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Time-domain imaging of radar targets using sinogram restoration for limited-view reconstruction

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4 Author(s)
Yingcheng Dai ; Dept. of Electr. Eng., Michigan State Univ., East Lansing, MI, USA ; Rothwell, E.J. ; Chen, K.M. ; Nyquist, D.P.

The time-domain image reconstruction problem can be formulated as a sinogram recovery problem. The sinogram recovery problem is to find a complete sinogram based on the measured incomplete sinogram. In this paper, we solve the sinogram recovery problem by using linear prediction techniques. Since the scattered field of a target can be written as a superposition of distinct specular reflections arising from scattering centers on the target, the trace of the scattering centers can be predicted using linear prediction with the change of the observation angle. Thus, the missing data may be predicted before reconstructing the image. Some useful results obtained using the proposed method are presented

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Antennas and Propagation, IEEE Transactions on  (Volume:47 ,  Issue: 8 )