Results 31 to 40 of about 9,694,468 (324)

Dolphin-inspired target detection for sonar and radar [PDF]

open access: yes, 2014
Gas bubbles in the ocean are produced by breaking waves, rainfall, methane seeps, exsolution, and a range of biological processes including decomposition, photosynthesis, respiration and digestion.
Leighton, T.G.   +3 more
core   +1 more source

Dimensionality reduction bistatic radar clutter suppression technique based on three-dimensional cross-beam

open access: yesXibei Gongye Daxue Xuebao, 2023
Aiming at the problem that the non-stationary of airborne bistatic radar clutter reduces the performance of traditional clutter suppression algorithm, this paper first formulates airborne bistatic radar clutter model, and then analyzes the bistatic radar
CHENG Yufeng   +4 more
doaj   +1 more source

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

open access: yesThe 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 ...
Miyamoto, Shoko, Hayasaka, Kikuko
openaire   +2 more sources

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

open access: yesLeida 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

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

open access: yesRemote Sensing
Bistatic radar exhibits spatial isomerism and diverse configurations, leading to unique clutter characteristics distinct from those of monostatic radar.
Xiao Tan   +4 more
doaj   +1 more source

When Browsing Gets Cluttered: Exploring and Modeling Interactions of Browsing Clutter, Browsing Habits, and Coping

open access: yesInternational Conference on Human Factors in Computing Systems, 2023
In this paper, we investigate browsing clutter, which refers to cluttered experiences of users due to buildup of disorganized browser elements and information.
Rongjun Ma   +3 more
semanticscholar   +1 more source

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

open access: yesIEEE 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   +3 more
doaj   +1 more source

Clutter Modeling and Characteristics Analysis for GEO Spaceborne-Airborne Bistatic Radar

open access: yesRemote Sensing
The spaceborne-airborne bistatic radar (SABR) system employs a spaceborne transmitter and an airborne receiver, offering significant advantages, such as wide coverage, outstanding anti-stealth capabilities, and notable resistance to jamming.
Shuo Zhang   +5 more
semanticscholar   +1 more source

Infrared Small Target Detection Method Based on Frequency Domain Clutter Suppression and Spatial Feature Extraction

open access: yesIEEE Access, 2023
With the continuous development of infrared technology, the application of infrared imagery is increasingly widespread. Nonetheless, infrared imagery suffers from low contrast and high noise characteristics, making it challenging to detect and recognize ...
Chengpeng Duan   +5 more
semanticscholar   +1 more source

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

open access: yesRemote 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   +4 more
doaj   +1 more source

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