Results 31 to 40 of about 243 (134)

Full‐Wave Electromagnetic Analysis of Forward Scatter Radar Cross Section for Shahed‐Type UAV Detection

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
Full‐wave electromagnetic simulation of forward scatter radar cross section (FSRCS) of a Shahed‐type UAV. The 3D model is combined with angular scattering patterns, illustrating the dependence of forward scattering on observation angle and polarisation.
Oleksii Bielousov, Ivan Bokhan, Vasyl Lykhograi   +2 more
wiley   +1 more source

Optimizing Circular MIMO Array Imaging Using Partial Equivalent Method for Sidelobe Suppression

Remote Sensing
In this paper, we propose a novel approach for circular Multiple-Input Multiple-Output (MIMO) array imaging, termed the Partial Equivalent Method (PEM), aimed at sidelobe suppression.
Yiming Dai, Zhikun Zheng, Hong Ye, Xu Zhang, Jun Yang, Guangsheng Deng, Ying Li, Zhiping Yin   +7 more
doaj   +1 more source

Fast Angle Estimation and Sensor Self-Calibration in Bistatic MIMO Radar With Gain-Phase Errors and Spatially Colored Noise

IEEE Access, 2020
Multiple-input multiple-output (MIMO) radars are essential in many Internet-of-Things (IoT) applications. Gain-phase error calibration is an important branch in MIMO radar.
Guanqun Sheng, Han Wang, Fang-Qing Wen, Xinhai Wang   +3 more
doaj   +1 more source

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

International 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, Qinlin Li, Kefei Liao, Ningbo Xie, Hanbo Chen, Giovanni Magno   +5 more
wiley   +1 more source

Joint DOD and DOA Estimation for High Speed Target Using Bistatic MIMO Radar

International Journal of Antennas and Propagation, 2014
In bistatic multiple-input multiple-output (MIMO) radar, range migration and invalidly synthesized virtual array resulting from the serious mismatch of matched filter make it difficult to estimate direction of departure (DOD) and direction of arrival ...
Jinli Chen, Jiaqiang Li, Peng Li, Yanping Zhu, Weijun Long   +4 more
doaj   +1 more source

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

Reviews 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, T. J. Young, David A. Lilien, Esther Babcock, Nicole Bienert, Donald Blankenship, John Bradford, Giancorrado Brighi, Alex Brisbourne, Jørgen Dall, Reinhard Drews, Olaf Eisen, M. Reza Ershadi, Tamara A. Gerber, Nicholas Holschuh, Daniela Jansen, Thomas M. Jordan, Nanna B. Karlsson, Jilu Li, Carlos Martín, Kenichi Matsuoka, Daniel May, Falk M. Oraschewski, John Paden, Nicholas M. Rathmann, Neil Ross, Dustin M. Schroeder, Martin Siegert, Matthew R. Siegfried, Emma Smith, Ole Zeising   +30 more
wiley   +1 more source

Phase Shift Migration with Modified Coherent Factor Algorithm for MIMO-SAR 3D Imaging in THz Band

Remote Sensing, 2021
In multiple-input-multiple-output synthetic aperture radar (MIMO-SAR) systems, sparse arrays are usually applied, resulting in increased sidelobes of the point spread function.
Guan Yang, Chao Li, Shiyou Wu, Shen Zheng, Xiaojun Liu, Guangyou Fang   +5 more
doaj   +1 more source

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

Electronics 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, Ziyang Jin, Shuyu Zhou, Jinshan Ding   +3 more
wiley   +1 more source

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

Electronics 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, Jianhui Wang, Long Zhang, Weijia Cui, Nan Hu   +4 more
wiley   +1 more source

Joint DOA and DOD Estimation in Bistatic MIMO Radar without Estimating the Number of Targets

Journal of Electrical and Computer Engineering, 2014
Existing subspace-based direction finding methods for multiple-input multiple-output (MIMO) radar assume perfect knowledge about the dimension of the signal or noise subspace, which is hard to be established without prior knowledge of the signal ...
Zaifang Xi, Xiao-feng Wu, Shuyue Wu, Zhijun Tang, Shigang Hu   +4 more
doaj   +1 more source