弹光调制高速大容量存储系统

High-speed large-capacity storage system for photoelastic modulation

为有效解决弹光调制(photoelastic modulation)傅里叶变换光谱仪数据采集速度高、存储容量大的问题,提出了一种基于FPGA和SDRAM相结合的高速数据存储方案。该方案在分析SDRAM的工作时序和系统各功能模块的基础上,在Xilinx ISE 12.4的开发环境中,利用Verilog硬件描述语言编程,对数据的高速存储进行了设计输入和仿真验证,实现了SDRAM的突发全页传输模式,读写速度达到了100MHz,存储容量为64M,通过设计存储控制板实现了硬件测试,验证了该设计的可行性和准确性,实现了弹光调制傅里叶变换光谱仪高速大容量数据存储。

To effectively solve the problem of data acquisition with high speed and large capacity in the Photoelastic Modulation Fourier transform spectrometer,a high speed data storage scheme based on SDRAM and FPGA is proposed.On the basis of analyzing the working timing and each function module of SDRAM,Verilog HDL language in Xilinx ISE 12.4 development environment for the high speed data storage is used to design input and simulation verification,the SDRAM works in a full-page transmission mode,reading and writing speed reached 100 MHz,capacity up to 64M.Finally,by design case of a storage control panel,the hardware test is realized,the validity and feasibility of the presented design is demonstrated,and high speed and large capacity data storage in photoelastic modulation fourier transform spectrometer is also realized.