Waveform inversion of ground-penetrating radar data without needing to extract exciting pulse

The full-waveform inversion based on Maxwell equation is able to utilize all the information,such as wave shape,travel time and phase contained in radar data,which is the reflection of the medium.Full-waveform inversion requires the exciting pulse before the inversion is conducted.It should be extracted from observed radar data,and it is affected by various factors.This paper tries a method without needing to extract the pulse from measurement data.In the method a known geological model is required.A radar trace is collected on the model using the radar system,and a trace is simulated on the model using a given pulse and a couple of given transmitting and receiving antenna.These traces are then used to compute an operator,which is applied to the observed data.The observed data are transformed into the data as if acquired by the given pulse and given antennas.The transformed data are used for waveform inversion.Simulated "measurement" data from a two-dimensional geological model are transformed,and the transformed data are coincident to the simulated data obtained using the given pulse and given antennas.The inversion results from the transformed and simulated data are very close.The inversion result from laboratory experimental data agrees with the actual model.