Design and Implementation of Digital Signal Processing Module Based on PCI Bus and FPGA

Signal acquisition and processing technology based on FPGA is researched. FPGA is the core of the signal acquisition and processing systems, it controlled each module to complete signal acquisition and processing tasks. The article mainly researched and designed of FPGA-based control and processing systems, including FPGA-based signal acquisition module, FPGA-based signal processing module and FPGA-based storage control module. Acquisition and control module is mainly for controlling channel selection switch and A / D converter to work that generate multi-channel selection logic control signals and A / D conversion timing control in order to complete the multi-channel analog input signal acquisition control; Signal Processing Module mainly for through the A / D converted digital signal to FFT processing; storage control module's role is to control the memory work, that is, memory logic control signals generated, in order to achieve control of the processing results of store.