Results 1 to 10 of about 8,222 (258)

A Novel Reconstruction Method of K-Distributed Sea Clutter with Spatial–Temporal Correlation

open access: yesSensors, 2020
The reconstruction of sea clutter plays an important role in target detection and recognition in a maritime environment. Reproducing the temporal and spatial correlations of real data simultaneously is always a problem in the reconstruction of sea ...
Mingyue Ding   +4 more
doaj   +1 more source

The Clutter Simulation of a Known Terrain by the 3D Parabolic Equation and RCS Computation

open access: yesSensors, 2022
Ground clutter data are usually generated using a statistical model, but they cannot effectively reflect the spatial distribution characteristics of ground objects.
Zhiyi Wang   +3 more
doaj   +1 more source

An Ionospheric Es Layer Clutter Model and Suppression in HF Surfacewave Radar

open access: yesInternational Journal of Antennas and Propagation, 2013
This paper based on a fast implemented multiphase screen method using DFT puts forward an ionospheric Es layer clutter model and uses the newly developed dimensionality reduction space-time adaptive processing- (STAP-) JDL algorithm to suppress Es layer ...
Yajun Li   +4 more
doaj   +1 more source

A Range-ambiguous Clutter Suppression Method for MIMO Bistatic Airborne Radar

open access: yesLeida xuebao, 2018
The ground clutter of sidelooking Multiple-Input Multiple-Output (MIMO) bistatic radar has severe problems of range-dependence and clutter spectrum spreading.
Wang Yuzhuo, Zhu Shengqi, Xu Jingwei
doaj   +1 more source

A Novel Method for Sea-Land Clutter Separation Using Regularized Randomized and Kernel Ridge Neural Networks

open access: yesSensors, 2020
Classification of clutter, especially in the context of shore based radars, plays a crucial role in several applications. However, the task of distinguishing and classifying the sea clutter from land clutter has been historically performed using clutter ...
Le Zhang   +3 more
doaj   +1 more source

Small Floating Target Detection Method Based on Chaotic Long Short-Term Memory Network

open access: yesJournal of Marine Science and Engineering, 2021
In order for the detection ability of floating small targets in sea clutter to be improved, on the basis of the complete ensemble empirical mode decomposition (CEEMD) algorithm, the high-frequency parts and low-frequency parts are determined by the ...
Yan Yan, Hongyan Xing
doaj   +1 more source

Speech characteristics that differentiate stuttering and cluttering in Japanese speakers

open access: yesFrontiers in Psychology
BackgroundCluttering is a speech disorder distinct from stuttering. Despite this distinction, there is no established method to clearly differentiate the two disorders. This study aimed to use objective criteria to differentiate cluttering from stuttering in Japanese speakers.MethodsParticipants were 32 consecutive native-Japanese speakers who visited ...
Shuta Tomisato   +9 more
openaire   +3 more sources

Motion Clutter Suppression for Non-Cooperative Target Identification Based on Frequency Correlation Dual-SVD Reconstruction

open access: yesSensors
Non-cooperative targets, such as birds and unmanned aerial vehicles (UAVs), are typical low-altitude, slow, and small (LSS) targets with low observability.
Weikun He, Yichuan Luo, Xiaoxiao Shang
doaj   +1 more source

CFAR Detector Based on the Identification of Sea Clutter Distribution Characteristics

open access: yesJournal of Physics: Conference Series, 2022
Abstract To improve the capability of radar detection in a time-varying maritime environment, an algorithm was proposed and analyzed in this paper that can be applied to determine the shape and scale parameters of the K-distributed model using the radar parameters and environmental information under the context of K-distributed sea ...
Bowen Li   +3 more
openaire   +1 more source

Comparative Study on Chaos Identification of Ionospheric Clutter From HFSWR

open access: yesIEEE Access, 2019
In addition to target echoes, high frequency surface wave radar (HFSWR) receives sea and ionospheric clutter. Among these clutters, the ionospheric clutter is dominant and significantly affects the detection performance of HFSWR, particularly when the ...
Lyu Zhe   +4 more
doaj   +1 more source

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