| 摘要 |
For the processing of a knock sensor signal during the detection of knocking in a combustion engine, in order to allow for inexpensively designed, efficient, and accurate bandpass filtering, a signal processing device (10) has an analog filter (20), a sigma-delta modulator (30) designed for analog-digital conversion, a CIC filter (40) designed to decimate the sampling rate, and a digital filter (50). |
