Results 21 to 30 of about 1,759,726 (286)
Remote Sensing, 2023 The detection of small targets within the background of sea clutter is a significant challenge faced in radar signal processing. Small target echoes are weak in energy, and can be submerged by sea clutter and sea spikes, which are caused by overturning ...
Guigeng Li +3 more
doaj +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
Cognitive CFAR Parameter Optimization for Detection in Sea Clutter
, 2022 The performance of a proposed Cognitive Radar detection method is investigated and compared again conventional CFAR detection for the case of detection of small targets in simulated Sea Clutter.
Clark, Phil +7 more
core +1 more source
the plot, the clutter, the sampling and its lens: occlusion measures for automatic clutter reduction [PDF]
, 2006 Previous work has demonstrated the use of random sampling in visualising large data sets and the practicality of a sampling lens in enabling focus+context viewing.
Dix, Alan, Ellis, G.
core +3 more sources
Remote Sensing, 2022 Based on marine environmental factors of different sea areas, a high-performance sea clutter time series modeling algorithm for the real sea surface is developed to study the amplitude mean and Doppler spectrum characteristics of sea clutter.
Longxiang Linghu +4 more
doaj +1 more source
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
doaj +1 more source
Modelling of sea clutter with gaussian mixtures and estimation of the clutter parameter
Proceedings of the IEEE 12th Signal Processing and Communications Applications Conference, 2004., 2004 In order to model sea clutter, we propose to use a generalized distribution which is valid for different background statistics, like low and high sea states. The envelope detector's input statistics are assumed to be a Gaussian-mixture (GM). A new background probability density function (pdf) resembles Rician mixtures.
Sari, F, Sari, N, Mili, L
openaire +2 more sources
Modeling the Amplitude Distribution of Radar Sea Clutter [PDF]
Remote Sensing, 2019 Ship detection in the maritime domain is best performed with radar due to its ability to surveil wide areas and operate in almost any weather condition or time of day. Many common detection schemes require an accurate model of the amplitude distribution of radar echoes backscattered by the ocean surface. This paper presents a review of select amplitude
Sébastien Angélliaume +2 more
openaire +3 more sources
Blind sea clutter suppression for spaceborne gnss-r target detection [PDF]
, 2019 It has been demonstrated that delay-Doppler (DD) maps (DDMs) retrieved from spaceborne Global Navigation Satellite Systems Reflectometry missions contain sea clutter and also potential sea targets.
Dempster, AG ; https://orcid.org/ +2 more
core +1 more source
Entropy Metrics of Radar Signatures of Sea Surface Scattering for Distinguishing Targets
Remote Sensing, 2021 This paper analyzes sea clutter by a random series without assuming the scattering being independent. We quantitated the complexity of sea clutter by applying multiscale sample entropy.
Rui Jiang +5 more
doaj +1 more source