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Wu-Qiong Zhao

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Preprint Sep 2026

Dirichlet Splatting: Differentiable Rendering for Wave-Based Inverse Problems

Wave-based coherent imaging, including terahertz tomography, synthetic-aperture acoustics, and millimeter-wave radar, forms images by Fourier-processing finite-length signals, with an exact point spread function that is not Gaussian but a Dirichlet kernel: complex-valued, oscillatory, and periodic. However, transplanti...

Xing-Yu Chen, Wu-Qiong Zhao, Xin-Yu Zhang et al. · 0 citations
Book Open access Aug 2026

FlowForm: Scalable Passive Metasurface Network for mmWave Coverage Expansion

FlowForm is introduced, a system that expands mmWave coverage using networks of passive metasurfaces that require no power, control, or runtime coordination, and develops a theoretical framework establishing the optimality of this topology and a hierarchical optimization algorithm that jointly determines metasurface pl...

Wu-Qiong Zhao, Bai-Cheng Chen, Kai Zheng et al. · 0 citations

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