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Review Open access Sep 2026

Fast sparse image reconstruction models in through-the-wall radars: a review

Through-the-Wall Radar Imaging (TWRI) is a modern technology that uses electromagnetic waves to detect objects behind walls, with key applications in surveillance, rescue operations, and reconnaissance. Achieving high resolution in both down-range and cross-range requires ultra-wideband signals and long apertures, resu...

Aude Kileo, Hashim U. Iddi, Abdi T. Abdalla · 0 citations
2026

Bridge Parameter Inversion Using Generalized Compact Polarimetric SAR: A Feasibility Study With Intensity-Based Stripe Localization

Bridge parameter inversion from synthetic aperture radar (SAR) data has traditionally relied on fully polarimetric (FP) observations, where $\mathrm {Re}(\langle S_{HH} S_{VV}^{*}\rangle)$ is used to localize double-bounce scattering stripes. This letter demonstrates, for the first time, the feasibility of bridge multi...

Lin-Lin Zhang, Xin-Yue Wang · 0 citations
2026

High-Resolution Noncoherent SAR Imaging With LRMC-Guided ROI-ADMM and Distributed Spiral Receivers

This letter proposes a sparse high-resolution noncoherent synthetic aperture radar (NC-SAR) imaging framework based on a two-stage low-rank matrix completion (LRMC)-guided region-of-interest (ROI) alternating direction method of multipliers (ADMMs) reconstruction strategy. In Stage 1, LRMC is applied to sparse NC-SAR a...

Cao Hong Phuc Nguyen, Xiao-Jing Huang, J. A. Zhang · 0 citations
2026

A Multifrequency SAR Tomography Method via Mixed-Norm and Deep Unfolding Network

Tomographic synthetic aperture radar (TomoSAR) enables 3-D imaging of observed scenes while typically requiring numerous flight passes to achieve high-quality imaging and avoid elevation ambiguities. Recently developed multifrequency TomoSAR (MF-TomoSAR) offers a promising approach to reduce the required flight passes...

Pei-Yao Liu, Ze-Gang Ding, Zhen Wang et al. · 0 citations
Conference Oct 2026

Complex-valued SAR image super-resolution via frequency-domain cold diffusion

Synthetic Aperture Radar (SAR) can acquire high-quality data under all-time and all-weather conditions, and thus possesses important application value in multiple fields such as national defense, remote sensing and disaster monitoring. Nevertheless, the imaging resolution of SAR is constrained by the bandwidth of trans...

Xinyve Heng · 0 citations
Preprint Sep 2026

Benchmarking Regularization Methods For 3D Radio Tomographic Imaging

Evaluating three distinct regularization approaches within the x3DPRA framework shows that Total Variation regularization provides the best reconstruction quality but not the fastest runtime, providing guidance for developing high-resolution 3D RTI systems for future ISAC applications.

Wanqi Ma, Yi-Jun Chen, Alikhan Umirbayev et al. · 0 citations

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