Time Difference of Arrival Estimation Based on Cross Teager-Kaiser Energy Operator

By referring to the advantage of Teager-Kaiser Operator(TKO),this paper proposes an estimation method for Time Difference of Arrival(TDOA) of two signals based on Cross Teager-Kaiser Energy Operator(CTKEO).TDOA estimation is obtained directly and statistical independently by checking peak position of the similarity between two signals.Simulation experiments with UWB signal show that the method is simple,more achievable and globally outperforms cross-correlation algorithm.