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
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.· Conference on Applications,...· 0 citations
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