Results 61 to 70 of about 754,287 (199)

Joint Decoupling Optimization of Frequency Offsets and Array Elements for Frequency Diverse Arrays

open access: yesInternational Journal of Antennas and Propagation, Volume 2026, Issue 1, 2026.
Frequency diverse array (FDA) has a distance‐angle–dependent beam direction map, which has a greater application advantage than phased array. However, due to the distance‐angle coupling and periodicity of its beam direction map, it makes the parameter information of the target obtained through FDA have ambiguous phenomena. Currently, researchers mostly
Yuming Lu   +5 more
wiley   +1 more source

非理想デバイスを用いたレーダによる生体測位法に関する研究 [PDF]

open access: yes
岩手大学博士(工学)原著論文 Frequency Error Compensation of Unsynchronized Bistatic CW-MIMO Radar for Multiple Human-Body Localization Abudusaimi Abuduaini, Nobuyuki Shiraki, Naoki Honma, Takeshi Nakayama, Shoichi Iizuka IEEE Transactions on Biomedical Circuits and ...
ABUDUAINI, Abudusaimi
core   +1 more source

Efficient Time-Domain Image Formation with Precise Topography Accommodation for General Bistatic SAR Configurations [PDF]

open access: yes, 2011
Due to the lack of an appropriate symmetry in the acquisition geometry, generalised bistatic SAR cannot benefit from the two main properties of low-to-moderate resolution monostatic SAR: azimuth-invariance and topography-insensitivity.
Marc Rodriguez-Cassola   +7 more
core   +1 more source

Radar Polarimetry in Glaciology: Theory, Measurement Techniques, and Scientific Applications for Investigating the Anisotropy of Ice Masses

open access: yesReviews of Geophysics, Volume 63, Issue 4, December 2025.
Abstract Dielectric anisotropy in ice alters the propagation of polarized radio waves, so polarimetric radar sounding can be used to survey anisotropic properties of ice masses. Ice anisotropy is either intrinsic, associated with ice‐crystal orientation fabric (COF), or extrinsic, associated with material heterogeneity, such as bubbles, fractures, and ...
Benjamin H. Hills   +30 more
wiley   +1 more source

A Factor Graph Approach to Moving Target Localisation Using BR Measurements in Distributed TDM MIMO Radars

open access: yesElectronics Letters, Volume 61, Issue 1, January/December 2025.
A novel factor graph method is proposed for moving target localisation in distributed time division multiplexing multiple‐input multiple‐output radar systems, where target positions vary when reflecting time‐sequential signals. An efficient iterative message passing algorithm is developed to solve this challenging problem, enabling joint location and ...
Zehua Yu   +3 more
wiley   +1 more source

Acceleration of parasitic multistatic radar system using GPGPU [PDF]

open access: yes, 2011
This dissertation details the implementation of PMR [Parasitic Multistatic Radar] signal processing chain in the GPGPU [General Purpose Graphic Processing Units] platform.
John, Mathew
core   +1 more source

Performance Prediction and Verification for the Synchronization Link of TanDEM-X [PDF]

open access: yes, 2007
Bistatic Synthetic Aperture Radar (SAR) systems have a high potential for scientific, commercial and security applications. One of the benefits is the possibility to generate digital elevation models using bistatic interferometry.
Robert Metzig   +9 more
core   +1 more source

IGWO‐Based Single Snapshot Error Correction for Motion Array in DOA Estimation

open access: yesElectronics Letters, Volume 61, Issue 1, January/December 2025.
This paper proposes a motion‐based synthetic array framework with error correction tailored for unmanned aerial vehicle (UAV) platforms, along with a multidimensional error calibration method. Experimental results demonstrate that the proposed approach enhances the array aperture (AA) and degrees of freedom (DOF), while enabling highly accurate and ...
Shuxun Wu   +4 more
wiley   +1 more source

Performance analysis of ground‐based long baseline radar distributed systems for space situational awareness

open access: yesIET Radar, Sonar & Navigation
Detection of space objects is a key component of space situational awareness, which could help prevent and minimise space collisions. While there have been lots of radar systems designed to detect space objects, few of them have dealt with long baseline ...
Sebastián Díaz Riofrío   +4 more
doaj   +1 more source

Integrated Self-Contained Trajectory Estimation and Multistatic SAR Imaging in a Non-Static Uncoupled Bistatic Radar Network

open access: yesIEEE Journal of Microwaves
Radar imaging performance can be significantly improved by creating synthetic apertures along a radar sensor's trajectory compared to standard MIMO imaging radars.
Patrick Fenske   +4 more
doaj   +1 more source

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