Results 191 to 200 of about 560 (237)

Maritime Small Target Image Detection Algorithm Based on Improved YOLOv11n. [PDF]

Sensors (Basel)
Liu Z, Sun Y, He P, Liu N, Wang Z.
europepmc   +1 more source

PSD-YOLO: An Enhanced Real-Time Framework for Robust Worker Detection in Complex Offshore Oil Platform Environments. [PDF]

Sensors (Basel)
Qin Y, Dong J, Li W, Zhang L, Feng K, Wang Z.   +5 more
europepmc   +1 more source

Distributed Phased-Array Radar Mainlobe Interference Suppression and Cooperative Localization Based on CEEMDAN-WOBSS. [PDF]

Sensors (Basel)
Liu X, He H, Li R, Wu Y, Zhang X, You Y.
europepmc   +1 more source

Small target detection of floating objects in river channels based on improved YOLOv7. [PDF]

Sci Rep
Yang W, Zhang B, Guo S, Gao K, Ying J, Zheng J, Li C, Li J, Xu W, Chen Q, Cao J, Zuo Y, Chen Y, Wang W.   +13 more
europepmc   +1 more source

Online Dictionary Learning Techniques for Sea Clutter Suppression

2020 IEEE Radar Conference (RadarConf20), 2020
Maritime airborne surveillance radars operating at high grazing angles experience significant sea clutter returns with a time and range-varying Doppler spectra, thus making the detection of small targets extremely difficult. Many target detection schemes assume models for the amplitude distribution that require estimation of specific parameters.
Fabio Giovanneschi, Luke Rosenberg, Diego Cristallini   +2 more
openaire   +2 more sources

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Multichannel Sea Clutter Modeling for Spaceborne Early Warning Radar and Clutter Suppression Performance Analysis

IEEE Transactions on Geoscience and Remote Sensing, 2021
In this article, we propose a multichannel sea clutter model in a spaceborne early warning radar system and analyze the influence of the sea clutter motion characteristics on the space-time adaptive processing (STAP) performance. To establish a multichannel sea clutter model, the 3-D Gerstner wave model is applied to construct the sea surface. Then the
Penghui Huang, Zihao Zou, Xiang-Gen Xia   +2 more
exaly   +2 more sources

Sea Clutter Suppression for Radar PPI Images Based on SCS-GAN

IEEE Geoscience and Remote Sensing Letters, 2021
The problem of strong sea clutter, e.g., sea spikes, may bring in low signal-to-clutter ratio (SCR) and cause great interference to radar marine target detection. However, the sea clutter suppression ability of current algorithms is limited with poor generalization under complex marine environment.
Xiaolong Chen, Ningbo Liu, Xiaoqian Mu   +2 more
exaly   +2 more sources

Multichannel Analysis and Suppression of Sea Clutter for Airborne Microwave Radar Systems

IEEE Transactions on Geoscience and Remote Sensing, 2016
One efficient method to detect slow targets with low signal-to-clutter-plus-noise ratios is space–time adaptive processing (STAP). To apply STAP to maritime radar systems, the multichannel properties of sea clutter have to be known. This paper investigates these characteristics for airborne microwave radar systems to detect vessels in the open sea.
Valeria Gracheva, Joachim H. G. Ender
openaire   +2 more sources

Suppression of the sea clutter in marine radar system

IEEE International Conference on Acoustics Speech and Signal Processing, 2002
The purpose of this paper is to analyze the radar echo signal data in marine radar system, and we tackle a problem on suppression of the sea clutter on marine radar display by using Wavelet Transform, which gives optimum cut-off frequency with time (distance).
Koji Murai, Yuji Hayashi, Yuichi Miyoshi, Seiji Inokuchi   +3 more
openaire   +2 more sources