Patent ID: 8392486

Claim:
A method for determining the position of impacts on an object, said object comprising: two acoustic sensor; N predetermined active areas, whereby N is an integer at least equal to 1; said method comprising the steps of: (a) receiving two acoustic signals S 1 (t) and S 2 (t) originating respectively from said acoustic sensors and generated by an impact received on said object; (b) calculating, using at least one processing unit, a sample signature function: SIG S (ω)= S 1 (ω)· S 2 (ω)*, where S 1 (ω) and S 2 (ω) are the respective Fourier transforms of S 1 (t) and S 2 (t), and where * is the complex conjugate operator; (c) comparing SIG S (ω) with N predetermined reference signature functions SIG Rj (ω) each corresponding to a predetermined active area j, for j from 1 to N; (d) determining an active area in which the impact occurred, on the basis of the comparison of step (c).