基于FPGA的傅里叶变换成像光谱仪实时数据采集与显示系统设计

利用可见光相机模拟干涉仪，基于FPGA设计了傅里叶变换成像光谱仪实时数据采集与显示系统，为后续的实时光谱复原奠定了良好的技术基础。该系统主要由采集、存储、数据变换及显示四个部分组成，主要涉及SAA7113、ILI9325等芯片的配置、SDRAM控制器的设计、像素的提取、色彩空间的变换等。经71ms初始化完成后，各部分协调运行，能够实时输出目标的图像信息，具有运算速度快，便于升级维护，可进行二次开发等优点。

The design of real-time data acquisition and display system of Fourier transform imaging spectrometer based on FPGA

By using visible light camera to simulate interferometer, we had designed a real-time data acquisition and display system of Fourier transform imaging spectrometer based on FPGA, which should establish a good technical foundation for the subsequent real-time spectrum recovery of spectrometer. The system is mainly composed of four parts of data acquisition, storage, conversion and display, mainly involves the configuration of SAA7113 and ILI9325 chip, the SDRAM controller design, the extraction of pixels, the color space transformation etc. It takes 71 milliseconds to initialize all parts. After initialization being completed, by the four parts of the system working coordinately, the system can output the target''s image in real-time with some advantages such as fast computation speed, easy to upgrade and being developed in second time etc.