Small-target detection in sea clutter

Author: ciqd

August undefined, 2024

WebThe 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.

Infrared Small Marine Target Detection Based on Spatiotemporal …

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 … 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) … early years family support caerphilly

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

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 … 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, … 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, … csu scholarship opportunities

Small Target Detection Within Sea Clutter Based on Fractal Analysis

Floating Small Target Detection in Sea Clutter Based on …

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... 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 … early years events calendarWebOct 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. early years equipment uk

"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 … " - Small-target detection in sea clutter

Small-target detection in sea clutter

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

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 … 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 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 …

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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 … 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 ...

WebJan 1, 2016 · Sea clutter refers to the signals returned from the wavy and turbulent rough sea surface. 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, with small radar cross section, a difficult task. 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 …

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 ... WebApr 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 …

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, …

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. csu school colorsWebJun 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 ... early years farm activitiesWebJul 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 … csu school codeWebJun 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 … early years fife websiteWebJul 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 … csu schoologyWebNov 29, 2024 · Floating Small Target Detection in Sea Clutter Based on Jointed Features in FRFT Domain 1 Introduction. The traditional energy accumulation detectors are … csu school portalWebNov 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... csu school mint