Matlab实现的全相位频谱分析，可以自行设定点数和输入序列。结果包括频谱图和与普通fft的对比-Matlab to achieve all-phase spectral analysis, can draw up a point and input sequence. The results include the spectral figure and the comparison with ordinary fft

apfft实现了对相位的校正，相较于fft有很大的优势。(ApFFT implements the correction of the phase)