Results 11 to 20 of about 4,108,289 (262)

Sub‐region non‐local mean denoising algorithm of synthetic aperture radar images based on statistical characteristics

IET Image Processing, 2022
When synthetic aperture radar (SAR) images are denoised by non‐local mean (NLM) algorithm, logarithmic transformation will lead to the loss of some image information. To keep the details and smooth the noise of the SAR images better, a new sub‐region NLM
Wei Ma, Zhihui Xin, Guisheng Liao, Yu Sun, Zhixu Wang, Jiayu Xuan   +5 more
doaj   +1 more source

Study on the Effective Region of Active Decoy Jamming to SAR Based on Time-delay Doppler-shift Method

Leida xuebao, 2013
The active decoy jamming to SAR based on the Time-Delay Doppler-Shift (TDDS) method takes effect in certain region. Proper utilization of jamming ensuring decoy quality is based on the study of the effective region. After the mathematical analysis of the
Liu Yong-cai, Wang We, Pan Xiao-yi, Dai Da-hai   +3 more
doaj   +1 more source

SARS-CoV-2 hijacks neutralizing dimeric IgA for nasal infection and injury in Syrian hamsters1

Emerging Microbes and Infections, 2023
Prevention of robust severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection in nasal turbinate (NT) requires in vivo evaluation of IgA neutralizing antibodies.
Biao Zhou, Runhong Zhou, Jasper Fuk-Woo Chan, Jianwei Zeng, Qi Zhang, Shuofeng Yuan, Li Liu, Rémy Robinot, Sisi Shan, Na Liu, Jiwan Ge, Hugo Yat-Hei Kwong, Dongyan Zhou, Haoran Xu, Chris Chung-Sing Chan, Vincent Kwok-Man Poon, Hin Chu, Ming Yue, Ka-Yi Kwan, Chun-Yin Chan, Chris Chun-Yiu Chan, Kenn Ka-Heng Chik, Zhenglong Du, Ka-Kit Au, Haode Huang, Hiu-On Man, Jianli Cao, Cun Li, Ziyi Wang, Jie Zhou, Youqiang Song, Man-Lung Yeung, Kelvin Kai-Wang To, David D. Ho, Lisa A. Chakrabarti, Xinquan Wang, Linqi Zhang, Kwok-Yung Yuen, Zhiwei Chen   +38 more
doaj   +1 more source

PRODUCTION OF ŠAR CHEESE – DEVELOPMENT OPPORTUNITY FOR ŠTRPCE MUNICIPALITY [PDF]

Ekonomika Poljoprivrede (1979), 2018
As a result of the climate in which it is produced, as well as its recognizable taste and quality, the Šar cheese is a high demand product on the market of Kosovo and Metohija.
Maja Mladenović, Radica Bojičić
doaj   +2 more sources

Matrix association region/scaffold attachment region: the crucial player in defining the positions of chromosome breaks mediated by bile acid-induced apoptosis in nasopharyngeal epithelial cells

BMC Medical Genomics, 2019
Background It has been found that chronic rhinosinusitis (CRS) increases the risk of developing nasopharyngeal carcinoma (NPC). CRS can be caused by gastro-oesophageal reflux (GOR) that may reach nasopharynx.
Sang-Nee Tan, Sai-Peng Sim
doaj   +1 more source

SENTINEL-1 BASED FLOOD MAPPING USING INTERFEROMETRIC COHERENCE AND INTENSITY CHANGE DETECTION APPROACH [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
This study presents a semi-automatic algorithm for mapping floods. Both Optical and Synthetic Aperture Radar (SAR) data are used to observe the flood that hit the Cukurova region of Adana (Turkey) in 2019. The performance of the interferometric coherence
I. Papila, U. Alganci, E. Sertel
doaj   +1 more source

Spaceborne Reflector SAR Systems with Digital Beamforming [PDF]

, 2012
Spaceborne Synthetic Aperture Radar (SAR) imaging enters an era where increasingly short revisit times, or large swath widths, respectively, and high spatial resolutions are requested.
Patyuchenko, Anton, Huber, Sigurd, Moreira, Alberto, Younis, Marwan, Krieger, Gerhard   +4 more
core   +1 more source

Shadow-Based False Target Identification for SAR Images

Remote Sensing, 2023
In radar electronic countermeasures, as the difference between jamming and targets continues to decrease, traditional methods that are implemented based on classical features are currently unable to meet the requirements of jamming detection.
Haoyu Zhang, Sinong Quan, Shiqi Xing, Junpeng Wang, Yongzhen Li, Ping Wang   +5 more
doaj   +1 more source

Denoising of SAR images [PDF]

, 2011
Matter of discussion in this Ph. D. thesis is SAR (Synthetic Aperture Radar) image denoising. Main elements of innovation are the introduction of SAR-BM3D, a denoising algorithm optimized for SAR data, and the introduction of a benchmark which enables ...
Poderico, Mariana
core   +1 more source

Staggered-SAR for High-Resolution Wide-Swath Imaging [PDF]

, 2012
Synthetic aperture radar (SAR) is a remote sensing technique, capable of providing high resolution images independent of weather conditions and sunlight illumination.
Villano, Michelangelo, M. Villano, Moreira, Alberto, A. Moreira, G. Krieger, Krieger, Gerhard   +5 more
core   +1 more source