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Spaceborne LiDAR Systems: Evolution, Capabilities, and Challenges. [PDF]
Sensors (Basel)Bolcek J +5 more
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A lightweight CNN for multi-source infrared ship detection from unmanned marine vehicles. [PDF]
HeliyonWang L +8 more
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Localization Method of Wide-Area Distribution Multistatic Sky-Wave Over-the-Horizon Radar
IEEE Geoscience and Remote Sensing Letters, 2022In this letter, a model of wide-area distribution multistatic T^M-R^N (M independent transmitters and N independent receivers) sky-wave over-the-horizon radar (WDMS-OTHR) is investigated. A localization algorithm that utilizes the hill-climbing algorithm based on the weighted least squares (HC-WLS) method for this model is also proposed.
Boya Li, Huotao Gao, Yun Ling
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Improved Frequency Monitoring System for Sky-Wave Over-the-Horizon Radar in Canada
IEEE Geoscience and Remote Sensing Letters, 2020Sky-wave over-the-horizon radar (OTHR) systems are of particular interest to the Canadian Department of National Defence (DND) since they provide the potential for surveillance of Canada. Because of dynamic ionospheric conditions in polar regions, any OTHR would necessitate a system where the operating frequencies and elevation angles change ...
Thayananthan Thayaparan +1 more
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Over the Horizon Sky Wave Radar Simulator for Ionosphere and Earth Surface Sounding
2011 IEEE International Geoscience and Remote Sensing Symposium, 2011A software tool for the simulation of the received echo of an over the horizon sky wave radar in pulse mode has been developed. The tool accounts for several models of the pulse radar Tx/Rx configuration, the antenna pattern, the electron ionospheric structure and the land/sea backscattering of the Earth's surface.
Luca Facheris, Fabrizio Cuccoli
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Signal Processing of Sky Wave Over-the-Horizon Radar
IIEEE International Conference on Acoustics Speech and Signal Processing, 2002In this paper, A review of signal processing for sky wave over-the-horizon radar (OTHR) is presented. The radar's operating mode, and its advantages and limitations are introduced firstly. Then the techniques on interference suppression, correction of some ionospheric contamination, and ship detection are reviewed in detail.
Hongbo Sun
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Knowledge-Aided Ocean Clutter Suppression Method for Sky-Wave Over-the-Horizon Radar
IEEE Geoscience and Remote Sensing Letters, 2018In a sky-wave radar, the strong ocean clutter may cover up the echo signal of slow-speed targets. This letter proposed a knowledge-aided ocean clutter suppression method for the sky-wave radar. The proposed method uses the radar carrier frequency and the pulse repetition interval as prior knowledge to reconstruct the prior ocean clutter.
Jinfeng Hu, Huiyong Li
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Based on Perturbation Method of Distributed Sky-Wave Over the Horizon Radar Sea Clutter Modeling
2016 CIE International Conference on Radar (RADAR), 2016For distributed sky-wave over the horizon radar (DSOTHR), we analyzed of shortcomings of the generalized function method to establish its model of sea clutter. At the same time based on perturbation method derived the DSOTHR sea clutter model expression.
Chao Xie, Yichun Pan, Huan He
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Track Clustering Based Data Association for Sky-Wave Over-the-Horizon Radar
IEEE 10th INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS, 2010The multipath propagation and low measurement precision in sky-wave Over-the-horizon Radar (OTHR) pose new challenges to data association. Aiming at the formation of ships, this paper presents a new method of data association. Firstly the plane measurement model is established, and the transformation between radar and ground coordinates is deduced ...
Xia Chen, Hongwen Yang, Weidong Hu
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Two-Hierarchical Hough Transform for Sky-Wave Over-the-Horizon Radar Track Initiation
2006 CIE International Conference on Radar, 2006In this paper, a data preprocessing method for sky-wave over-the-horizon radar (OTHR) track initiation using two-hierarchical 2D Hough transform is proposed. We firstly use range-time data space to hierarchical I Hough transform and obtain rough candidate measurement sequences, where Doppler is used as an accumulation constraint; then we use the ...
Lizhen Wang
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