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xinhao
- 离散Fourier变换（简称DFT）为离散信号的分析从理论上提供了变换工具，但由于计算时间较长而难以实现，快速Fourier变换（简称FFT）则是一种减少计算时间的有效算法。本文在对DFT计算量进行分析的基础上指出了FFT的实现途径与计算方法，针对FFT算法进行了程序设计并给出了应用实例。
FFTF
- vb6.0编译，fft对语音信号的分析，全套代码-fft analysis
0662503
- FFT子程序编写及应用和FFT对连续信号进行频谱分析,很好-FFT subroutine writing and application and FFT spectrum analysis was carried out on the continuous signal, is very good
06215483
- FFT子程序编写及应用和FFT对连续信号进行频谱分析,很好-FFT subroutine writing and application and FFT spectrum analysis was carried out on the continuous signal, is very good
end
- FFT子程序编写及应用和FFT对连续信号进行频谱分析,很好-FFT subroutine writing and application and FFT spectrum analysis was carried out on the continuous signal, is very good
示波器波形分析
- 首先读取csv文件（来自示波器或其他来源），csv是字符格式的文本文件。然后，对采样波形进行谐波分析，将输入信号分解成：A0直流分量，A1基频分量，A22次谐波，A33次谐波……N噪声。采用的是加hanning窗的FFT算法。最后，求取 总谐波失真率THD（%）(First read the CSV file, and CSV is a character format text file. Then, the input signal is decomposed into A0 DC comp