Doppler Elimination Algorithm for Moving Sound Source Position

It is of great significance to obtain the position information of the noise source of a moving target, but Doppler effect often exists in the radiated noise. This paper proposes nonlinear interpolation based Doppler elimination algorithm for array re-ceived signal, including single channel and single focus type, single channel and multi-focus type, and multi-channel and multi-focus type. The algorithm can compensate Doppler frequency shift and amplitude attenuation of radiated noise, and so improve the identification and position accuracy of noise source of moving target. The results of outside field test before and after using the Doppler elimination algorithm show that this algorithm can effectively eliminate the Doppler effect, and improve the position accuracy of noise source.