Abstract
In this paper, an exact reconstruction formula is presented for near-field three-dimensional (3D) planar millimeter-wave (MMW) holographic imaging. The proposed formula is derived based on scalar diffraction theory, and the round-trip imaging process is equivalent to a unidirectional optical field propagation. Because of compensating the propagation loss of the source for the near-field imaging configuration, the inconsistency in range domain of the reconstructed 3D images is avoided. The proposed reconstruction formula also gives a phase correction for the reconstructed complex-valued reflectivity of the target and the range coordinate can be exactly determined. Simulations and laboratory imaging experiments are performed to demonstrate the effectiveness of the proposed reconstruction formula.
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This work was supported by the National Key Scientific Instrument and Equipment Development Projects of China (No. 2012YQ14003701). The authors also thank Dr. Chang Ming for his help to our experiments.
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Qiao, L., Wang, Y., Zhao, Z. et al. Exact Reconstruction for Near-Field Three-Dimensional Planar Millimeter-Wave Holographic Imaging. J Infrared Milli Terahz Waves 36, 1221–1236 (2015). https://doi.org/10.1007/s10762-015-0207-z
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DOI: https://doi.org/10.1007/s10762-015-0207-z