ESTABLISHMENT OF WIDE SENSE DIGITAL FILTER FOR WIND NOISE CANCELLATION IN A LOW FREQUENCY SOUND MEASUREMENT

It is well known that a wind noise strongly influences observed data, especially when measuring a low frequency acoustic signal. The main reason for this seems to be that major spectrum component of the wind noise coexists within the same frequency bands as the low frequency sound signals. Therefore, it is principally difficult to eliminate the undesirable effect of wind noise when measuring low frequency acoustic signals, only by employing the traditional electrical circuit type analog filter.