Small-target detection in sea clutter

Author: efzk

August undefined, 2024

WebAug 6, 2002 · A new method based on chaos and neural network theory for small target detection in sea clutter is presented. The authors present the signal model. They then … WebFeb 11, 2024 · The first maritime surveillance radars in World War II quickly discovered that returns from the sea, soon to be known as sea clutter, …

Small Target Detection Within Sea Clutter Based on Fractal Analysis

WebJun 27, 2024 · Small target detection in high-resolution sea clutter is one of the important problems in radar target detection. We propose a new detector that adopts the visibility graph (VG) algorithm and the graph convolution neural network (GCN). This detector extracts the graph feature of radar echo networks for target detection after converting the … t shirt layout app

At-sea small target detecting method based on average period

WebSep 9, 2024 · It is challenging to detect small-floating object in the sea clutter for a surface radar. In this paper, we have observed that the backscatters from the target brake the continuity of the underlying motion of the sea surface in the time-Doppler spectra (TDS) images. Following this visual clue, we exploit the local binary pattern (LBP) to measure the … WebResearch about infrared dim and small target detection (DSTD) is concentrated on single-frame algorithms, which are limited by the contrast between target and background and face with the problems of low detection probability, high false alarm rate and lack of robustness in low signal-to-clutter ratio (SCR) and strong noise environment. Studying use multi … WebSep 9, 2024 · It is challenging to detect small-floating object in the sea clutter for a surface radar. In this paper, we have observed that the backscatters from the target brake the … philosophy greek word origin

Small-floating Target Detection in Sea Clutter via Visual Feature ...

A Novel Method of Small Target Detection in Sea Clutter

WebNov 29, 2024 · Floating Small Target Detection in Sea Clutter Based on Jointed Features in FRFT Domain 1 Introduction. The traditional energy accumulation detectors are … WebSep 18, 2024 · 2.1 Detection problem of floating small target in sea clutter Suppose that the radar transmits a coherent pulse train of length N at a beam position. When the cell under test (CUT) includes the returns with target, the CUT consists of target returns and sea clutter and noise; otherwise, the CUT consists of sea clutter and noise. philosophy guidesWebIn high sea conditions, the spectrum of some small ﬂoating targets will overlap with the clutter spectrum in varying degrees, as shown in Fig. 3. Even in the ... Cui SP (2014) … philosophy groupon

"WebJan 1, 2016 · The radar returns from small targets, like submarine periscope or small boats, will be obscured by the sea clutter which makes the straightforward detection of targets, … " - Small-target detection in sea clutter

Small-target detection in sea clutter

Sea‐surface floating small target detection based on feature ...

WebJul 27, 2024 · Anomaly Based Sea-Surface Small Target Detection Using K-Nearest Neighbor Classification Abstract: Sea-surface small target detection is always a difficult problem in high-resolution maritime ubiquitous radars for complex characteristics of sea clutter, weak target returns, and diversity of targets. WebNov 29, 2024 · The jointed-feature detector for the floating small target in sea clutter is addressed in the paper. For the traditional energy-based detectors, it is difficult to detect the low...

Did you know?

WebSep 1, 2024 · According to Monte Carlo simulation results, the proposed graph-based signal (target) detection method leads to the outstanding performance, compared to other existing techniques, especially when the signal-to-noise ratio is rather small (0–6 dB). In this paper, a novel robust graph-based adequate and concise information representation paradigm is … WebJun 30, 2024 · Small target detection in high-resolution sea clutter is one of the important problems in radar target detection. We propose a new detector which adopts the visibility graph algorithm...

WebJan 1, 2012 · This paper focuses on small target of sea surface detection in sea clutter. Firstly, it analyses the statistic of sea clutter. Secondly, three feature vectors (namely, … WebJun 1, 2024 · Sea-surface small target detection is substantially a special classification problem to distinguish target returns from sea clutter. It is known that the reason of the Hurst exponent of amplitude sequence to be able to find targets is that radar returns of small targets have less fluctuation in amplitude or power than sea clutter in a long ...

WebInfrared dim and small target detection is widely used in military and civil fields. Traditional methods in that application rely on the local contrast between the target and background for single-frame detection. On the other hand, those algorithms depend on the motion model with fixed parameters for multi-frame association. For the great similarity of gray value … WebJun 27, 2024 · Abstract: Small target detection in high-resolution sea clutter is one of the important problems in radar target detection. We propose a new detector that adopts the …

WebJul 1, 2024 · Introduction. High range resolution, a rapid scanning antenna and scan-to-scan integration technologies are generally applied for detecting small slowly moving sea-surface targets [], e.g. the periscope.However, for the wideband radar, the sea-clutter amplitude statistics are very long tailed and highly correlated [].This leads to high false alarm rate for …

WebOct 25, 2024 · In this paper we propose a novel convolutional neural network based dual-activated clutter suppression algorithm, to solve the problem caused by low signal-to-clutter ratios in actual situations on the sea surface. Dual activation has two steps. philosophy group melbourneWebSep 1, 2024 · This database is recognized and authoritative measured database for small target detection in sea clutter. Some parameters of the IPIX radar are shown in Table 1. … philosophy group adelaideWebAug 6, 2002 · A new method based on chaos and neural network theory for small target detection in sea clutter is presented. The authors present the signal model. They then describe a neural network trained with the least-mean-square (LMS) algorithm for the dynamic reconstruction of sea clutter. A chaotic detection algorithm based on the neural … philosophy gwuWebThe method according to the invention detects small target on the sea with the difference. Furthermore the method does not require presupposing a sea clutter statistical model, and is not easily interfered by the sea peak. The application result of measured data also indicates that the method can effectively detect the small target on the sea. philosophy hair newarkWebIn high sea conditions, the spectrum of some small ﬂoating targets will overlap with the clutter spectrum in varying degrees, as shown in Fig. 3. Even in the ... Cui SP (2014) Target detection in sea clutter background based on time-frequency analysis. Harbin Institute of Technology, Harbin, pp 25–32 (in Chinese) 8. Tough JA, Ward KD ... philosophy gwpWebFeb 24, 2024 · 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. Based on the phenomenon that sea clutter spreads not only in the temporal domain but also in the spatial domain, this paper proposes an infrared small marine target detection … philosophy gym stephen law pdfWebJun 28, 2011 · Small-target detection in sea clutter S. Panagopoulos, J. Soraghan Engineering IEEE Transactions on Geoscience and Remote Sensing 2004 TLDR A set of three signal processing techniques designed to suppress unwanted sea clutter radar echo and achieve target detection with no prior knowledge of the ocean and environmental … philosophy groups in my area