Near-field three-dimensional coherent imaging: Theory and simulations

Silverstein, Seth D.; Zheng, Yibin
April 2004
Applied Physics Letters;4/5/2004, Vol. 84 Issue 14, p2703
Academic Journal
This work presents a rigorous mathematical derivation of an effective approximate solution to the three-dimensional inverse scattering/imaging problem that is applicable for all imaging zones ranging from the near to the far field. Simulation results for the point spread function illustrate the range and cross-range resolution as a function of the optical f number. The model system operates in a synthetic aperture type mode, where the coherent signals are transmitted, and the scattered signals are subsequently received at individual transmitters and receivers. Potential applications of this technology include: Medical ultrasound, foliage penetrating synthetic aperture radar, ground penetrating radar for land mine detection, and electromagnetic millimeter-wave scanning for concealed weapon detection. © 2004 American Institute of Physics.


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