Results 61 to 70 of about 824,340 (177)

Improved MUSIC Method against Range Dimension Deceptive Jamming Based on FDA-MIMO

Applied Sciences, 2022
Frequency diverse array-multiple-input multiple-output (FDA-MIMO) radar makes it transmit beam range–angle two-dimensional freedom by attaching a small frequency offset increment between the array elements.
Yang Chen, Bo Tian, Chunyang Wang, Jian Gong, Yingjian Zhao   +4 more
doaj   +1 more source

Deceptive Jamming Suppression by Frequency‐Domain Adaptive Processing With Multi‐Carrier Radar

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This paper proposes a frequency‐domain adaptive processing method based on the multi‐carrier radar to suppress deceptive jamming. Different from frequency diverse array‐multiple‐input multiple‐output (FDA‐MIMO) radars relying on spatial antenna arrays, the multi‐carrier radar obtains range‐dimension degrees of freedom through a single co‐located ...
Jinhu Li, Fangzheng Zhang, Shilong Pan, Gong Zhang, Zhenyu Xu   +4 more
wiley   +1 more source

Digital Beamforming and MIMO SAR: Review and New Concepts [PDF]

, 2012
Spaceborne Synthetic Aperture Radar (SAR) is a unique tool for large scale Earth observation, but the current generation of SAR sensors suffers from some fundamental limitations with regard to their imaging and mapping capabilities.
Villano, Michelangelo, Patyuchenko, Anton, Laskowski, Piotr, Huber, Sigurd, Bordoni, Federica, Moreira, Alberto, Younis, Marwan, Krieger, Gerhard, Kim, Junghyo, Rommel, Tobias, Lopez-Dekker, Paco   +10 more
core  

Joint Localisation of Line‐of‐Sight and Non‐Line‐of‐Sight Targets via Deep Learning‐Assisted Millimetre‐Wave Radar

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This paper proposes a joint LOS/NLOS localisation framework for urban T‐shaped scenarios using multidimensional parameter estimation, region‐adaptive reconstruction and deep‐unfolded iterative optimisation. By modelling the scene geometrically and applying region‐weighted sparse recovery in the range‐angle‐Doppler domain, the method enhances weak NLOS ...
Shuohan Su, Pengcheng Gong, Qixing Li, Jian Liu, Yuanjun Zhao, Xiangjin Zeng, Yuntao Wu   +6 more
wiley   +1 more source

Phase‐Only Optimization Based on a Riemannian Manifold for the Low Probability of Intercept Method of Frequency Diverse Array

International Journal of Antennas and Propagation, Volume 2026, Issue 1, 2026.
In this paper, a phase‐only beampattern optimization algorithm is proposed for a frequency diverse array (FDA) radar to achieve a low probability of intercept (LPI). To avoid the high hardware complexity of joint amplitude–phase optimization and performance loss caused by simple phase truncation, we formulate a fractional quadratic optimization ...
Kuandong Gao, Mingxiang Guan, Tang Hui, Wu Zhou, Wenqin-Wang, Liton Chandra Paul   +5 more
wiley   +1 more source

Robust Beamforming for Frequency Diverse Array Multiple-Input Multiple-Output Radar: Mitigating Steering Vector Mismatches and Suppressing Main Lobe Interference

Remote Sensing
Frequency Diverse Array Multiple-Input Multiple-Output (FDA-MIMO) radar introduces range-dependent beamforming capabilities, enhancing its ability to differentiate true targets from main lobe jammers.
Yumei Tan, Yong Li, Wei Cheng, Limeng Dong, Langhuan Geng, Muhammad Moin Akhtar   +5 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

Transceiver Design for an FDA-MIMO Radar and MIMO Communication Spectral Coexistence System

Leida xuebao
When radar and communication systems share the same frequency spectrum on the same platform, mutual interference may occur. In addition, mainlobe deceptive interferences pose a serious threat to radar target detection.
Qihang XU, Lan LAN, Guisheng LIAO, Kewei WANG, Tongxing ZHENG   +4 more
doaj   +1 more source

Revised Dingo Optimization Algorithm for Frequency Offset Design in FDA‐MIMO Radar

Electronics Letters, Volume 61, Issue 1, January/December 2025.
Our study explores the issues of grating lobes and parameters coupling between angle and range dimensions caused by the traditional frequency diverse array (FDA) with linear frequency offsets. We have proposed a revised dingo optimization algorithm with a Kaiser window function (RDOAK) algorithm based on FDA multiple‐input multiple‐output (FDA‐MIMO ...
Yimeng Zhang, Wenxing Li, Bin Yang, Kai Dong   +3 more
wiley   +1 more source

Angle and Range Unambiguous Estimation with Nested Frequency Diverse Array MIMO Radars

Remote Sensing
This paper proposes an unambiguous method for joint angle and range estimation in colocated multiple-input multiple-output (MIMO) radar using the nested frequency diverse array (NFDA). Unlike a conventional phased array (PA), the transmission beampattern
Zhengxi Wang, Ximin Li, Shengqi Zhu, Fa Wei, Congfeng Liu   +4 more
doaj   +1 more source