Results 21 to 30 of about 1,026,223 (287)

Multifeature Fusion Neural Network for Oceanic Phenomena Detection in SAR Images

open access: yesSensors, 2019
Oceanic phenomena detection in synthetic aperture radar (SAR) images is important in the fields of fishery, military, and oceanography. The traditional detection methods of oceanic phenomena in SAR images are based on handcrafted features and detection ...
Zhuofan Yan   +5 more
doaj   +1 more source

Design of a demestic-producing astronal-level low-voltage pulse power supply

open access: yesDianzi Jishu Yingyong
Synthetic Aperture Radar (SAR) is an active earth observation system that can observe the earth 24/7. Pulse power supply is an important component of SAR operation.
Li Shuanggang, Xu Huan, Gao Zheng
doaj   +1 more source

Optical and SAR Remote Sensing Synergism for Mapping Vegetation Types in the Endangered Cerrado/Amazon Ecotone of Nova Mutum—Mato Grosso

open access: yesRemote Sensing, 2019
Mapping vegetation types through remote sensing images has proved to be effective, especially in large biomes, such as the Brazilian Cerrado, which plays an important role in the context of management and conservation at the agricultural frontier of the ...
Flávia de Souza Mendes   +4 more
doaj   +1 more source

Evaluating Water Quality of Mahrut River, Diyala, Iraq for Irrigation [PDF]

open access: yesEngineering and Technology Journal, 2015
Water Quality of Mahrut River, passing through Muqdadiyah, a city in Diyala, Iraq, was evaluated for irrigation using the Canadian Council of Ministers of the Environment Water Quality Index (CCME WQI).
Abdul Hameed M. Jawad Al Obaidy   +3 more
doaj   +1 more source

Faz hatalı SAR verileri için karesel olmayan düzenlileştirmeye dayalı bir görüntü oluşturma tekniği (A nonquadratic regularization based image reconstruction technique for SAR data with phase errors) [PDF]

open access: yes, 2009
Sentetik Açıklıklı Radar (SAR) görüntülemesinde karşılaşılan önemli problemlerden biri faz hatalarıdır. Faz hataları, SAR’ın bulunduğu platformla hedef arasındaki uzaklığın tam olarak ölçülememesi ya da gönderilen işaretlerin atmosferdeki türbülansa ...
Cetin, Mujdat   +3 more
core   +1 more source

SAR Pancake Ice Thickness Retrieval in the Terra Nova Bay (Antarctica) during the PIPERS Expedition in Winter 2017

open access: yesRemote Sensing, 2019
Pancake and frazil ice represent an important component of the Arctic and Antarctic cryosphere, especially in marginal ice zones. The retrieval of their thickness by remote sensing is, in general, a difficult task.
Giuseppe Aulicino   +2 more
doaj   +1 more source

Guided patch-wise nonlocal SAR despeckling

open access: yes, 2018
We propose a new method for SAR image despeckling which leverages information drawn from co-registered optical imagery. Filtering is performed by plain patch-wise nonlocal means, operating exclusively on SAR data.
Cozzolino, Davide   +4 more
core   +1 more source

Comparison of uplink SAR values in train environment for different wireless technologies [PDF]

open access: yes, 2015
A comparison of uplink Specific Absorption Rate (SAR) values in a train environment for different wireless technologies using macrocells or femtocells is presented. The comparison is based on both simulations and real-life experiments.
Aerts, Sam   +4 more
core   +1 more source

Mesoscale structures viewed by SAR and AVHRR near the Canary islands

open access: yesScientia Marina, 2001
Comparison of Synthetic Aperture Radar and Advanced Very High Resolution Radiometry images of sea surface backscatter and temperature during the peak of the summer Trade winds reveals many aspects of the regional oceanography of the Canary Islands.
E. D. Barton   +3 more
doaj   +1 more source

An Efficient Codebook Initialization Approach for LBG Algorithm

open access: yes, 2011
In VQ based image compression technique has three major steps namely (i) Codebook Design, (ii) VQ Encoding Process and (iii) VQ Decoding Process. The performance of VQ based image compression technique depends upon the constructed codebook. A widely used
Pal, Arup Kumar, Sar, Anup
core   +1 more source

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