Abstract
This article demonstrates a new method of determining depth in wideband coherent Doppler tomography (CDT) using only a monostatic arrangement. The method was developed to eliminate the smearing effects present when imaging a target wrapped around a conformal surface. All that is required is the addition of isotropic targets placed around the subject under test (SUT). Using only a single data set, two images containing differing reference planes are generated. The new algorithm locates the position of these points and correlates the dispersion of the peak spectral power for each one. It has appropriately been named the dual-layer peak matching (DLPM) technique. The DLPM technique will be performed in both the measured and simulated environments to consolidate the robustness of the results generated. For both examples, positional error falls within the range resolution for the measurement setup. All steps are demonstrated from the data acquisition to the final result, allowing the user to predict the depth (from here on referred to as the “ $\boldsymbol {\Delta z}$ ” location) of multiple scatterers in space. Finally, a tomographic image will be generated that encompasses the DLPM technique to eliminate smearing in the measured example.
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