| 摘要 |
A method for determining the location of an impact on a surface (1) comprisi ng N acoustic sensors (2a, 2b, 2c), transmitting a sensed signal s i (t) to a processing unit (4) comprises the following steps (a) computing P intercorrelation products (b) calculating P inverse Fourier transforms p'ij (u) (c) computing for each area k, Pk(u)=.SIGMA. p'ij (u-.tau. ijk ); d) finding k0, where a characterizing value of Pk0 (u) is greater than a given threshold value.
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