时间序列的时频特性分析研究时间序列的傅里叶变换及逆变换，快速梅林变换及逆变换，短时离散傅里叶变换，得到瞬时频率。 研究时间序列的Born–Jondan时频分布图，Butterworth时频分布图，Choi–Williams时频分布图，得到瞬时频率。 -Time series analysis of time-frequency characteristics of time series of Fourier transform and inverse transform, the fa

ofdm system simulation including 16qam modulation fft windowing modules plus cp, You can get a very accurate amplitude, frequency, phase estimation, Simulation of doubly fed induction generator system.