Research on Electronic Materials with Design on the Narrow-band FIR Filter Based on Multiple Sampling Frequency

摘要

This paper introduces the basic structure of narrow-band FIR filter and conducts detailed analysis on the various components of narrow-band FIR filter. Based on the CIC and HBF, this paper further designs narrow-band FIR filter with the sampling rate of 100 KHz. The materials of filter adopt the piezoelectric ceramic vibrator with high mechanical quality factorand high stability .Moreover, the simulation results indicate that this filter can greatly reduce the calculation amount and storage capacity so as to satisfy the real-time processing requirements of the signals.