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中文摘要：
FFT，即为快速傅立叶变换，是离散傅立叶变换的快速算法。在MATLAB环境下，用户可以集成地进行程序设计、数值计算、图形绘制、输入输出、文件管理等各项操作。作为一种广泛用于解决实际课题和数学模型问题的工具，FFT的软件仿真研究首先是基于MATLAB的。与传统的ASIC(专用集成电路)和DSP(数字信号处理器)相比，基于FPGA实现的数字信号处理系统具有更高的实时性和可嵌入性，能够方便地实现系统的集成与功能扩展，因而目前FFT的硬件实现更多的借助于FPGA。单独借助于MATLAB和FPGA来实现FFT的工作量还是很大的，于是提出了基于Dsp Builder的改进方案。通过Dsp Builder，就可以把在MATLAB中建好的数学模型直接转换成相应的硬件描述语言(这里具体是VHDL语言)，然后经过编译、综合就可以进行仿真，或者是直接将编程目标文件下载到FPGA芯片里进行整个DSP系统的在板验证。所以在对基于FPGA的系统进行设计的时候，Dsp Builder可以对设计者提供非常强大的帮助。
关键词 快速傅立叶变换 专用集成电路 数字信号处理器 硬件描述语言
Title The research of FFT based on FPGA and MATLAB
Abstract
FFT, namely, the fast Fourier transform, discrete Fourier transform is a fast algorithm. Through MATLAB environment, users can conduct of the proceedings integrated design, numerical computation, graphics rendering, input and output, document management and other operations. As a widely used in solving practical problems and mathematical model of the tool, FFT software simulation is the first study based on MATLAB. With the traditional ASIC (application specific integrated circuit) and the DSP (digital signal processor), the FPGA-based digital signal processing system has a higher real-time and can be embedded, to facilitate the realization of system integration and functional expansion thus the current FFT hardware FPGA more aid. Individual using MATLAB and FPGA to realize FFT workload was huge. So the Dsp Builder Based on the improvement program. Dsp Builder can bring in MATLAB mathematical model built directly into the corresponding hardware description language (here specifically VHDL), and then built, integrated simulation can be carried out, or directly to the target file download programming FPGA chip to carry out the whole system in DSP board certification. So in FPGA-based systems design, Dsp Builder designers can provide very powerful help.
Keywords Fast fourier transform ；Application specific integrated circuit ；DSP ；Hardware description language
