Results 31 to 40 of about 63,218 (203)

Intelligent Suppression Method for Ionospheric Clutter Based on Clustering and Greedy Strategy

Leida xuebao, 2020
Clutter is a term used for unwanted echoes in electronic systems, particularly in reference to radars. Such echoes are typically returned from ground, sea, rain, animals/insects, chaff, and atmospheric turbulences, and can cause serious performance ...
Yinsheng WEI, Jianyu ZHOU, Rongqing XU
doaj   +1 more source

Off-shore wind turbine clutter characteristics and identification in operational C-band weather radar measurements [PDF]

, 2017
The aim of this work is to update ground clutter classification methods in weather radar rainfall measurements to more accurately identify clutter pixels from wind farms.
Angulo Pita, Belmonte, Berenguer, Bodine, Bringi, Chandrasekar, Dufton, Gallardo-Hernando, Giuli, Gourley, Hall, Harrison, Hood, Hubbert, Islam, Isom, Lakshmanan, Lakshmanan, Liu, Marzano, Mendel, Norin, Norin, Park, Park, Pinto, Rico-Ramirez, Rico-Ramirez, Ryzhkov, Schaefer, Schubel, Seo, Sinden, World Meteorological Organization (WMO)   +33 more
core   +2 more sources

Clutter Suppression Approach for End-Fire Array Airborne Radar Based on Adaptive Segmentation

IEEE Access, 2019
End-fire array antenna is a kind of special radar antenna with beam pointing perpendicular to the normal direction of the array. Because of its low profile and directional radiation characteristics, it is especially suitable for blind zone compensation ...
Yongwei Li, Wenchong Xie, Huihuang Mao, Ruijie Dong   +3 more
doaj   +1 more source

Search Tracker: Human-derived object tracking in-the-wild through large-scale search and retrieval [PDF]

, 2016
Humans use context and scene knowledge to easily localize moving objects in conditions of complex illumination changes, scene clutter and occlusions. In this paper, we present a method to leverage human knowledge in the form of annotated video libraries ...
Bency, Archith J., De Leo, Carter, Karthikeyan, S., Manjunath, B. S., Sunderrajan, Santhoshkumar   +4 more
core   +2 more sources

Analysis of Speech Symptoms in Children who Present Characteristics of Cluttering, and Identification of Clutterers.

The Japan Journal of Logopedics and Phoniatrics, 2004
日本におけるcluttering症状を呈する児童の存在を仮説的に提唱し, 彼らの発話の特徴を明らかにするために, 聴覚的な印象で「発話速度が速く聞き取りづらい」と判断された児童18名を対象とし, 発話速度と非流暢性頻度 (3項目) , MLUの測定を行った.その結果, 発話特徴の結果が類似した傾向をもつ6群が浮かび上がった.6群中, 3群は「挿入・言い直し・filler」という非流暢性タイプの頻度が高い点が, 他の3群と顕著に異なっていた.また, その3群の医療的な診断歴, 知能検査, PRS検査結果の結果から, 6名全員にLD, ADHDなどの傾向が見られた.これらの特徴は欧米で研究されているclutteringの特徴と一致した.この結果から, 本研究において, (1 ...
Shoko Miyamoto, Kikuko Hayasaka
openaire   +2 more sources

Clutter Rank Estimation Method for Bistatic Radar Systems Based on Prolate Spheroidal Wave Functions

Remote Sensing
Bistatic radar exhibits spatial isomerism and diverse configurations, leading to unique clutter characteristics distinct from those of monostatic radar.
Xiao Tan, Zhiwei Yang, Xianghai Li, Lei Liu, Xiaorui Li   +4 more
doaj   +1 more source

GPU-Accelerated Computation of EM Scattering of a Time-Evolving Oceanic Surface Model II: EM Scattering of Actual Oceanic Surface

Remote Sensing, 2022
Based on marine environmental factors of different sea areas, a high-performance sea clutter time series modeling algorithm for the real sea surface is developed to study the amplitude mean and Doppler spectrum characteristics of sea clutter.
Longxiang Linghu, Jiaji Wu, Zhensen Wu, Gwanggil Jeon, Tao Wu   +4 more
doaj   +1 more source

Sea Clutter Suppression Method Based on Correlation Features

Journal of Marine Science and Engineering
Radar target detection in a sea clutter environment is of significant importance in both civilian and military applications, with the detection of small maneuvering targets being particularly challenging.
Zhen Li, Huafeng He, Liyuan Wang, Tao Zhou, Yizhe Sun, Yaomin He   +5 more
doaj   +1 more source

CFAR Detector Based on the Identification of Sea Clutter Distribution Characteristics

Journal 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, Xiaoming Liu, Shasha Du, Wanhan Li   +3 more
openaire   +1 more source

Experimental analysis of multistatic multiband radar signatures of wind turbines [PDF]

, 2016
This study presents the analysis of recent experimental data acquired using two radar systems at S-band and X-band to measure simultaneous monostatic and bistatic signatures of operational wind turbines near Shrivenham, UK.
Balleri, Alessio, Fioranelli, F., Griffiths, H. D., Ritchie, M.   +3 more
core   +2 more sources