基于FPGA的数据记录器数据源的研究与实现

Research and realization of data logger source based on FPGA

随着合成孔径雷达的飞速发展,对于数据记录器速度的要求越来越高。在这种情况下,如何检验其性能,特别是存储的速率与误码率显得十分关键。基于此,提出了1种基于FPGA的数据记录器数据源系统的设计方案。其中,在硬件方面,对低电压差分信号(LVDS)传输方式、Spartan-3系列FPGA的功能模块,以及系统编程调试模块进行了介绍;在软件方面,通过利用Verilog语言中的有限状态机(FSM)设计方法对核心程序等进行了编写与说明。

With the fast development of Synthetic Aperture Radar, there is a much higher demand of the speed of data logger. In this condition, it becomes quite important that how to check its performance and especially how to check the speed of memory and ratio of mistake. According to this, it is presented in this paper a data source system for data logger based on FPC-A. In aspect of hardware, it is introduced about the Low-Voltage-Difference-Signal （LVDS） transport mode, FPGA functional module and system program testing modules. In aspect of software, using Finite-State-Machine （FSM） of Verilog, the substantial program is described.