Results 81 to 90 of about 41,766 (196)

Functional MRI with active, fully implanted, deep brain stimulation systems: Safety and experimental confounds [PDF]

, 2007
We investigated safety issues and potential experimental confounds when performing functional magnetic resonance imaging (fMRI) investigations in human subjects with fully implanted, active, deep brain stimulation (DBS) systems.
Allen, P.J., Carmichael, D.W., Lemieux, L., Limousin-Dowsey, P., Pinto, S., Thobois, S., Thornton, J.S., Yousry, T.   +7 more
core  

3D Imaging Algorithm for Down-Looking MIMO Array SAR Based on Bayesian Compressive Sensing

International Journal of Antennas and Propagation, 2014
Down-looking MIMO array SAR can reconstruct 3D images of the observed area in the inferior of the platform of the SAR and has wide application prospects.
Xiaozhen Ren, Lina Chen, Jing Yang
doaj   +1 more source

Innovative Rotating SAR Mode for 3D Imaging of Buildings

Remote Sensing
Three-dimensional SAR imaging of urban buildings is currently a hotspot in the research area of remote sensing. Synthetic Aperture Radar (SAR) offers all-time, all-weather, high-resolution capacity, and is an important tool for the monitoring of building health.
Yun Lin, Ying Wang, Yanping Wang, Wenjie Shen, Zechao Bai   +4 more
openaire   +2 more sources

Improvement for UAV Urban SAR Tomography Based on Cylindrical Wave Model With Elevation Constraints

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Synthetic aperture radar (SAR) tomography (TomoSAR) technology can solve the layover problem in SAR images and achieve three-dimensional (3D) imaging. Unmanned aerial vehicle (UAV) TomoSAR has developed rapidly in the field of urban surveying and mapping
Rui Guo, Zishuai Ren, Yuxin Gao, Lianhuan Wei, Yuxiao Qin, Gang Xu   +5 more
doaj   +1 more source

A Multi-Parameter Calibration Method Based on the Newton Method and the Genetic Algorithm in Airborne Array Synthetic Aperture Radar

Remote Sensing
Airborne array synthetic aperture radar (SAR) can achieve three-dimensional (3D) imaging of the observed scene in a single flight. Nevertheless, the imaging process of airborne array SAR is subject to various parameter errors due to unstable factors ...
Dawei Wang, Zhenhua Li, Fubo Zhang, Longyong Chen   +3 more
doaj   +1 more source

A Method for Mapping Strong Scattering Information in SAR Images to 3D Target Geometry Using a Customized Differentiable SAR Simulator

Journal of Remote Sensing
Synthetic aperture radar (SAR) is widely used for target observation and information acquisition in Earth remote sensing. Currently, deeply exploring target information in SAR images and analyzing target scattering characteristics have become an ...
Zinan Liu, Shengren Niu, Xiaolan Qiu, Lingxiao Peng, Chibiao Ding   +4 more
doaj   +1 more source

SAR-PATT: A Physical Adversarial Attack for SAR Image Automatic Target Recognition

Remote Sensing
Deep neural network-based synthetic aperture radar (SAR) automatic target recognition (ATR) systems are susceptible to attack by adversarial examples, which leads to misclassification by the SAR ATR system, resulting in theoretical model robustness ...
Binyan Luo, Hang Cao, Jiahao Cui, Xun Lv, Jinqiang He, Haifeng Li, Chengli Peng   +6 more
doaj   +1 more source

A Three-Dimensional Imaging Method for Unmanned Aerial Vehicle-Borne SAR Based on Nested Difference Co-Arrays and Azimuth Multi-Snapshots

Remote Sensing
Due to its miniature size and single-pass nature, Unmanned Aerial Vehicle (UAV)-borne array synthetic aperture radar (SAR) is capable of obtaining three-dimensional (3D) electromagnetic scattering information with a low cost and high efficiency, making ...
Ruizhe Shi, Yitong Luo, Zhe Zhang, Xiaolan Qiu, Chibiao Ding   +4 more
doaj   +1 more source

Trajectory Planning Method for UAV-through-the-wall 3D SAR Based on a Genetic Algorithm

Leida xuebao
Due to height limitations, the traditional handheld or vehicle-mounted Through-the-Wall Radar (TWR) cannot provide the perspective imaging of internal targets in urban high-rise buildings.
Xiaopeng YANG, Zhongjie MA, Shichao ZHONG, Xiaodong QU, Xiaolu ZENG   +4 more
doaj   +1 more source

Transceiver 16-Channel Coaxial-End Dipole Array for Combined Head and C-Spine MRI at 9.4 T. [PDF]

NMR Biomed
Solomakha GA, Glang F, May MW, Mueller S, Walzog J, Aghaeifar A, Bosch D, Bause J, Kraff O, Scheffler K, Quick HH, Avdievich NI.   +11 more
europepmc   +1 more source