Results 41 to 50 of about 222 (138)
Journal of Engineering, Volume 2023, Issue 1, 2023., 2023 Thelong‐distance coverage of high‐frequency surface wave radar (HFSWR) has promoted it as an enormous means for ship monitoring on the country’s maritime territory. Since it is a primaryradar, noncooperative targets can also be detected. However, this radar also has a shortcoming of low spatial and temporal resolutions due to the narrow available ...
Iswandi +3 more
wiley +1 more source
Comparative Study on Chaos Identification of Ionospheric Clutter From HFSWR
IEEE Access, 2019 In addition to target echoes, high frequency surface wave radar (HFSWR) receives sea and ionospheric clutter. Among these clutters, the ionospheric clutter is dominant and significantly affects the detection performance of HFSWR, particularly when the ...
Lyu Zhe +4 more
doaj +1 more source
Impacts of Auroral Precipitation on HF Propagation: A Hypothetical Over‐the‐Horizon Radar Case Study
Space Weather, Volume 19, Issue 12, December 2021., 2021 Abstract Over‐the‐horizon radar (OTHR) systems operating in the high‐frequency (HF) band (3–30 MHz) are unique in their ability to detect targets at extreme ranges, offering cost‐effective large‐area surveillance. Due to their reliance on the reflective nature of the ionosphere in this band, OTHR systems are extremely sensitive to ionospheric ...
Joshua J. Ruck, David R. Themens
wiley +1 more source
Remote Sensing, 2023 The amplitude and phase errors in array elements lead to uncertainties in the estimation of arrival angles (DOA), which, in turn, affect the accuracy of current measurements for high-frequency surface wave radar (HFSWR). To address this issue, this paper
Wei Fu +5 more
doaj +1 more source
APO-ELM Model for Improving Azimuth Correction of Shipborne HFSWR
Remote Sensing, 2023 Shipborne high-frequency surface wave radar (HFSWR) has a wide range of applications and plays an important role in moving target detection and tracking.
Yaning Wang +3 more
doaj +1 more source
Bistatic and Stereoscopic Configurations for HF Radar
Remote Sensing, 2020 Most HF radars operate in a monostatic or quasi-monostatic configuration. The collocation of transmit and receive facilities simplifies testing and maintenance, reduces demands on communications networks, and enables the use of established and relatively
Stuart Anderson
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
Coast–Ship Bistatic HF Surface Wave Radar: Simulation Analysis and Experimental Verification
Remote Sensing, 2020 The coast−ship bistatic high-frequency surface wave radar (HFSWR) not only has the anti-interference advantages of the coast-based bistatic HFSWR, but also has the advantages of maneuverability and an extended detection area of the shipborne HFSWR.
Yonggang Ji +8 more
doaj +1 more source
An Orthogonal Projection Algorithm to Suppress Interference in High-Frequency Surface Wave Radar
Remote Sensing, 2018 High-frequency surface wave radar (HFSWR) has been widely applied in sea-state monitoring, and its performance is known to suffer from various unwanted interferences and clutters.
Zezong Chen, Fei Xie, Chen Zhao, Chao He
doaj +1 more source
Stationary Time Statistical Property of Ionospheric Clutter in High-Frequency Surface-Wave Radar
Journal of Electrical and Computer Engineering, 2019 In HFSWR (high-frequency surface-wave radar) system, the detection performance is impacted seriously by ionospheric clutter. Frequency selection is an effective method to avoid the effect of ionospheric clutter.
Shang Shang +3 more
doaj +1 more source