Time delay estimation based on cross power spectrum with Doppler compensation

Time delay estimation is an important topic in underwater acoustic field. However, the Doppler phenomenon caused by relative movement between the source and receivers can arise errors in time delay estimation. In order to deal with this problem, a time delay estimation method based on cross power spectrum with Doppler compensation in frequency domain is proposed in this paper. The proposed method separates the Doppler compensation from the time delay estimation rather than estimates them jointly. The results of simulations and experimental data processing show that this method can improve the estimation accuracy of time delay with the influence of Doppler phenomenon.