Results 161 to 170 of about 220,305 (309)

Ultra Wideband Radar Cross Section Reduction by using non-Resonant Unit Cells. [PDF]

Sci Rep, 2020
Nadi M, Sedighy SH, Khalaj-Amirhosseini M.   +2 more
europepmc   +1 more source

Electromagnetic backscattering by corner reflectors [PDF]

The analysis of the backscatter cross section of a dihedral corner reflector, using Geometrical Theory of Diffraction (GTD) and Physical Theory of Diffraction (PTD), is completed in the azimuthal plane, and very good agreement with experimental results ...
Balanis, C. A., Griesser, T.
core   +1 more source

VAE+DDPG: An Attention‐Enhanced Variational Autoencoder for Deep Reinforcement Learning‐Based Autonomous Navigation in Low‐Light Environments

Advanced Intelligent Systems, EarlyView.
Variational Autoencoder+Deep Deterministic Policy Gradient addresses low‐light failures of infrared depth sensing for indoor robot navigation. Stage 1 pretrains an attention‐enhanced Variational Autoencoder (Convolutional Block Attention Module+Feature Pyramid Network) to map dark depth frames to a well‐lit reconstruction, yielding a 128‐D latent code ...
Uiseok Lee, Chanhong Hwang, Hyunseok Kang, Yechan Park, Hangwoo Jin, Tuan Anh Nguyen, Eunmi Choi, Dugki Min   +7 more
wiley   +1 more source

Radar Cross Section Near-Field to Far-Field Prediction for Isotropic-Point Scattering Target Based on Regression Estimation. [PDF]

Sensors (Basel), 2020
Liu Y, Hu W, Zhang W, Sun J, Xing B, Ligthart L.   +5 more
europepmc   +1 more source

User's manual for three dimensional FDTD version C code for scattering from frequency-independent dielectric and magnetic materials [PDF]

The Penn State Finite Difference Time Domain Electromagnetic Scattering Code Version C is a three dimensional numerical electromagnetic scattering code based upon the Finite Difference Time Domain Technique (FDTD). The supplied version of the code is one
Beggs, John H., Kunz, Karl S., Luebbers, Raymond J.   +2 more
core   +1 more source

MusicSwarm: Biologically Inspired Intelligence for Music Composition

Advanced Intelligent Systems, EarlyView.
Biologically inspired swarms of frozen foundation models self‐organize to compose complex music without fine‐tuning. By coordinating through stigmergic signals, decentralized agents dynamically evolve specialized roles and adapt to solve complex tasks.
Markus J. Buehler
wiley   +1 more source

Polarization-controlled coding metasurface with phase cancellation and diffusion for enhanced radar cross section reduction. [PDF]

Sci Rep
Ubaid Ullah M, Abdul Latef T, Othman M, Yamada Y, Abdrabou A, Khalid R, Dong L, Tengku Mohmed Noor Izam TF, Noordin KA, Kamardin K, Wei Z.   +10 more
europepmc   +1 more source

Gain-Enhanced Metamaterial Absorber-Loaded Monopole Antenna for Reduced Radar Cross-Section and Back Radiation. [PDF]

Materials (Basel), 2020
Jeong H, Kim Y, Tentzeris MM, Lim S.
europepmc   +1 more source

A planar near-field scanning technique for bistatic radar cross section measurements [PDF]

A progress report on the development of a bistatic radar cross section (RCS) measurement range is presented. A technique using one parabolic reflector and a planar scanning probe antenna is analyzed. The field pattern in the test zone is computed using a
Tuhela-Reuning, S., Walton, E. K.
core   +1 more source

Concentric Rheostat Decoupled 3D Force‐Sensing Module for Smart Table Tennis Training

Advanced Intelligent Systems, EarlyView.
A 3D‐printed sensor array intrinsically decouples normal and shear forces through a unique concentric structural design. By integrating piezoresistive, sliding area‐varying capacitive, and concentric rheostat mechanisms, the 12‐sensor module achieves high‐resolution 3D force mapping without complex algorithms.
Zhe Liu, Kunlin Wu, Bingrui Sim, Wenjie Lai, Xingyu Chen, Jiajun Liu, Yifan Wang, Soo Jay Phee   +7 more
wiley   +1 more source