Results 11 to 20 of about 254,830 (314)

A SAR Conjugate Mirror [PDF]

open access: yesIEEE Geoscience and Remote Sensing Letters, 2006
A radar transponder was constructed, which modifies the received signal such that its complex conjugate is returned to the radar, qualities of the conjugate mirror used in optics and acoustics. For a monostatic synthetic aperture radar (SAR), a perfect conjugate mirror will reflect a signal back to the radar with no phase shift due to the propagation ...
Hounam, David
openaire   +3 more sources

SAR-SIFT: A SIFT-Like Algorithm for SAR Images [PDF]

open access: yesIEEE Transactions on Geoscience and Remote Sensing, 2015
The scale-invariant feature transform (SIFT) algorithm and its many variants are widely used in computer vision and in remote sensing to match features between images or to localize and recognize objects. However, mostly because of speckle noise, it does not perform well on synthetic aperture radar (SAR) images.
Julie Delon   +2 more
exaly   +3 more sources

Construction of Time-series Displacement Data of Yongdam Dam Based on PSInSAR Analysis of Satellite C-band SAR Images [PDF]

open access: yesGeo Data, 2023
The increase in water-related disasters due to climate change has a significant impact on the stability of water resource facilities. The displacement of a water resource facility is one of the important indicators to evaluate the stability of the ...
Taewook Kim   +5 more
doaj   +1 more source

SARS and masks [PDF]

open access: yesJournal of Hospital Infection, 2004
Since its emergence in the first months of 2003, the epidemic of severe acute respiratory syndrome (SARS) has been characterized by rapid spread among healthcare workers (HCWs). Uncertainty about the route of transmission of the virus suggests the use of respirators that can protect HCWs against both droplet nuclei and droplet transmission, rather than
Puro Vincenzo   +2 more
openaire   +2 more sources

IDENTIFICATION OF INLAND-EXCESS WATER PATCHES BASED ON LiDAR AND SENTINEL 1 DATA [PDF]

open access: yesNatural Resources and Sustainable Development, 2020
Understanding the habitat is essential for economic production. As a result of rapidly changing processes, features of habitats may be modified, it may be affected by a wide variety of factors.
Gálya Bernadett   +6 more
doaj   +1 more source

A Review of Land Cover Information using H/A/Α Polarimetric Decomposition of Dual Pol Sar Data

open access: yesJournal of Landscape Ecology, 2022
Information related to land use and land cover is an inevitable prerequisite for formulating any decision making for land information system. The easiest and most effective way to gather such information is via using Earth observation satellites ...
Sinha Suman
doaj   +1 more source

A Wideband Wearable Antenna with AMC Ground Plane for WBAN Applications [PDF]

open access: yesRadioengineering, 2022
A flexible wearable antenna with wideband characteristics and having a conical radiation pattern which is suitable for ON body application is presented. To realize a compact antenna size, characteristic modal (CM) analysis is performed initially, and the
S. Bhattacharjee   +3 more
doaj  

Assessing Combinations of Landsat, Sentinel-2 and Sentinel-1 Time series for Detecting Bark Beetle Infestations

open access: yesGIScience & Remote Sensing, 2023
Bark beetle infestations are among the most substantial forest disturbance agents worldwide. Moreover, as a consequence of global climate change, they have increased in frequency and in the size and number of affected areas.
Simon König   +4 more
doaj   +1 more source

Estado da Arte do Sensoriamento Remoto por Radar: Fundamentos, Sensores, Processamento de Imagens e Aplicações

open access: yesRevista Brasileira de Cartografia, 2020
Este artigo aborda o estado da arte do sensoriamento remoto por radar e foi elaborado para fazer parte da edição especial de comemoração dos 50 anos desta revista.
Edson Eyji Sano   +2 more
doaj   +1 more source

Estimation Method of SAR Doppler Frequency Rate Based on FrFT

open access: yesXibei Gongye Daxue Xuebao, 2020
Due to the problem that the existing Doppler frequency rate estimation method is limited by the estimation accuracy, a novel estimation method of Doppler frequency rate is proposed.

doaj   +1 more source

Home - About - Disclaimer - Privacy