AN ELECTROMAGNETIC MODEL FOR A STEPPED FREQUENCY CONTINUOUS WAVE GROUND PENETRATING RADAR

摘要

The so-called Super-resolution techniques have often been used to improve the resolution of frequency domain Ground Penetrating Radar systems - with little understanding of algorithms. Most of these techniques are statistically sub-optimal Least Squares Estimators that require knowledge of the model describing the data. This paper develops a data model for a Stepped Frequency Continuous Wave Ground Penetrating Radar using simple scattering models and approximations to the wave-number in the medium. The Matrix Pencil of Function Method is used to estimate the model parameters from the measured data. The algorithm is tested for both simulated and captured data.