Results 191 to 200 of about 1,046 (220)
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Performance evaluation of correlation detector for HF Surface Wave Radar
2012 Asia Pacific Microwave Conference Proceedings, 2012HF Surface Wave Radar (SWR) can provide cost effective coastal surveillance. Recently invented correlation detector observes the correlation of received power along the azimuth axis across neighboring Range Doppler (RD) cells to detect the presence of a target in a given RD cell.
T. Fickenscher, A. Gupta, P. Ludwig
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HF surface wave radar management techniques applied to surface craft detection
Record of the IEEE 2000 International Radar Conference [Cat. No. 00CH37037], 2002HF radar is a unique land or ship based sensor which provides over the horizon (OTH) target detection. In the absence of microwave ducting, which is not a reliable environmental feature, HF radar operating in the 3-30 MHz band offers the primary method of obtaining target returns from beyond the conventional radar horizon.
D.G. Money +4 more
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Ionospheric Decontamination for HF Hybrid Sky-Surface Wave Radar on a Shipborne Platform
IEEE Geoscience and Remote Sensing Letters, 2017This letter describes a method of correcting ionospheric frequency modulation for a high-frequency hybrid sky-surface wave radar mounted on a shipborne platform. In the proposed method, azimuth-dependent sea clutter signals are first decomposed into monocomponent signals based on distinguishable differences in their directions of incidence.
Yongpeng Zhu, Yinsheng Wei, Lei Yu 0011
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Knowledge-based ship tracking applied to HF surface wave radar data
2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2015In recent years, low-power high-frequency surface-wave radars have received significant attention thanks to their over-the-horizon coverage capability and the continuous-time operation mode. These radars have become effective long-range early-warning tools for maritime situational awareness applications.
Gemine Vivone +2 more
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Remote sensing of surface currents and waves by the HF radar WERA
Seventh International Conference on Electronic Engineering in Oceanography - Technology Transfer from Research to Industry, 1997HF radar is based on the process of backscattering of electromagnetic waves of 10 m to 50 m wavelength from the rough sea surface and can be used to measure surface currents and ocean wave parameters. In contrast to microwave radars, the transmitted electromagnetic wave is guided by the sea surface following the curvature of the Earth beyond the ...
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Comparisons of different HF ocean surface-wave radar technologies
2015 IEEE/OES Eleveth Current, Waves and Turbulence Measurement (CWTM), 2015The HF ocean radar industry offers two main genres of the technology which have some characteristics in common, but which are technically sufficiently different that the customer has a real choice. The crossed loop genre has small antenna footprints, and with the 180° panoramic view can be daisychained to good economic advantage.
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The choice of operating frequency in HF surface wave radar design
Ninth International Conference on HF Radio Systems and Techniques, 2003Radars operating in the HF band (3-30 MHz) are primarily of interest because of their ability to provide an over-the-horizon (OTH) surveillance capability. There are two types of such OTH radars - skywave (typically capable of detecting. targets at ranges of thousands of kilometres) and surface wave (typical detection ranges of hundreds of kilometres).
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On Ionospheric Clutter in SurfaceWave HF Radars
Telecommunications and Radio Engineering, 1998Ivan S. Turgenev, Stanislav I. Khomenko
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Multiple oceanographic HF surface-wave radars applied to maritime surveillance.
2014In the context of maritime surveillance, low-power high-frequency surface-wave (HFSW) radars are attracting significant attention as cost-effective tools for long-range ship detection and tracking applications. In this paper, multi-target tracking and data fusion techniques are applied to live-recorded data from a network of three oceanographic HFSW ...
Maresca, Salvatore +3 more
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Statistical analysis of data measured by the HF surface wave radar WERA
2009Surface wave (SW) over the horizon (OTH) radars have been widely used for remote sensing and oceanic applications. These systems operate continuously for monitoring both sea currents and waves by analyzing the signal backscattered by the rough sea surface.
GRECO, MARIA +4 more
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