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Application of the finite-difference reverse time migration (FD-RTM) to ground penetrating radar (GPR) data may generate high-resolution imaging for complex geologic bodies. However, in conditions of complex topography, due to topographic roughness it is very difficult to get clear images of near-surface internal structure with the traditional approach of “static correction + flat datum migration”...
Polarimetric radar imaging is an emerging technology in ground penetrating radar (GPR). This paper presents a study of polarimetric radar imaging with single-input single-output (SISO) and multiple-input multiple-output (MIMO) configuration for GPR applications with a focus on infrastructure survey applications. To improve target characterization, we also perform the H-alpha analysis, which is one...
A novel wide stopband bandpass filter implemented with lumped capacitor-based coupling structure is presented in this paper. Lumped-capacitors, instead of traditional parallel-coupled lines, are employed to provide the desired coupling strength between the resonance elements. And certain coupling regions are replaced by coupling points. For verification, an experimental bandpass filter operating at...
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