F. AhmadG.J. FrazerS.A. KassamM.G. AminIEEEInternational Conference on Acoustics, Speech, and Signal ProcessingS. Kassam, F. Ahmad, G. Frazer, and M. Amin, "A new approach for near- field wideband synthetic aperture beamforming," in Proc. IEEE ICASSP, Hong Kong, Apr. 2003, pp. 89-92.
91Low-Complexity Precoding for Extremely Large-Scale MIMO Over Non-Stationary ChannelsXu, Bokai, etal. 92Multi-Beam Design for Extremely Large-Scale RIS Aided Near-Field Wireless CommunicationsLinglong Dai, etal. 93Active RISs: Signal modeling, asymptotic analysis, and beamforming designLinglong Dai,...
Beamforming is a signal processing technique utilized with arrays of microphones or sensors to localize, isolate, and analyze sound sources. It operates by manipulating the signals received from a spatially distributed array to focus on specific directions, similar to a directional antenna for wind tu...
Antennas that can operate across multiple communication standards have remained a challenge. To address these limitations, we propose a Field-Programmable Radio Frequency Surface (FPRFS), which is based on manipulating current flow on its surface to achi
or Full Width at Half Maximum of main lobe are quite effective for evaluating far field beam patterns or near field beam pattern at a single depth, but they fail to capture the global beam pattern quality along a depth range. Our numerical experiments demonstrate that the optimized Beam Pattern...
It showed that the free-space path loss in the near field is proportional to (dTx−RIS+dRIS−Rx)2 instead of the product dTx−RIS2dRIS−Rx2 of the far-field case. Based on the general path loss formula, the path loss formulas for near-field beamforming and broadcasting were ...
To further illustrate the anomalous transmission effects, Fig.4fpresents the simulated near-field spatial distributions of theE-field intensities on theyoz-plane at 3.5 GHz when the RIS is controlled by the five coding sequences. It is clearly observed that the plane waves propagate along the ...
We introduce hard, s-level control in the execution for the real-time scheduling of radio resources among the User latency of codelets through a novel eBPF bytecode patching Equipments (UEs). The layers are distributed among three mechanism that preempts a codelet that exceeds a certain run- ...
so that the CNN allows the quick near-field positioning (NFP), and there is no need for huge computing overhead. Therefore, the proposed AWPN is a multifunctional and highly integrated system that fully utilizes the advantages of the metasurface in full-duplex beam steering and sensing, advanci...
3)Finally, CMOS-integrated pMUT arrays require novel multichannel beamforming algorithms to enhance the 3D volumetric imaging results in a new format. The proposed methodologies can thereafter include the development of advanced signal processing techniques, specifically for pMUT arrays integrated with CMOS...