Results 41 to 50 of about 1,656 (165)
Generalized Ambiguity Function for Bistatic FDA Radar Joint Velocity, Range, and Angle Parameters
Remote SensingThe bistatic frequency diverse array (FDA) radar system is designed to exploit the beam autoscanning of FDA radar, providing a novel solution to address spatial synchronization challenges in bistatic radar architecture, unleashing bistatic radar’s ...
Xuchen Gao +6 more
doaj +1 more source
IET Radar, Sonar & Navigation, 2007 With the present revival of interest in bistatic radar systems, research in that area has gained momentum. Given some of the strategic advantages for a bistatic configuration, and tech- nological advances in the past few years, large-scale implementation of the bistatic systems is a scope for the near future.
Mishra, Amit Kumar, Mulgrew, Bernard
openaire +2 more sources
Frequency Selective Rasorber With Low Insertion Loss and Ultra‐Broadband Scattering Reduction
Advanced Physics Research, Volume 5, Issue 2, February 2026.We present a dual‐polarization broadband frequency selective rasorber featuring a transmission window in the middle of its absorption band. The proposed FSR achieves a –10 dB reflection band over 3.68–16.94 GHz with a fractional bandwidth of 128.6%, featuring a minimum insertion loss of 0.3 dB at 10.3 GHz.
Ziming Yu +4 more
wiley +1 more source
Impacts of Atmospheric Rivers in Central Greenland: Snowfall, Clouds, and Atmospheric State
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 2, 28 January 2026.Abstract Atmospheric rivers (ARs) are long bands of strong horizontal water vapor transport responsible for over 90% of total integrated vapor transport (IVT) in extratropical and polar regions. Using a 12‐year record (2010–2022) of ground‐based remote sensing, radiosonde, snow stake, and reanalysis data from Summit Station, Greenland, we quantify the ...
A. E. Wedum +5 more
wiley +1 more source
Advanced Functional Materials, Volume 36, Issue 5, 15 January 2026.A structurally integrated multiscale hierarchical metamaterial composite (MHMC), inspired by the synergistic architecture of reinforced concrete, achieves simultaneous enhancement of thermal, electromagnetic, and mechanical functionalities. By combining a carbon black‐based mechanical metamaterial with a porosity‐graded cellulose acetate aerogel, this ...
Jeongwoo Lee +9 more
wiley +1 more source
A Modified Hierarchical Vision Transformer for Soil Moisture Retrieval From CYGNSS Data
Water Resources Research, Volume 62, Issue 1, January 2026.Abstract This research introduces a new deep learning (DL) framework, multi‐head self‐attention‐aided vision Transformer (MSA‐ViT), for soil moisture (SM) retrieval using Cyclone Global Navigation Satellite System (CYGNSS) data. We first assess the sensitivity of CYGNSS reflectivity (Γ) $({\Gamma })$ to SM, demonstrating a strong physical linkage ...
Qingyun Yan +4 more
wiley +1 more source
The First Results of Ionospheric Skywave Propagation Experiment Over Taiwan
Radio Science, Volume 61, Issue 1, January 2026.Abstract An ionospheric over‐the‐horizon propagation experiment was carried out in Taiwan to investigate characteristics of ionospheric F layer skywave propagation at frequencies 4–12 MHz. Experimental results show that there are prominent diurnal variations in the incident angle, virtual height and plasma frequency at reflection height, which are ...
Hung‐Shi Lin +3 more
wiley +1 more source
Research on Full-polarization Bistatic Scattering Characteristics of Aircraft
Leida xuebao, 2016 Whole space polarimetric bistatic scattering data of full-size aircraft targets were calculated via the mature electromagnetic calculation software. The fluctuation statistics characteristic of the polarimetric bistatic Radar Cross-Section (RCS) was ...
Ai Xiaofeng +4 more
doaj +1 more source
Increased Range Bistatic Scatter Radio
IEEE Transactions on Communications, 2014 Scatter radio achieves communication by reflection and requires low-cost and low-power RF front-ends. However, its use in wireless sensor networks (WSNs) is limited, since commercial scatter radio (e.g. RFID) offers short ranges of a few tens of meters.
Μπλετσας Αγγελος(http://users.isc.tuc.gr/~abletsas) +3 more
openaire +2 more sources
A Novel Higher Order Local Time‐Stepping Technique for the DGTD–FDTD Method
Electronics Letters, Volume 62, Issue 1, January/December 2026.A novel higher order local time‐stepping (LTS) technique is developed for the DGTD–FDTD (discontinuous Galerkin time‐domain–finite difference time‐domain) method to accelerate transient electromagnetic simulations. By applying a higher order equation to boundary elements between LTS classes, the method reduces approximation errors caused by LTS.
Qingkai Wu +5 more
wiley +1 more source