Results 51 to 60 of about 160 (97)

The Application of JDL to Suppress Sea Clutter for Shipborne HFSWR

International Journal of Antennas and Propagation, 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
Zhenyuan Ji, Chunlei Yi, Junhao Xie, Yang Li   +3 more
doaj   +1 more source

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

IEEE 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, Ling Zhang, Jiong Niu, Q. M. Jonathan Wu   +3 more
doaj   +1 more source

The Vertical Ionosphere Parameters Inversion for High Frequency Surface Wave Radar

International Journal of Antennas and Propagation, 2016
High Frequency Surface Wave Radar (HFSWR), which is currently applied in over-the-horizon detection of targets and sea states remote sensing, can receive a huge mass of ionospheric echoes, making it possible for the ionospheric clutter suppression to ...
Xuguang Yang, Changjun Yu, Aijun Liu, Linwei Wang, Taifan Quan   +4 more
doaj   +1 more source

Modified Multi-Mode Target Tracker for High-Frequency Surface Wave Radar

Remote Sensing, 2018
In high-frequency surface wave radar (HFSWR), part of the radiation signal inevitably propagates upward and illuminates the target through the ionosphere due to the poor controllability of the antenna’s vertical pattern.
Mengxiao Zhao, Xin Zhang, Qiang Yang
doaj   +1 more source

A Two-Step Method for Ionospheric Clutter Mitigation for HFSWR With Two-Dimensional Dual-Polarized Received Array

IEEE Access, 2020
For high-frequency surface wave radar (HFSWR), the unwanted radio wave originated from the ionosphere is commonly called ionospheric clutter. Its presence seriously affects the performance of the HFSWR and extremely degrades the radar capability to ...
Yunlong Yang, Xingpeng Mao, Yuguan Hou, Jun Geng   +3 more
doaj   +1 more source

An RD-Domain Virtual Aperture Extension Method for Shipborne HFSWR

Remote Sensing
High-frequency surface wave radar (HFSWR) is widely used for detecting sea surface or low-altitude targets due to its all-weather operation and over-the-horizon detection capability.
Youmin Qu, Xingpeng Mao, Yuguan Hou, Xue Li   +3 more
doaj   +1 more source

Knowledge-Based Generalized Side-Lobe Canceller for Ionospheric Clutter Suppression in HFSWR

Remote Sensing, 2018
High frequency surface wave radar (HFSWR) has been successfully developed for early warning and remote sensing. However, the ionospheric clutter is a difficult challenge that can make HFSWR system inefficient.
Xin Zhang, Di Yao, Qiang Yang, Yingning Dong, Weibo Deng   +4 more
doaj   +1 more source

Joint Analysis and Morphological Characterization of HFSWR Echo Properties during Severe Typhoon Muifa

Remote Sensing
Investigating the dynamic evolution process of the ocean and ionosphere in sudden sea conditions poses a challenging problem. To address this objective, this study utilizes actual data from high-frequency surface wave radar (HFSWR) to analyze, validate ...
Rong Wang, Zhe Lyu, Changjun Yu, Aijun Liu, Taifan Quan   +4 more
doaj   +1 more source

Ionospheric Clutter Model for HF Sky-Wave Path Propagation with an FMCW Source

International Journal of Antennas and Propagation, 2019
A theoretical model of the sky-wave path propagation with frequency modulated continuous wave (FMCW) source for high frequency (HF) radar is proposed in this paper.
Xuguang Yang, Aijun Liu, Changjun Yu, Linwei Wang   +3 more
doaj   +1 more source

Spatial polarimetric time-frequency distribution based DOA estimation: combining ESPRIT with MUSIC

EURASIP Journal on Wireless Communications and Networking, 2018
Spatial spectrum estimation technology has always been the focused research project in an array signal processing of High Frequency Surface Wave Radar (HFSWR).
Aijun Liu, Fen Li, Bo Li, Qingbo Liu, Xiuhua Shi   +4 more
doaj   +1 more source