| 摘要 |
PURPOSE:To simply generate in terms of circuit a pseudo acceleration signal corresponding to an acceleration signal in vehicular collision by extracting the frequency component of an actually generated acceleration signal from a noise generated by means of a noise generating means by means of a plurality of filter means and by weighting the acceleration signal to produce the pseudo acceleration signal. CONSTITUTION:An operation starting signal A from a switching signal generating circuit 61 is supplied to a white noise generating circuit 50. An operation starting signal C is supplied to a switch circuit 59. Thus, the input and the output of the switch circuit 59 are closed to output a white noise from the white noise generating circuit 50 through a summing circuit 60. When the input and the output of the switch circuit 59 have been transferred to open state from closed state, operation starting signals B are supplied to superimposing circuits 54, 55, 56, respectively to output an output signal from a bandpass filter 51 through the summing circuit 60. Then, an output signal from the superimposing circuit 55 through a delay circuit 57 is outputted through the summing circuit 60. In addition, an output signal from the superimposing circuit 56 is then outputted. |
