Active three-dimensional microwave or millimeter-wave imaging is typically performed using a linear array that is mechanically scanned over a uniform planar or cylindrical aperture. However, an image can also be formed with a linear array that is scanned over a non-uniform irregular aperture. This requires that the precise position of the array be known for each radar sample. This paper explores high-resolution 3D microwave imaging of stationary targets using an optically tracked manually scanned linear array. The image reconstruction techniques necessary to account for a non-uniform irregular aperture are also developed.
Revised: May 6, 2020 |
Published: April 23, 2020
Citation
Clark R.T., D.M. Sheen, J.R. Tedeschi, A.M. Jones, and T.E. Hall. 2020.High-resolution 3D microwave imaging using an optically tracked linear array. In Passive and Active Millimeter-Wave Imaging XXIII; SPIE Defense and Commercial Sensing. Proceedings of the SPIE, edited by D.A. Wikner and D.A. Robertson, 11411, Paper No. 114110E. Bellingham, Washington:SPIE.PNNL-SA-152504.doi:10.1117/12.2560396