Results 181 to 190 of about 478 (223)
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Suppression of the sea clutter in marine radar system
IEEE International Conference on Acoustics Speech and Signal Processing, 2002The 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 +3 more
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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 +5 more
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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 +5 more
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Online Dictionary Learning Techniques for Sea Clutter Suppression
2020 IEEE Radar Conference (RadarConf20), 2020Maritime 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 +2 more
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IEEE Transactions on Geoscience and Remote Sensing
Zihao Zou, Xingzhao Liu, Xiang-Gen Xia
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Zihao Zou, Xingzhao Liu, Xiang-Gen Xia
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Sea Clutter Suppression using EMD-SVD- FRFT Filtering
2019 International Conference on Control, Automation and Information Sciences (ICCAIS), 2019Sea clutter suppression is one of the major measures to improve target detection from sea clutter. Singular value decomposition-fractional Fourier transform (SVD-FRFT) filtering is conducted to suppress sea clutter without impairing the target even when the target and first-order sea clutter are mixed in the Doppler spectrum.
Wenguang Wang, Cheng Chen, Yilin Wang
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Research of Sea Clutter Suppression Algorithm Based on GPU
Applied Mechanics and Materials, 2012This paper presents an algorithm of sea clutter suppression using graphics processing unit (GPU) to meet the real-time requirement in the general radar terminal system. The main idea is to convert an infinite impulse response (IIR) filter to a finite impulse response (FIR) filter, which is suitable for the parallelization processing of GPU.
Yan Guo, Shi Dan Li, De Sheng Wang
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Sea Clutter Suppression Based on Selective Reconstruction of Features
2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR), 2019This paper presents a sea clutter suppression (SCS) method for single-channel maritime radar based on a deep Convolutional Neural Network (SCS-CNN), which consists of an encoder and a decoder. First, the encoder is used to extract depth features of the original Range-Doppler spectrum obtained from sub-aperture echoes.
Liwu Wen +3 more
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An Improved Oblique Projection Method for Sea Clutter Suppression in Shipborne HFSWR
IEEE Geoscience and Remote Sensing Letters, 2016Sea clutter has a major impact on the detection performance of a shipborne high-frequency surface wave radar (HFSWR) system. Due to the platform motion of shipborne HFSWR, the Doppler spectrum of the first-order sea clutter suffers from some broadening so that the targets submerged in this broadening Doppler spectrum can be hardly detected.
Chunlei Yi +4 more
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Multichannel Analysis and Suppression of Sea Clutter for Airborne Microwave Radar Systems
IEEE Transactions on Geoscience and Remote Sensing, 2016One 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
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Sea Clutter Suppression Method Based on Neural Networks
2023 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC), 2023Benben Li +5 more
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