嵌入式硬件设计参考系列之DSＰ快速富利叶变换.pdf FAST FOURIER TRANSFORMS SECTION 5 FAST FOURIER TRANSFORMS I The Discrete Fourier Transform I The Fast Fourier Transform I FFT Hardware Implementation and Benchmarks I DSP Requirements for Real Time FFT Applications I Spectral Leakage and Windowing 5.a FAST FOURIER TRANSFORMS 5.b FAST FOURIER TRANSFORMS SECTION 5 FAST FOURIER TRANSFORMS Walt Kester THE DISCRETE FOURIER TRANSFORM In 1807 the French mathematician and physicist Jean Baptiste Joseph Fourier presented a paper to the Institut de France on the use of sinusoids to represent temperature distributions. The paper made the controve……