Results 41 to 50 of about 37,267,212 (171)

Digital beamforming to mitigate automotive radar interference

open access: yes, 2016
Interference between automotive radars decreases the sensors’ detection capabilities. It is possible to use digital beamforming (DBF) in multi-antenna systems to reduce the power received from certain directions of arrival (DoA).
Eid, Karim   +3 more
core   +1 more source

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

open access: yesIET 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   +2 more
wiley   +1 more source

Investigation on Multimode SAR Imaging Based on Digital Array Radar

open access: yesLeida xuebao, 2014
Digital Array Radar (DAR) has the ability of simultaneous multimode imaging and has many potential applications. This paper firstly introduces the basic hardware structure and the operation principle of DAR.
Li Xue-shi   +4 more
doaj   +1 more source

Space‐Time Adaptive Processing Clutter Suppression Algorithm Based on Spatiotemporal Stationarity of Ionospheric Clutter in HFSWR

open access: yesInternational Journal of Antennas and Propagation, Volume 2026, Issue 1, 2026.
In high‐frequency surface wave radar (HFSWR) systems, ionospheric clutter is a common phenomenon that often causes targets to be submerged. Space‐time adaptive processing (STAP) is a classical adaptive filtering algorithm. To reduce computational complexity and the required number of clutter samples, practical radar systems usually employ reduced ...
Ruilong Ren   +4 more
wiley   +1 more source

Advanced Digital Beamforming Architectures and Operation Modes for and Enhanced SIGNAL Mission Concept [PDF]

open access: yes, 2012
Recently, a team of scientist lead by the German Aerospace Center (DLR) have proposed a Ka-band single-pass interferometric mission concept named SIGNAL (SAR for Ice, Glacier aNd globAL Dynamics). SIGNAL main goal is to estimate accurately and repeatedly
López-Dekker, Paco   +4 more
core  

A low-cost narrow-beamwidth DBF radar concept

open access: yes, 2012
An innovative low-cost and higher than conventional angular resolution digital beamforming (DBF) array radar system is proposed and introduced in this paper.
Tang, Yue.   +3 more
core   +1 more source

A Low Side Lobe Anti‐UAV Radar Beamforming Method Based on Hybrid Basic Beams Superposition

open access: yesElectronics Letters, Volume 61, Issue 1, January/December 2025.
This paper proposed a beamforming method based on a hybrid basic beams superposition for anti unmanned aerial vehicle radar in order to decrease side lobe level. A basic beams generation method for improving the attenuation side lobe of the original basic beams is also proposed.
Fei Tong   +4 more
wiley   +1 more source

The Application of JDL to Suppress Sea Clutter for Shipborne HFSWR

open access: yesInternational Journal of Antennas and Propagation, 2015
This paper deals with the problem of sea clutter suppression for shipborne high frequency surface wave radar (HFSWR) based on the joint domain localized (JDL) adaptive processing algorithm. The performance of the novel method is compared with 2D FFT plus
Zhenyuan Ji   +3 more
doaj   +1 more source

Rapid Target Search Method for Distributed Aperture Radar via Role Reversal

open access: yesIET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.
We propose a novel near‐field processing method based on ‘Virtual Array‐Observer (VAO)’ role reciprocity. Our approach constructs a radar virtual array at the target location, which inversely observes the distributed radar deployment. ABSTRACT Distributed aperture radar (DAR) systems encounter significant computational challenges in near‐field target ...
Jing Chen, Wen Fan, Qun Wan
wiley   +1 more source

Performance Evaluation of Distributed-Antenna Communications Systems Using Beam-Hopping

open access: yes, 2005
Digital beamforming (DBF) techniques are capable of improving the performance of communications systems significantly. However, if the transmitted signals are conflicted with strong interference, especially, in the direction of the transmitted beams ...
Yang, L.-L., Zhu, J., Hu, H.
core   +1 more source

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