Results 71 to 80 of about 206,444 (292)
, 1964 Design of inflatable life raft for aircrafts and ...
Radnofsky, M. I., Shewmake, G. A.
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Advanced Electronic Materials, EarlyView.III‐nitride semiconductors have revolutionized optoelectronics, enabling transformative technologies such as high‐efficiency LEDs and lasers. However, their use in intersubband optoelectronics has remained limited. This work marks an important step forward by demonstrating highly coherent inter‐well resonant tunneling injection in III‐nitride ...
Jimy Encomendero +6 more
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Space shuttle search and rescue experiment using synthetic aperture radar [PDF]
The feasibility of a synthetic aperture radar for search and rescue applications was demonstrated with aircraft experiments. One experiment was conducted using the ERIM four-channel radar and several test sites in the Michigan area.
Larson, R. W. +2 more
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A General and Efficient Framework for the Rapid Design of Miniaturized, Wideband, and High‐Bit RIS
Advanced Electronic Materials, EarlyView.A general and efficient framework is proposed for the rapid design of high‐performance reconfigurable intelligent surfaces (RISs). This framework integrates advanced antenna design techniques and incorporates various load types, quantities, and values to achieve the design of high‐performance RISs.
Jun Wei Zhang +14 more
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Power and Waveform Resource Allocation Method of LPI Netted Radar for Target Search and Tracking
IET Radar, Sonar & NavigationA joint power and waveform resource allocation algorithm is proposed for netted radar integrated search and tracking tasks with low probability of intercept.
Longhao Xie +4 more
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Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective
Advanced Electronic Materials, EarlyView.Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe +4 more
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Sensors, 2020 This paper presents the investigations on the improvement of search object detection during search and rescue (SAR) action at sea using thermal imaging and radar sensors.
Zbigniew Burciu +4 more
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Ku-Band rendezvous radar performance computer simulation model [PDF]
All work performed on the Ku-band rendezvous radar performance computer simulation model program since the release of the preliminary final report is summarized.
Goff, M. F., Magnusson, H. G.
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Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems
Advanced Electronic Materials, EarlyView.Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang +9 more
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Study to investigate and evaluate means of optimizing the Ku-band combined radar/communication functions for the space shuttle [PDF]
The performance of the space shuttle orbiter's Ku-Band integrated radar and communications equipment is analyzed for the radar mode of operation. The block diagram of the rendezvous radar subsystem is described. Power budgets for passive target detection
Alem, W., Udalov, S., Weber, C. L.
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