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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 Resolution Frequency MIMO Radar
2007 IEEE Radar Conference, 2007The frequency MIMO radar synthesizes a wideband waveform by transmitting and receiving multiple frequency signals simultaneously. This paper provides the efficient transmitter array configurations and signal processing methods to improve the cross range resolution and range resolution of the frequency MIMO radar after receiving beamforming.
Xi-Zeng Dai, Jia Xu, Ying-Ning Peng
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National high frequency radar network: Update
OCEANS 2009, 2009One of the primary efforts for the NOAA Integrated Ocean Observing System (IOOS®) Program office is the development of a national high frequency radar (HFR) network for measuring ocean surface currents throughout the coastal United States. After experiencing rapid growth for several years, the number of HF radars deployed in the United States is now ...
Jack Harlan, Eric Terrill, Bill Burnett
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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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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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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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Intelligent radar management techniques in high frequency surface wave radar
IET Seminar on Intelligent Sensor Management, 2007This paper has highlighted and provided some background as to why HFSWR has been a leader in intelligent radar techniques as without them the robust radar performance cannot be achieved. The use of basic Intelligent Radar Techniques has provided the ability for the radar to operate in a complex environment effectively and robustly.
D.G. Money, D.J. Emery, G. Dickel
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High frequency radar cross section prediction
Digest on Antennas and Propagation Society International Symposium, 2003The essentials of a method developed to obtain the cross section of perfectly conducting targets by considering the surface current components induced on the bodies is presented. This approach treats the surface traveling wave phenomenon, allowing it to be included in RCS (radar cross section) computations for complex objects. >
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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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