Passenger protection system with a signal processing device and the corresponding signal processing method of solid-borne sound signal especially in the automotive

摘要

Passenger protection system and corresponding signal processing method of solid-borne sound signal, especially in the automobile will be introduced. A high pass filter of first order filter case is between the operating frequencies above the operating frequency of the underlying -3dB cutoff frequency of this filter. Signal delay in the filter not only significantly smaller so that the frequency is not the same within the operating range, components below may be attenuated by an appropriate strength than the cut-off frequency, as much as can be seen at the early more starting cases whereby Not, unactuated case may be reliably confirmed.