Results 21 to 30 of about 380 (139)
A CFAR‐like detector based on neural network for simulated high‐frequency surface wave radar data
IET Radar, Sonar &Navigation, Volume 17, Issue 5, Page 859-875, May 2023., 2023 This article presents a deep neural network‐based constant false alarm rate detector for high‐frequency surface wave radar. A deep neural network is trained to identify fluctuation parameters of each cell of a range‐Doppler power spectrum based on the patterns present in the neighbouring cells.
Rômulo Fernandes da Costa +3 more
wiley +1 more source
IET Radar, Sonar &Navigation, Volume 17, Issue 4, Page 571-578, April 2023., 2023 The article considers the case of a monostatic HF radar configuration where the transmitting antenna is on a floating platform while the receiving antenna is fixed. The proposed non‐linear optimisation‐based method in this article is able to successfully estimate the parameters of motion of the floating platform without prior knowledge of them and is ...
Sepideh Hashemi +2 more
wiley +1 more source
First-Order Ocean Surface Cross Section for Shipborne Bistatic HFSWR: Derivation and Simulation
Journal of Marine Science and Engineering, 2022 A bistatic high-frequency surface wave radar (HFSWR) with both receiving and transmitting stations placed on different ships (platforms) is a new radar system and referred to as shipborne bistatic HFSWR.
Yonggang Ji +6 more
doaj +1 more source
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
Shipborne HFSWR Target Detection in Clutter Regions Based on Multi-Frame TFI Correlation
Remote Sensing, 2022 High-frequency surface wave radar (HFSWR) is an important marine monitoring technology, and this new regime of radar plays an important role in large-scale, continuous early-warning monitoring at sea. In particular, shipborne HFSWR has wider applications
Tao Wang, Ling Zhang, Gangsheng Li
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
Vessel Tracking Using Bistatic Compact HFSWR
Remote Sensing, 2020 Bistatic and multi-static high-frequency surface wave radar (HFSWR) is becoming a prospective development trend for sea surface surveillance due to its potential in extending the coverage area, improving the detection accuracy, etc.
Weifeng Sun +4 more
doaj +1 more source
Advanced Geoscience Remote Sensing [PDF]
, 2021 Nowadays, advanced remote sensing technology plays tremendous roles to build a quantitative and comprehensive understanding of how the Earth system operates.
core +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
Remote Sensing, 2023 A high-frequency surface wave radar (HFSWR) is the only sensor that provides inexpensive surveillance for up to 200 nautical miles (NM) of the exclusive economic zone in the 3–5 MHz band. However, because of its long wavelength, its angular resolution is
Eunhee Kim +4 more
doaj +1 more source