摘要
分析了FFT算法的原理,并利用DSP Builder建立了输入为8点基-2 FFT算法的基本模型,在Simulink和QuartusⅡ中分别进行了仿真,并将仿真结果与Matlab仿真值进行了比较,实现了8点实序列FFT算法.基于DSP Builder的FFT算法设计简单,可以重复使用,大大提高了设计效率.
The FFT algorithm principle is analyzed, make use of DSP Builder to have built 8 points of the decimate in time（DIT） radix -2 fast Fourier transform（ FFT）, has separately carried on the simulation in Simulink and Quartus Ⅱ. Then the author imitated the simulation result and the true value of Matlab to carry on the comparison, realized 8 points of real number sequence FFT algorithm, had the design based on the DSP Builder FFT algorithm to be simple, may duplicate uses, greatly enhanced the rated capacity.
出处
《重庆文理学院学报（自然科学版）》
2007年第3期40-42,53,共4页
Journal of Chongqing University of Arts and Sciences
基金
重庆文理学院重点项目资助金资助项目(Z2006WX19)
