Results 61 to 70 of about 218 (135)

High-Resolution Doppler and Azimuth Estimation and Target Detection in HFSWR: Experimental Study. [PDF]

Sensors (Basel), 2022
Golubović D, Erić M, Vukmirović N.
europepmc   +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

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

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

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

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

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

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