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The integrated ground penetrating radar (GPR) and global positioning system (GPS) survey has been extensively used to investigate the subsurface materials or buried-objects with the geographical information. However, when the GPR was pulled quickly, there was inadequate that the GPS signal receiver cannot real-time update its geographical coordinates by the serial com-port or USB port on the laptop...
We have studied and explored the influence of different launch angles on the circular Pearcey beams (CPBs) without vortex or with vortex for the first time. Although launch angles can manipulate the focal length and the contrast of peak intensity of the CPBs, the shape and propagation trajectory of the CPBs maintain invariant. When the vortex is considered, the focal pattern and the contrast of peak...