Miniaturisation of high‐frequency SURFACE wave radar transmitting antenna
Antennas operating in the high‐frequency (HF) bands are generally relatively large in size, which severely limits the application of the antennas. Therefore, miniaturisation of the antenna is necessary. Here, a dual‐folded structure Yagi antenna is designed for HF surface wave radar (SWR).
Hong‐Bo Li, Yang Song, Chang‐Jun Yu
wiley +1 more source
Design of direct wave cancellation system for high‐frequency CW radar
When high‐frequency continuous wave (HFCW) radars transmit linear frequency modulated (LFM) continuous wave, there will be direct wave (DW) interference due to temporal continuity. In order to prevent receiver saturation, a DW cancellation system device is developed.
Nan Shang +3 more
wiley +1 more source
Space-time Characteristics and Experimental Analysis of Broadening First-order Sea Clutter in HF Hybrid Sky-surface Wave Radar [PDF]
In high frequency (HF) hybrid sky-surface wave radar, the first-order sea clutter broadening is very complex and serious under the influence of ionosphere and bistatic angle, which affects the detection of ship target.
Chu, T.Q. +4 more
core +1 more source
Sky and ground - wave high frequency (HF) radars: challenges in modelling, simulation and application preface [PDF]
Radar systems operating at high frequency (HF) are able to exploit a variety of propagation mechanisms to achieve line-of-sight (LOS) illumination as well as over-the-horizon coverage, thereby providing many opportunities for long range, wide area multi ...
Sevgi, Levent
core
Surveillance et contrôle des activités des navires en mer (REE nov. 2007) [PDF]
Dossier : La sécurité globale. Menaces et réponses. Article disponible sur cette page = http://www.irit.fr/scanmaris/index.php?page=publicationsNational audienceTo guarantee good security conditions in the French national water and exclusive economic ...
Alhadef, Bernard +9 more
core +2 more sources
3-D Moving Target Localization in Multistatic HFSWR: Efficient Algorithm and Performance Analysis
High-frequency surface wave radar (HFSWR) is unable to measure the target’s altitude information due to its limited antenna aperture in the elevation dimension.
Xun Zhang +3 more
doaj +1 more source
Editorial for the Special Issue "Remote Sensing of Target Detection in Marine Environment" [PDF]
First paragraph: Remote sensing is a powerful tool used to obtain an unprecedented amount of information about the ocean from a distance, usually from satellites or aircrafts. Measurements collected by active and passive remote sensing instruments can be
Marino, Armando +2 more
core +2 more sources
System for surveillance of maritime traffic using the network of over-the-horizon radars [PDF]
Ova disertacija se bavi optimizacijom i prilagođenjem algoritama za praćenje ciljeva za potrebe ublažavanja uticaja štetnih refleksija na proces praćenja ciljeva kod izahorizontskih radara sa površinskim talasom (HFSW radari), upotrebljenih za osmatranje
Stojković, Nikola
core
Extraction of Suspicious Behavior of Vessels in the Exclusive Economic Zone [PDF]
Available: http://ap-s.ei.tuat.ac.jp/isapx/2008/pdf/1645005.pdfInternational audienceIntroduction: Constant growth of world maritime transport and significant economic stakes of territorial water management have prompted the international community to ...
Giraud, Marie-Anne +5 more
core +1 more source
As devastating natural disasters, typhoons pose a tremendous threat to human society, making effective typhoon early warning and monitoring crucial.
Menghua Jiang +4 more
doaj +1 more source

