Application of time-frequency techniques for the detection of anti-personnel landmines

In this paper we propose two methods to detect buried underground objects. Both methods are based on time-frequency analysis. The first approach uses the instantaneous frequency of the return ground penetrating radar (GPR) signals and the second approach uses a time-frequency distribution (such as the Wigner-Ville distribution or the spectrogram) of the return signals. Real data were used in the examples to validate the proposed algorithms.