Abstract
This paper proposes a polyline shaped array based system scheme, associated with mechanical scanning along the array’s perpendicular direction, i.e., the vertical direction, 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 hybrid processing in the space domain and the spatial frequency domain. The nonuniform fast Fourier transform (NUFFT) is utilized to improve the computational efficiency. The proposed algorithm runs even faster than the wavenumber domain algorithms for linear or circular-arc multiple-input multiple-output (MIMO) arrays. This is due to the fact that the latter needs higher dimensional processing that requires more memory usage and time. Numerical simulations and experimental results are provided to demonstrate the efficacy of the proposed technique in comparison with the most commonly used arrays and algorithms.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IEEE Transactions on Instrumentation and Measurement
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
