A Reconfigurable Signal Digital Platform Design

Signal digitizing platform is one kind of instrument which is used for the real time sampling, the storage and transmission, the real time data processing of instantaneous, complex electromagnetic signal. To meet different applications of many consumers, signal digitizing platform must not only have high sampling ratio specification, but also could be reconfigurable. Through the reconfiguration design, it could be used in electronic equipment such as radar, electronic countermeasure, and digital communication which is based on high level technical sampling technology.This dissertation deeply researched on the design of reconfiguration on signal digitizing platform. Based on the analysis of international implement approach and research status of reconfigurable technology, this dissertation design a reconfigurable system based on EPCS programming on line. And through this kind of reconfiguration of FPGA, we realized each module of signal digitizing platform to be reconfigurable. Using the reconfigurable characteristic of FPGA,we could realize the different working pattern through disposes the different procedure data to two chips of FPGA(FPGA of control logic, FPGA of sampling and acquisition memory)of signal digitizing platform, such as different working pattern of channel, different memory pattern of DDRâ…¡and so on. This process does not need the power off in the system to realize overall system reconfiguration.The primary content of the dissertation includes, the design of FPGA reconfiguration based on EPCS device programming, the realization of reconfiguration of each module on the signal digitizing platform, like the channel module, the clock module, the sampling and acquisition memory module and so on. At last, we confirmed the feasibility of the reconfiguration.The reconfiguration technique of the signal digitizing platform adapts the different application demand of users. The experiment indicated that, this kind of design scheme of reconfiguration configures the signal digitizing platform correctly, and it is feasible in the applied systems.