Search - 128 point fft

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[matlab] fft_PQ DL : 0: FFT的实现在LPC2378上。首先采用了拉个朗日插值算法对采集的电网波形频率跟踪，然后使用128点的FFT。-FFT on achieving the LPC2378. First used in the Rafah Colon day interpolation algorithm for the acquisition tracking grid frequency waveform, and then use the 128 point FFT.
Date : 2026-01-23 Size : 25kb User : 张红卫
[matlab] dsp_091044206_04 DL : 0: 对信号进行128点的fft变换还有补零到512点的fft变换，以及512点fft变换。-The signal 128 point fft transform complement zero to 512 point fft transform, and 512 point fft transform.
Date : 2026-01-23 Size : 1kb User : gaochao
[matlab] MATLAB_FFT DL : 0: 基于matlab的FFT算法运用；64点和128点的FFT的幅度谱-64-point and 128-point FFT amplitude spectrum use matlab FFT algorithm
Date : 2026-01-23 Size : 1kb User : 林鸿运
[matlab] FFT DL : 0: 1.x=0.5*sin(2*pi*15*t)+2*sin(2*pi*40*t)。采样频率fs=100Hz，分别绘制N=128、1024点幅频图。 2.x=0.5*sin(2*pi*15*t)+2*sin(2*pi*40*t),fs=100Hz,绘制：（1）数据个数N=32，FFT所用的采样点数NFFT=32；（2）N=32，NFFT=128；（3）N=136，NFFT=128；（4）N=136，NFFT=512。-1. X = 0.5* sin (2* PI* 15* t)+ 2* sin (2* PI* 40* t).Sampling frequency fs = 100 hz, respectively to draw N = 128, 1024 point amplitude-frequency figure. 2. X = 0.5* sin (2* PI* 15* t)+ 2* sin (2* PI* 40* t), the fs = 100 hz, drawing: (1) N = 32, NFFT = 32 (2) N = 32, NFFT = 128 (3) N = 136, NFFT = 128 (4) N = 136, NFFT = 512.
Date : 2026-01-23 Size : 1kb User : Shawn
[matlab] fft_128 DL : 0: 128-point FFT for split radix
Date : 2026-01-23 Size : 1kb User : rajesh