Abstract
For precession targets, the complex motion and multiple unknown parameters make the three-dimensional (3D) imaging a difficult task. By taking full advantage of the micromotion and signal characteristics of the precession targets, a multivariant complex-valued back-projection method is proposed. This method can achieve the high-resolution 3D imaging and micromotion parameters estimation simultaneously. After the estimation of the precession angle, the 3D coordinates of the scatterers can be obtained and thus the image scaling can be avoided. Experimental results based on simulated data and electromagnetic computation show that the proposed method has an accurate parameter estimation and effective 3D image reconstruction performance.
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This work was supported by the National Natural Science Foundation of China (61571459, 61701526, 61372166).
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He, X., Tong, N., Hu, X. et al. High-resolution three-dimensional reconstruction for precession targets based on multivariant back-projection. Multidim Syst Sign Process 29, 1711–1726 (2018). https://doi.org/10.1007/s11045-017-0524-6
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DOI: https://doi.org/10.1007/s11045-017-0524-6