Results 171 to 180 of about 238,197 (181)
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Ionosphere Decontamination of High Frequency Radar Echoes
2006 CIE International Conference on Radar, 2006The ionosphere contamination imposing on the high frequency (HF) radar echoes has to be suppressed since it severely degrades the detection performance of HF radar. In this paper, the mechanism of the ionosphere contamination from the ionosphere distortion is exposed for the first time by analyzing the course of HF radar signal processing. According to
Xi-xin Chen, Yin-he Huang
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Spatially Waveform Diverse Radar: Perspectives for High Frequency OTHR
2007 IEEE Radar Conference, 2007The application of multi-input multi-output (MIMO) radar concepts to HF over-the-horizon radar is considered to improve radar timeline management flexibility and to permit adaptivity on transmit. MIMO radar concepts in the literature are inconsistent and in this paper the taxonomy of MIMO radar is clarified and distinctions between different MIMO radar
Gordon J. Frazer +2 more
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Maritime Surveillance Using Multiple High-Frequency Surface-Wave Radars
IEEE Transactions on Geoscience and Remote Sensing, 2014In the last decades, great interest has been directed toward low-power high-frequency (HF) surface-wave radars as long-range early warning tools in maritime-situational-awareness applications. These sensors, developed for ocean remote sensing, provide an additional source of information for ship detection and tracking, by virtue of their over-the ...
Maresca, Salvatore +3 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.
Guo, X., Sun, H., Yeo, T.S.
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Ocean-clutter model for high-frequency radar
IEEE Journal of Oceanic Engineering, 1991The time-varying behavior of ocean-clutter signals is investigated with the objective of clutter suppression for target detection. It is shown that the ocean clutter may be adequately modeled with two narrowband Bragg signals with time-varying frequencies. Low-order adaptive-prediction filters can thus be used to suppress the ocean clutter.
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REENTRY PHENOMENA OBSERVED USING HIGH-FREQUENCY RADAR
1967Abstract : The Madre radar has been deployed in an over-the-horizon mode to study reentry phenomena associated with Athena-boosted reentry experiments at the White Sands Missile Range and with reentering manned earth satellites of the Gemini type. Preliminary results indicate the feasibility of using hf radars for over-the-horizon detection of reentry ...
F. H. Utley, C. B. Tesauro, G. A. Skaggs
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Evaluation of Bistatic High Frequency Radar Data
OCEANS 2021: San Diego – Porto, 2021Laura Nazzaro, Hugh Roarty
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A high frequency penetrating radar for masonry investigation
2002MECATTI, DANIELE +4 more
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