Results 31 to 40 of about 560 (237)
Infrared Maritime Small-Target Detection Based on Fusion Gray Gradient Clutter Suppression
Remote SensingThe long-distance ship target turns into a small spot in an infrared image, which has the characteristics of small size, weak intensity, limited texture information, and is easily affected by noise.
Wei Wang +2 more
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A Knowledge-Based Auxiliary Channel STAP for Target Detection in Shipborne HFSWR
Remote Sensing, 2021 The broadened first-order sea clutter in shipborne high frequency surface wave radar (HFSWR), which will mask the targets with low radial velocity, is a kind of classical space–time coupled clutter.
Liang Guo +5 more
doaj +1 more source
Infrared Small Marine Target Detection Based on Spatiotemporal Dynamics Analysis
Remote Sensing, 2023 It is a big challenge to detect and track small infrared marine targets in non-stationary and time-varying sea clutter because the signal is too strong to be estimated.
Chujia Dang +3 more
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International Journal of Antennas and Propagation, 2019 The high-frequency hybrid sky-surface wave radar (HFSSWR) is a new kind of over-the-horizon radar system. Combining the advantages of both the sky wave radar and the surface wave radar, HFSSWR has drawn much attention in recent years.
Jiazhi Zhang +4 more
doaj +1 more source
, 2022 6 S.Real multi-channel high resolution data was collected for 15° and 35° grazing angle and for different swell directions. Space-Time-Adaptive Processing performance of sea clutter suppression is analyzed and compared for these different ...
Cerutti-Maori, D., Gracheva, V.
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Land-sea Separation and Sea Surface Zoning Algorithms for Sea Surface Target
Leida xuebao, 2019 Adaptive detection can effectively improve the detection performance of marine surveillance radars; however, the islands or lands introduce discrete or flaky strong clutter, which may result in wrong covariance matrix estimation.
ZHOU Ming +3 more
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A novel sea clutter suppression method based on SVD‐FRFT at low signal‐to‐clutter ratio
Electronics Letters, 2023 Abstract 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‐
Qingyun Cheng +3 more
openaire +1 more source
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 In this article, we propose a new weak maneuvering target detection method in a sea environment with a Radon-fractional Fourier transform (RFrFT) canceller, which can efficiently suppress the sea clutter and detect targets with low computations.
Chang Gao, Ran Tao, Xuejing Kang
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Dolphin-inspired target detection for sonar and radar
, 2014 Gas bubbles in the ocean are produced by breaking waves, rainfall, methane seeps, exsolution, and a range of biological processes including decomposition, photosynthesis, respiration and digestion.
Leighton, T.G. +3 more
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Signal Processing Methods to Improve Ocean Surface Wave Estimation from a High Frequency Surface Wave Radar [PDF]
, 2011 High frequency surface wave radars are operated as a remote sensor to measure ocean surface parameters to ranges exceeding 200-300 km from the coastline.
Wang, Wei
core