008The performance of high-frequency surface wave radar (HFSWR) is known to suffer from external environmental interference and noise, such as cochannel radio-frequency interference from other radiating source, ionospheric clutter, lightning impulsive noise, etc.
Xin Guo, Hongbo Sun, Tat Soon Yeo
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