Results 41 to 50 of about 160 (97)

Surveillance of the 200 Nautical Mile Exclusive Economic Zone (EEZ) Using High Frequency Surface Wave Radar (HFSWR)

open access: yesCanadian Journal of Remote Sensing, 2001
RESUMELa Convention des Nations Unies sur la Loi de la Mer (CNULM) accorde la souverainete sur une zone de 200 milles nautiques (mn) en mer designee sous l'appellation de Zone economique exclusive (ZEE). En contrepartie, les nations doivent etablir et assurer la gestion, l'application de la loi et la protection de l'environnement dans cette nouvelle ...
openaire   +1 more source

Time Synchronisation for Passive Bistatic HFSWR via Kalman‐Filtered Delay‐Locked Loop

open access: yesIET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This paper proposes a per‐chirp time synchronisation method, FLOS‐Kalman‐DLL, for passive bistatic high‐frequency surface wave radar (HFSWR) operating under the coexistence of clock drift and atmospheric impulsive noise. The method combines fractional lower‐order statistics with a Kalman‐filtered delay‐locked loop to achieve sub‐sample synchronisation ...
Yuan Lu, Jie Song, Wei Xiong, Yaqi Cui
wiley   +1 more source

Unambiguous Wind Direction Estimation Method for Shipborne HFSWR Based on Wind Direction Interval Limitation

open access: yesRemote Sensing, 2023
Due to its maneuverability and agility, the shipborne high-frequency surface wave radar (HFSWR) provides a new way of monitoring large-area marine dynamics and environment information.
Yunfeng Zhang   +3 more
doaj   +1 more source

Deghosting method for cross localization in distributed high frequency surface wave radar

open access: yesThe Journal of Engineering, Volume 2024, Issue 11, November 2024.
To address the ghosts emerging during the cross localization in a novel distributed high frequency surface wave system, a multi‐stage deghosting method is utilized, which is based on the geometric characteristics, the velocity features, and the motion features of the targets across multiple frames.
Na Cui, Xuekun Chen, Changjun Yu
wiley   +1 more source

DOA estimation with extended sparse and parametric approach in multi‐carrier MIMO HFSWR

open access: yesThe Journal of Engineering, Volume 2019, Issue 21, Page 7810-7814, November 2019., 2019
To obtain a higher angle resolution of multiple‐in multiple‐out high‐frequency surface wave radar (MIMO HFSWR) for direction of arrival (DOA) estimation with a limited number of antenna sensors, multiple working frequencies are proposed to enlarge the aperture of the virtual array of the MIMO HFSWR.
Aihua Liu   +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

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

Extracting Pole Characteristics of Complex Radar Targets for the Aircraft in Resonance Region Using RMSPSO_ARMA

open access: yesInternational Journal of Antennas and Propagation, Volume 2024, Issue 1, 2024.
The extraction algorithm of target characteristics resonance set at the high‐frequency band plays a significant role in defense applications like early warning. The paper proposes a new method to extract the characteristic resonance set of radar targets in the resonance frequency region using an autoregressive moving average model optimized by root ...
Sang Zhou   +3 more
wiley   +1 more source

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

Surface Vector Current Retrieval by Single-Station High-Frequency Surface Wave Radar Based on Ocean Dynamics in the Taiwan Strait

open access: yesRemote Sensing
In order to address the issue of limited common coverage and high cost in mapping ocean surface vector current by two (or more) high-frequency surface wave radars, this paper proposes a single-station surface wave radar vector current inversion algorithm.
Li Wang   +5 more
doaj   +1 more source

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