Design Of Fast Digital Signal Processing System Based On FPGA+DSP

Digital signal processing is widely used in various scientific and technical fields,and it plays an increasingly important role in today's digital signal processing.With the rapid development of information technology,large-scale integrated circuits and computers,digital signal processing technology has achieved rapid Development.Especially the development of dedicated digital signal processor DSP and large-scale programmable device FPGA has promoted the rapid development of digital signal processing system design.This article introduces the development of digital signal processing systems by using digital processing in the navigation field as an application background.In the research design scheme,the design of each module circuit was carried out,and the hardware platform of the digital signal processing system based on dual-channel DSP+FPGA was developed.In platform applications,DSP is mainly responsible for data processing and external SRIO communication.FPGA is mainly responsible for modulation and demodulation,codec,signal real-time processing and channel control functions,and the combination of the two,to achieve complementary advantages,give full play to high DSP performance and FPGA At the same time,the hardware platform provides SRIO interface and PCI-E interface to realize fast data exchange function of the system;FPGA data configuration adopts CPLD and FLASH analog parallel configuration mode,and can realize online loading function through DSP.Research shows that the hardware platform of digital signal processing system based on dual-channel DSP+FPGA can meet the requirements of design size,power consumption,etc.DSP and FPGA can be loaded normally according to requirements,and the underlying driver can work normally,which has good military significance and application value.