Abstract
A microwave/mmw imaging method for moving objects of non-rigid body using 2D sparse MIMO (multiple-input multiple-output) array is proposed in this paper. To achieve high-resolution 3D image, two orthogonal linear arrays are introduced to form a 2D sparse MIMO array and wide-band signals are transmitted in this method. Subsequently, a space-time trajectory model is introduced to describe the motion of the non-rigid body target. The joint use of segmental and joint-estimation leads to the effective movement compensation of each component. Finally, all the images of components are merged into an image of the whole target and the 3D high-resolution image of the target is reconstructed.
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