中文摘要：

数字存储器可以完成数据采集、数据存储等功能，具有很广泛的应用前景。论述了以Ahera高性能FPGA—EPC3c40F48417为核心处理器的高速信号数字存储系统的硬件设计原理以及基于FPGA的数字存储系统硬件设计实现技术。详细阐述了系统架构以及各功能模块，给出了各模块硬件外围接口的连接图，重点分析了DDR2接口电路设计中的几个关键问题，并结合实际设计中遇到的问题给出了解决方法。该数字存储系统可以用于高速宽频信号的存储等方面。

英文摘要：

Digital memory can complete the data acquisition,data storage, and other functions with a broad prospect of application. High-speed signal digital storage system＇s hardware design principle is introduced along with descriptions on implementation techniques based on Altera＇s high performance FPGA EP3C48417. The architecture of the system and functional modules are described in detail, and the peripheral interface hardware module connection diagram is given. Several main questions of the DDR2 in interface circuit design are analyzed, and some solutions are given for the problems according to the practice design. The digital storage system can be used in the storage of high-speed broadband signals and so on.