CIC filter implementation method, signal processing device, equipment and storage medium

• Main Author: HUANG ZHIKE
• Format: Patent
• Language: Chinese; English
• Published: 13.10.2023
• Subjects: BASIC ELECTRONIC CIRCUITRY; ELECTRICITY; IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS

The embodiment of the invention provides a CIC filter implementation method, a signal processing device, equipment and a storage medium, and the method comprises the steps: a first CIC filter is a single-stage CIC filter which is subjected to R-time down-sampling or up-sampling and has differential delay of 1, when R is the power Q of an integer p, the first CIC filter is implemented through Q same cascaded second CIC filters, and when R is the power Q of the integer p, the first CIC filter is implemented through Q second CIC filters; the second CIC filter is a p-time down-sampling or up-sampling single-stage CIC filter with differential delay of 1, and the sampling directions of the first CIC filter and the second CIC filter are the same. According to the technical scheme, the CIC filter with the high sampling rate is achieved through the CIC filter with the low sampling rate, the problems that in the CIC filter, the word length of the integrator and the word length of the differentiator are too large, and t