题 目： 基于 dsp 的 fft 频谱分析方法研究 A 基于 dsp 的 fft 频谱分析方法研究摘要：计算机科学和微电子技术在当今社会飞速发展并扮演了重要的角色,基于数字信号处理的频谱分析几乎涉及到所有的工程技术领域并且发挥着极其重要的作用。DSP 具有的性质，具体包括了稳定性、大规模集成性以及可重复性，尤其具有很高的可编程性、处理效率快，对于发展和应用频谱分析技术而言的带来了巨大的机遇。数字信号处理主要从数字滤波和频谱分析两个方面解决信号处理问题。本文主要研究基于 DSP 用 FFT 变换实现对信号的频谱分析,通过对 DFT 以及 FFT 算法进行研究,从基础深入研究和学习,掌握 FFT 频谱分析方法的关键。借助学习开发环境和 DSP 芯片工作原理,对 CCS 和 MATLAB 的简单调试和软件仿真合理掌握，验证了 FFT 算法的正确性，完成基于 DSP 对信号的实时频谱分析。关键词：DFT、FFT、频谱分析、DSPResearch on FFT Spectrum Analysis method based on DSPAbstract：Computer science and microelectronics technology play an important role in the rapid development of modern society. Spectrum analysis based on digital signal processing involves almost all engineering fields and plays an extremely important role. Research on spectrum analysis is one of the main development directions. Digital signal processing basically solves the problem of signal processing from two aspects, one is digital filtering, the other is spectrum analysis. This paper mainly studies the spectrum analysis of signal based on DSP and FFT transform. Through the research of DFT and FFT algorithm, the key of FFT spectrum analysis method is grasped from the basic research and study. The stability of DSP and the large-scale integration of DSP are discussed. Repeatability, especially high programmability and high processing speed, brings great opportunities to the development and application of spectrum analysis technology. Through the study of the working principle and development environment...
