| 摘要 |
PROBLEM TO BE SOLVED: To provide a signal processor which allows for compensation of the output response delay of a filter circuit, with a smaller amount of calculation. ! SOLUTION: When an analog signal outputted from a sensor element 2 is A/D converted by an A/D converter 4, a signal processor 11 performs calculation for correcting the characteristics of the analog signal with the A/D converted data, by means of a digital calculator 5. The data outputted from the digital calculator 5 is multiplied by correction coefficients A according to the delay characteristics, i.e., the CR time constant, of a CR filter 9 arranged in an input section of an ECU8, by means of a signal characteristics correction circuit 6, before being outputted to a D/A converter 7, and a D/A converted analog signal is inputted to the ECU8. Consequently, the signal response characteristics of the CR filter 9 can be improved and compensated with smaller calculation than that of a digital filter. ! COPYRIGHT: (C)2015,JPO&INPIT |
