Results 61 to 70 of about 531 (148)

Density Based Clustering Data Association Procedure for Real–Time HFSWRs Tracking at OTH Distances

open access: yesIEEE Access, 2020
In order to efficiently cover maritime areas at over the horizon (OTH) distances and thus increase marine safety in a nation's exclusive economic zone (EEZ), a network of maritime sensors built around High Frequency Surface Wave Radars (HFSWR) can be an ...
Nikola Stojkovic   +2 more
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

Space-Time Cascaded Processing-Based Adaptive Transient Interference Mitigation for Compact HFSWR

open access: yes, 2023
In high-frequency (HF) radar systems, transient interference is a common phenomenon that dramatically degrades the performance of target detection and remote sensing.
Qiushi Chen, Qiyan Tian, Di Yao
core   +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

Prediction method for ionospheric clutter suppression for HFSWR

open access: yesElectronics Letters, 2019
The detection performance of high‐frequency surface wave radar (HFSWR) is significantly impacted by ionospheric clutter and sea clutter. In order to suppress the ionospheric clutter, a new method based on the largest Lyapunov exponent prediction algorithm is proposed in this Letter.
Lyu Zhe, Yu ChangJun, Liu AiJun
openaire   +1 more source

The Application of JDL to Suppress Sea Clutter for Shipborne HFSWR [PDF]

open access: yes, 2015
This paper deals with the problem of sea clutter suppression for shipborne high frequency surface wave radar (HFSWR) based on the joint domain localized (JDL) adaptive processing algorithm. The performance of the novel method is compared with 2D FFT plus
Yang Li   +3 more
core   +1 more source

MIMO High Frequency Surface Wave Radar Using Sparse Frequency FMCW Signals

open access: yesInternational Journal of Antennas and Propagation, 2017
The heavily congested radio frequency environment severely limits the signal bandwidth of the high frequency surface wave radar (HFSWR). Based on the concept of multiple-input multiple-output (MIMO) radar, we propose a MIMO sparse frequency HFSWR system ...
Mengguan Pan, Baixiao Chen
doaj   +1 more source

Target Detection Method for High-Frequency Surface Wave Radar RD Spectrum Based on (VI)CFAR-CNN and Dual-Detection Maps Fusion Compensation

open access: yesRemote Sensing
This paper proposes a method for the intelligent detection of high-frequency surface wave radar (HFSWR) targets. This method cascades the adaptive constant false alarm (CFAR) detector variability index (VI) with the convolutional neural network (CNN) to ...
Yuanzheng Ji   +4 more
doaj   +1 more source

Maritime Over the Horizon Sensor Integration: HFSWR Data Fusion Algorithm

open access: yes, 2019
In order to provide a constant and complete operational picture of the maritime situation in the Exclusive Economic Zone (EEZ) at over the horizon (OTH) distances, a network of high frequency surface-wave-radars (HFSWR) slowly becomes a necessity.
Nikola Tosic   +6 more
core   +1 more source

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