High-resolution interference acoustic location

A method of forward-scattering location on the basis of resolving the arrival times of direct and scattered signals is proposed. The method is specific in that it allows one to use a long sinusoidal probing signal. The required time resolution of the signals produced by moving targets is achieved by processing the spectrum of the received echo signals so as to broaden its effective bandwidth. The method is tested in both numerical and full-scale acoustic experiments. For the first time, the forward-scattering location is implemented with the use of long probing pulses in a narrow frequency band.