Results 71 to 80 of about 2,631 (195)
Cognitive Radar Waveform Optimization Based on Mutual Information and Kalman filtering
Entropy, 2018 A new strategy to optimizing the waveforms of cognitive radar under transmitted power constraint is presented. Our scheme is to enhance the performance of target estimation by minimizing the MSE (mean-square error) of the estimates of target scattering ...
Yu Yao, Junhui Zhao, Lenan Wu
doaj +1 more source
Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.Abstract The NASA/CNES Surface Water and Ocean Topography (SWOT) swath‐mapping radar altimetry satellite mission, launched in December 2022, provides repeat‐track coverage to about ±78.2° latitude every 21 days, sampling many of Antarctica's most dynamic ice shelves that play key roles in constraining mass loss from the grounded ice sheet ...
S. L. Howard +5 more
wiley +1 more source
Space‐Time‐Coding Metasurfaces Enabling Programmable Range‐Angle‐Dependent Energy Auto‐Scanning
Nanophotonics, Volume 15, Issue 14, 27 July 2026.This paper presents a novel energy auto‐scanning system based on a space‐time‐coding metasurface. By applying progressive time‐delayed, time‐varying phase modulation, the system generates non‐uniform, temporally evolving electromagnetic field distributions across both angle and range.
Yuzhen Chen +3 more
wiley +1 more source
Nanophotonics, Volume 15, Issue 14, 27 July 2026.A diversely time‐modulated metasurface enables broadband co‐modulation of fully polarimetric radar cross section and high‐resolution range profiles. By integrating anti‐parallel PIN diodes and programmable temporal coding, the platform dynamically redistributes scattering among HH/VV and HV/VH channels, generating tunable target weakening, false ...
Hantao Xu +9 more
wiley +1 more source
Spatial Information-Theoretic Optimal LPI Radar Waveform Design. [PDF]
Entropy (Basel), 2022 Chen J, Wang J, Zhang Y, Wang F, Zhou J.
europepmc +1 more source
Noninvasive Intelligent Brain‐Metasurface System for Real‐Time Electromagnetic Wave Manipulation
Nanophotonics, Volume 15, Issue 13, 13 July 2026.A noninvasive intelligent brain–computer interface (BCI) is integrated with a reconfigurable metasurface to establish a direct neural‐to electromagnetic transduction pathway for real time, multimodal wave control. By combining convolutional‐neural‐network‐based decoding of motor‐imagery electroencephalography (EEG) signals with threshold‐based ...
Xiao Hai +3 more
wiley +1 more source
Lean Neural Networks for Autonomous Radar Waveform Design. [PDF]
Sensors (Basel), 2022 Baietto A +5 more
europepmc +1 more source
Advanced Functional Materials, Volume 36, Issue 58, 20 July 2026.Electrochemical etching provides an eco‐friendly alternative to hazardous HF methods for MXene production. This approach facilitates the selective isolation of the A‐layer from MAX phases with tunable surface terminations. Controlling voltage, electrolytes, temperature, and duration enables the optimal structural integrity. Nevertheless, existing scale
Jagdeep Singh +4 more
wiley +1 more source
Weaving Intelligence: Thermally Drawn Multimaterial Fibers Toward AI‐Enabled Smart Textiles
Advanced Materials, Volume 38, Issue 40, 17 July 2026.Thermally drawn multimaterial fibers are rapidly advancing as intelligent structural units for next‐generation smart textiles. Integrating multimaterial architectures with neuromorphic and spiking‐neural‐network principles enables fabrics that can sense, compute, and adapt autonomously.
Vuong Dinh Trung +9 more
wiley +1 more source
Advanced Materials Technologies, Volume 11, Issue 13, 8 July 2026.Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu +8 more
wiley +1 more source