The paper delivers the first comprehensive survey of MIMO OFDM-based ISAC for low-altitude non-cooperative UAV surveillance, covering system modeling, detection and tracking, identification methods, experimental validations, open challenges, and future directions toward 5G-A and 6G.
Near- field communications: A tutorial review
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True time delay beamforming equals the Radon transform of space-time array data, enabling Radon-based filtering, semblance AoA estimation, triangulation, and hyperbolic integration to isolate near-field sources in ultra-wideband arrays.
A uniform circular array with 0.5 m radius optimizes joint range-angle estimation and communication in near-field ISAC by balancing tighter CRLB against higher received SNR.
An anchor-free near-field localization framework using optimized passive RIS configurations and a two-stage cosine-similarity grid search delivers small root mean square error for practical SNR, RIS size, and antenna counts.
citing papers explorer
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MIMO OFDM-Enabled ISAC for Low-Altitude Non-Cooperative UAV Surveillance: A Survey
The paper delivers the first comprehensive survey of MIMO OFDM-based ISAC for low-altitude non-cooperative UAV surveillance, covering system modeling, detection and tracking, identification methods, experimental validations, open challenges, and future directions toward 5G-A and 6G.
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The Radon Transform, True Time Delay Beamforming, and Ultra-Wideband Antenna Arrays (Invited Paper)
True time delay beamforming equals the Radon transform of space-time array data, enabling Radon-based filtering, semblance AoA estimation, triangulation, and hyperbolic integration to isolate near-field sources in ultra-wideband arrays.
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Joint Range-Angle Estimation in Near-Field ISAC System using Uniform Circular Array
A uniform circular array with 0.5 m radius optimizes joint range-angle estimation and communication in near-field ISAC by balancing tighter CRLB against higher received SNR.
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Near-field Anchor-free Localization using Reconfigurable Intelligent Surfaces
An anchor-free near-field localization framework using optimized passive RIS configurations and a two-stage cosine-similarity grid search delivers small root mean square error for practical SNR, RIS size, and antenna counts.