Results 71 to 80 of about 222 (138)

Study on the Elimination Method of Wind Field Influence in Retrieving a Sea Surface Current Field. [PDF]

Sensors (Basel), 2022
Yuan X, Wang J, Han B, Wang X.
europepmc   +1 more source

Prediction method for ionospheric clutter suppression for HFSWR

Electronics 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

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

Remote 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, Aijun Liu, Xuekun Chen, Jiaqi Wang, Changjun Yu   +4 more
doaj   +1 more source

Improved Main Lobe Cancellation Method for Suppression Directional Noise in HFSWR Systems

Remote Sensing
High frequency surface wave radar (HFSWR) has been successfully developed for early warning, especially for vessel target detection. However, the system’s performance is consistently constrained by external environmental noise, particularly directional ...
Dezhu Xiao, Xin Zhang, Qiang Yang, Jiaming Li   +3 more
doaj   +1 more source

Space-polarization Collaborative Suppression Method for Ionospheric Clutter in HFSWR

Leida xuebao, 2016
High Frequency Surface Wave Radar (HFSWR) is able to receive surface target and low-flying aircraft echoes at a long-distance, but it suffers severely from ionospheric clutter.
Yang Yunlong, Mao Xingpeng, Dong Yingning, Deng Weibo   +3 more
doaj   +1 more source

A Deep Learning-Based Time-Frequency Scheme for Ship Detection Using HFSWR

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Compact High frequency surface wave radar (HFSWR) has been widely used in remote sensing of oceanic dynamics and ship targets due to its convenient deployment and low cost.
Da Huang, Hao Zhou, Yingwei Tian, Zhiqing Yang, Weimin Huang   +4 more
doaj   +1 more source

Designing Laboratory for IoT Communication Infrastructure Environment for Remote Maritime Surveillance in Equatorial Areas Based on the Gulf of Guinea Field Experiences. [PDF]

Sensors (Basel), 2020
Petrovic R, Simic D, Drajic D, Cica Z, Nikolic D, Peric M.   +5 more
europepmc   +1 more source

Spatial Directional Noise Cancelation and Weak Target Detection Method Based on Beamspace and Multiple Fourth-Order Cumulants for HFSWR

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
High-frequency surface wave radar (HFSWR) has been widely applied to early warning and marine remote sensing due to its over-the-horizon propagation characteristics. Noise and interference are the critical factors affecting its performance.
Dezhu Xiao, Xin Zhang, Shuo Chen, Yu Song   +3 more
doaj   +1 more source

Robust Adaptive Beamforming with Optimal Covariance Matrix Estimation in the Presence of Gain-Phase Errors. [PDF]

Sensors (Basel), 2020
Yao D, Zhang X, Hu B, Yang Q, Wu X.
europepmc   +1 more source

Multi-Channel Data Acquisition Card under New Acquisition and Transmission Architecture of High Frequency Ground Wave Radar. [PDF]

Sensors (Basel), 2021
Bai Y, Zhang X, Yang Q, Yang Y, Deng W, Yao D.   +5 more
europepmc   +1 more source