2021/09/07 by Shuoguang Wang, Shiyong Li, Wang, Shuoguang +5
Engineering · #FOS: Electrical engineering #Microwave Imaging and Scattering Analysis #Microwave and Dielectric Measurement Techniques #Signal Processing (eess.SP) #Terahertz technology and applications #eess.SP #electronic engineering #information engineering
paper · pdf · doi:10.48550/arxiv.2109.02842
arxiv created 2021/09/07 · openalex publication_date 2021/09/07 · arxiv updated 2021/09/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
This paper proposes a polyline shaped array based system scheme, associated with mechanical scanning along the perpendicular direction of the array, for near-field millimeter-wave (MMW) imaging. Each section of the polyline is a chord of a circle with equal length. The polyline array, which can be realized as a monostatic array or a multistatic one, is capable of providing more observation angles than the linear or planar arrays. Further, we present the related three-dimensional (3-D) imaging algorithms based on a hybrid processing in the time domain and the spatial frequency domain. The nonuniform fast Fourier transform (NUFFT) is utilized to improve the computational efficiency. Simulations and experimental results are provided to demonstrate the efficacy of the proposed method in comparison with the back-projection (BP) algorithm.