Results 111 to 120 of about 65,382 (157)

New DMSP Database of Precipitating Auroral Electrons and Ions. [PDF]

J Geophys Res Space Phys, 2017
Redmon RJ, Denig WF, Kilcommons LM, Knipp DJ.   +3 more
europepmc   +1 more source

Tristatic observation of polar mesosphere winter echoes with the EISCAT VHF radar on 8 January 2014: a case study. [PDF]

Earth Planets Space, 2018
Belova E, Kawnine M, Häggström I, Sergienko T, Kirkwood S, Tjulin A.   +5 more
europepmc   +1 more source

Localization of Mixed Completely and Partially Polarized Signals with Crossed-Dipole Sensor Arrays. [PDF]

Sensors (Basel), 2015
Wang K, He J, Shu T, Liu Z.
europepmc   +1 more source

Deep Reinforcement Learning-Based Routing Method for Low Earth Orbit Mega-Constellation Satellite Networks with Service Function Constraints. [PDF]

Sensors (Basel)
Chen Y, Cao H, Wang L, Chen D, Liu Z, Zhou Y, Shi J.   +6 more
europepmc   +1 more source

Characterization of the Surfaces and Near-Surface Atmospheres of Ganymede, Europa and Callisto by JUICE. [PDF]

Space Sci Rev
Tosi F, Roatsch T, Galli A, Hauber E, Lucchetti A, Molyneux P, Stephan K, Achilleos N, Bovolo F, Carter J, Cavalié T, Cimò G, D'Aversa E, Gwinner K, Hartogh P, Huybrighs H, Langevin Y, Lellouch E, Migliorini A, Palumbo P, Piccioni G, Plaut JJ, Postberg F, Poulet F, Retherford K, Rezac L, Roth L, Solomonidou A, Tobie G, Tortora P, Tubiana C, Wagner R, Wirström E, Wurz P, Zambon F, Zannoni M, Barabash S, Bruzzone L, Dougherty M, Gladstone R, Gurvits LI, Hussmann H, Iess L, Wahlund JE, Witasse O, Vallat C, Lorente R.   +46 more
europepmc   +1 more source

Chaotic Detection of Target Signal in HFSWR Ionospheric Clutter Background under Typhoon Excitation

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Rong Wang 0010, Changjun Yu, Zhe Lyu, Aijun Liu   +3 more
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Extraction of ionospheric clutter in HFSWR

2010 The 2nd International Conference on Industrial Mechatronics and Automation, 2010
The two main applications of High frequency surface wave radar (HFSWR) are maritime surveillance of the Exclusive Economic Zone (EEZ) and the remote sensing of the sea. Ionospheric clutter strongly limits the detection capabilities of HFSWR. In order to analyze the effect of ionospheric clutter, a method based on image processing is proposed to extract
Shang Shang, Ning Zhang, Yang Li
exaly   +2 more sources

A new method for ionospheric clutter suppression in HFSWR

Proceedings of 2011 IEEE CIE International Conference on Radar, 2011
High frequency surface wave radar (HFSWR) is an effective early warning radar, but the detection performance is impacted by the ionospheric clutter seriously. In order to suppress the ionospheric clutter, a segment accumulation algorithm is proposed, based on the time-frequency characteristics of the ionospheric clutter.
null Shang Shang, null Zhang Ning, null Li Yang   +2 more
exaly   +2 more sources

A Model for the Ionospheric Clutter in HFSWR Radar

2008 International Conference on Information Management, Innovation Management and Industrial Engineering, 2008
In order to find an effective arithmetic which can suppress the useless ionospheric clutter in a surface wave radar system, a new model for the ionospheric clutter is proposed here. Using the multiple phase-screen method used for the investigation of the HF wave propagation, the amplitude and phase scintillation of the ionospheric clutter can be ...
exaly   +2 more sources

Ionospheric Decontamination and Sea Clutter Suppression for HF Skywave Radars

IEEE Journal of Oceanic Engineering, 2005
In this paper, a cascaded correction and suppression method of reducing ionospheric phase path contamination and sea clutter to enable detection of targets travelling at speeds near the Bragg Doppler is addressed. The Hankel rank reduction (HRR) technique based on singular value decomposition (SVD) has been used to estimate the ionospheric phase ...
Xingzhao Liu
exaly   +2 more sources