Results 31 to 40 of about 2,362,034 (304)
A Triple-Mode Performance-Optimized Reconfigurable Incremental ADC for Smart Sensor Applications
IEEE Access, 2019 This paper proposes a triple-mode discrete-time incremental analog-to-digital converter (IADC) employing successive approximation register (SAR)-based zooming and extended counting (EC) schemes to achieve programmable trade-off capability of resolution ...
Byungjoo Oh +2 more
doaj +1 more source
SAR minimum entropy autofocusing based on Prewitt operator
PLOS ONE, 2023 Current autofocus algorithms utilizing image criteria impose a significant computational burden. Therefore, this paper proposes a computationally efficient autofocus algorithm combined with SAR image feature points, employing the Prewitt operator to obtain the SAR image features.
Xiaoze Hou, Yanheng Ma
openaire +3 more sources
Analysis of Methods for Reconstructing Periodically Missed SAR Data Acquired Close to Nyquist [PDF]
, 2012 The cooperative nature of the TanDEM-X mission bistatic operation allows the periodically exchange of information between transmitter and receiver over the SAR acquisition.
Marc Rodriguez-Cassola +7 more
core +1 more source
Ship Detection in SAR Images via Cross-Attention Mechanism
Canadian Journal of Remote Sensing, 2022 Deep learning has been widely applied to ship detection in Synthetic Aperture Radar (SAR) images. Unlike optical images, the current object detection methods have the problem of weak feature representation due to the low object resolution in SAR images ...
Yilong Lv, Min Li
doaj +1 more source
New Proposal for Search and Rescue in the Sea [PDF]
TransNav, 2011 Currently the security of a ship would be reduced if among its systems don't have some able to indicate its position, providing the necessary data to try that the Rescue System begin a rescue in the event of emergency or catastrophe.
Isidro Padron Armas +4 more
doaj
DATA ACQUISITION AND MULTITHREAD PROCESSING IN STEPPED-FREQUENCY NOISE GROUND-BASED SAR FOR 2D REAL-TIME IMAGING [PDF]
Radio Physics and Radio AstronomySubject and Purpose. In the paper, the real-time operation of the data acquisition (DAQ) system for stepped-frequency noise ground-based Synthetic Aperture Radar (SAR) is described with an emphasis on DAQ system characteristics and software in an effort ...
K. Lukin +4 more
doaj +1 more source
SAR ATR for Limited Training Data Using DS-AE Network
Sensors, 2021 Although automatic target recognition (ATR) with synthetic aperture radar (SAR) images has been one of the most important research topics, there is an inherent problem of performance degradation when the number of labeled SAR target images for training a
Ji-Hoon Park, Seung-Mo Seo, Ji-Hee Yoo
doaj +1 more source
Remote Sensing, 2018 With the increasing requirement for resolution, the negligence of topography variations causes serious phase errors, which leads to the degradation of the focusing quality of the synthetic aperture (SAR) imagery, and geometric distortion.
Chunhui Lin +3 more
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Research Outline of Airborne MIMO-SAR System with Same Time-frequency Coverage
Leida xuebao, 2018 To solve the bottlenecks associated with traditional Synthetic Aperture Radar (SAR) systems related to the limitations of single working models and core indexes, a new system known as Multi-Input Multi-Output (MIMO) SAR was recently proposed.
Wang Jie +4 more
doaj +1 more source
Impact on the Performance of Search and Rescue Team by Cloud-Based Services: A Case Study of TransAsia Flight GE235 [PDF]
MATEC Web of Conferences, 2019 The purpose of this study is to determine the significant gap between the suitable objective environmental conditions and the real performance outcomes when Taipei fire fighter officers and volunteer fire fighters handled the TransAsia GE235 incident ...
Fu Yan-Kai +2 more
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