Small-target detection in sea clutter

Author: qbgb

August undefined, 2024

WebJul 22, 2014 · Sea-glint makes the detection of small targets in the sea region a challenging problem, as shown in Figure 15. The dotted circle indicates the true target, and the arrow indicates the sun-glint. ... Reducing the number of false detections caused by clutter in small infrared target detection is quite challenging due to the point-like target ... 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 …

A Novel Method of Small Target Detection in Sea Clutter

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. 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, … inch and millimeter ruler

Anomaly Based Sea-Surface Small Target Detection Using K …

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 … 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, … 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... inadmissibility on public charge grounds

Small Target Detection in X-Band Sea Clutter Using the …

Infrared Small Marine Target Detection Based on Spatiotemporal …

WebOct 10, 2024 · Sea-surface small target detection using entropy features with dual-domain clutter suppression 1. Introduction. Generally, it is a challenging and meaningful task for … 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, … inch and mm relationWebInfrared 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 … inch and ounces

"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... " - Small-target detection in sea clutter

Small-target detection in sea clutter

Visual Detection and Association Tracking of Dim Small Ship …

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 … WebApr 14, 2024 · By virtue of the merits of wide swath, persistent observation, and rapid operational response, geostationary remote sensing satellites (e.g., GF-4) show …

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WebApr 14, 2024 · By virtue of the merits of wide swath, persistent observation, and rapid operational response, geostationary remote sensing satellites (e.g., GF-4) show tremendous potential for sea target system surveillance and situational awareness. However, ships in such images appear as dim small targets and may be affected by clutter, reef islands, … 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 …

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 …

WebJul 19, 2004 · Small-target detection in sea clutter. Abstract: Sea clutter in marine surveillance radar makes the task of detecting small targets a very challenging problem. In this paper, a set of three signal processing techniques designed to suppress unwanted … 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 …

WebIn 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 ...

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 … inch and miles: the journey to successWebSep 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. inch and mm chartWebApr 13, 2024 · Target detection in side-scan sonar images plays a significant role in ocean engineering. However, the target images are usually severely interfered by the complex … inadmissibility statisticsWebSep 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. … inch and mm rulerWebIn 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) … inch and ounces clematisWebAug 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 … inch and mmWebJul 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. inadmissibility s 35 act