Lightweight 2D Imaging for Integrated Imaging and Communication Applications

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While integrated sensing and communication has attracted great attention, integrated imaging and communication is still largely open. Microwave, millimeter-wave, and tera-Hz imaging needs to sample a huge number of antenna positions and is thus too complex and costly to mobile communication devices. To address this challenge, we propose a Lightweight Imaging Algorithm (LIA) to reduce the complexity of both imaging hardware and computation. Based on the synthetic aperture radar principle, LIA uses the iterative matrix inversion lemma to estimate image pixels efficiently. Simulations with both simulated and real-world data verified that LIA had superior performance. The algorithm is promising to compact handheld and mobile devices in integrated imaging and communication applications.