High Order Spectral Estimation Methods in Ground Penetrating Radar Applications

In ground penetrating radars (GPR) using stepped frequency continuous wave (SFCW), for an estimation of objects depth the inverse discrete Fourier-transformation (IDFT) of signals (image and real parts) on an output of the receiver is applied. As a result frequencies of spectral components corresponds to time delays (or to depths) of signals reflected from buried objects. In applications, in particular, in engineering geology surveys at the decision of problems with use of SFCW GPR, the spectrum width of a probing signal is choosing so that dispersive properties of medium not strongly deformed signals.