Results 61 to 70 of about 380 (139)

A Self-Regulating Multi-Clutter Suppression Framework for Small Aperture HFSWR Systems

open access: yesRemote Sensing, 2022
The problem that this paper is concerned with is High Frequency Surface Wave Radar (HFSWR) detection of desired targets against a complex interference background consisting of sea clutter, ionosphere clutter, Radio Frequency Interference (RFI) and ...
Xiaowei Ji, Qiang Yang, Linwei Wang
doaj   +1 more source

Design of direct wave cancellation system for high‐frequency CW radar

open access: yesThe Journal of Engineering, Volume 2019, Issue 20, Page 6660-6663, October 2019., 2019
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

Extraction of Significant Wave Height from Spreading First-Order Bragg Peaks of Shipborne High-Frequency Surface Wave Radar with a Single Antenna

open access: yesRemote Sensing
Shipborne high-frequency surface wave radar (HFSWR) can extend the measurement area due to the flexible movement of the platform and provide a new way to monitor large-area marine environment parameters.
Xinbo Zhang   +3 more
doaj   +1 more source

Sky and ground - wave high frequency (HF) radars: challenges in modelling, simulation and application preface [PDF]

open access: yes, 2010
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  

Blind-time domain motion compensation of and significant-wave height extraction from high-frequency (HF) radar data acquired on a floating platform [PDF]

open access: yes, 2023
High-frequency surface wave radar (HFSWR) is recognized as one of the essential tools for remote sensing of the ocean surface. It provides wide-area, all-weather, and near-real time surveillance.
Hashemi, Seyedehsepideh
core  

Signal Processing of Coast-Ship Bistatic High-Frequency Surface-Wave Radar Using One-Bit Quantized Measurement

open access: yesIEEE Access, 2020
The feasibility of one-bit quantization in coast-ship bistatic high-frequency surface-wave radar (HFSWR) is mainly discussed in order to enjoy the advantages of simplicity, low cost and low power consumption.
Bingfan Liu, Baixiao Chen, Minglei Yang
doaj   +1 more source

System for surveillance of maritime traffic using the network of over-the-horizon radars [PDF]

open access: yes, 2021
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  

Comparing spatial patterns of marine vessels between vessel-tracking data and satellite imagery [PDF]

open access: yes, 2023
Monitoring marine use is essential to effective management but is extremely challenging, particularly where capacity and resources are limited. To overcome these limitations, satellite imagery has emerged as a promising tool for monitoring marine vessel ...
Colette C.C. Wabnitz   +12 more
core   +1 more source

Extraction of Suspicious Behavior of Vessels in the Exclusive Economic Zone [PDF]

open access: yes, 2008
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

Target Detection in Clutter/Interference Regions Based on Deep Feature Fusion for HFSWR

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
High-frequency surface wave radar (HFSWR) is of great significance for maritime detection, but in the HFSWR echo signal, ship targets are often submerged in a variety of clutter and interference, making it difficult to detect vessels.
Maokai Wu   +3 more
doaj   +1 more source

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