Results 31 to 40 of about 222 (138)
Deep Learning-Based Automatic Clutter/Interference Detection for HFSWR
Remote Sensing, 2018 High-frequency surface wave radar (HFSWR) plays an important role in wide area monitoring of the marine target and the sea state. However, the detection ability of HFSWR is severely limited by the strong clutter and the interference, which are difficult ...
Ling Zhang +2 more
exaly +3 more sources
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
exaly +3 more sources
Sea Clutter Suppression Method of HFSWR Based on RBF Neural Network Model Optimized by Improved GWO Algorithm. [PDF]
Comput Intell Neurosci, 2020 The detection performance of high‐frequency surface‐wave radar (HFSWR) is closely related to the suppression effect of sea clutter. To effectively suppress sea clutter, a sea clutter suppression method based on radial basis function neural network (RBFNN) optimized by improved gray wolf optimization (IGWO) algorithm is proposed.
Shang S +5 more
europepmc +2 more sources
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
Ship Detection and Tracking Using Multi-Frequency HFSWR
IEICE Electronics Express, 2010 Xiaojing Huang, Biyang Wen
exaly +4 more sources
IET Radar, Sonar &Navigation, Volume 17, Issue 11, Page 1639-1645, November 2023., 2023 The authors proposes a new real‐time method to estimate the significant wave height directly from the antenna's received electric field in the time‐domain without requiring prior knowledge of the motion parameters or performing motion compensation. The results from this simple proposed technique show that it may be used to estimate the significant wave
Sepideh Hashemi +2 more
wiley +1 more source
IET Radar, Sonar &Navigation, Volume 17, Issue 10, Page 1498-1506, October 2023., 2023 Based on the time difference direction‐finding algorithm, new mathematical expressions of geometric dilution of precision (GDOP) are presented in Time Difference of Arrival positioning systems in this paper. The time difference direction‐finding reveals that the angle measurements are accurate for any length of baseline.
Yang Bai +3 more
wiley +1 more source
A novel sea clutter suppression method based on SVD‐FRFT at low signal‐to‐clutter ratio
Electronics Letters, Volume 59, Issue 14, July 2023., 2023 The target and sea clutter Doppler domains frequently overlap due to the frequent passage of slow ship targets through the sea clutter zone. In this letter, a novel sea clutter suppression method is suggested as a solution to this issue, whose key is a novel singular value zeroing criterion guided by the search results of two‐dimensional spectral peaks.
Qingyun Cheng +3 more
wiley +1 more source
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020 Ionospheric clutter is a major factor affecting the performance of high-frequency surface wave radar (HFSWR). Previous studies have been mainly focused on the development of ionospheric clutter suppression methods involving delicate signal processing ...
Xuguang Yang +3 more
doaj +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