stft1

this is the code to apply hilbert transform on a signal.

Digital communication techniq

复调制的FFT变换，即ZOOMFFT，以及ZOOMFFT和FFT本质的注释，调试过，肯定没问题，希望对大家有帮助(FFT transform complex modulation that ZOOMFFT, as well as the nature of the comments ZOOMFFT and FFT, debug, certainly no problem, we want to help)

基于电压外环，电流解耦内环的三相PWM整流器仿真，电压外环采用PID控制，电流内环采用滑模控制，可以正常运行。(The three-phase PWM rectifier based on the voltage outer loop and the current decoupled inner loop is simulated, the voltage outer loop is controlled by PID, and the current inner loop is controlled by sliding mode.)

Fourier transform and DFT (Fourier transform)

Vth system calculation

说明：  基于蚁群的聚类案例分析分享基于蚁群的聚类案例基于蚁群的聚类案例(Based on ant colony clustering case)

结合双线性变换法数字巴特沃斯高通IIR滤波器。能起到检波作用(Bilinear transformation method combined with digital high-pass Butterworth IIR filter. Can play a role in detection)

说明：  隐马尔科夫模型的实现，可以使用的，很简单(hmm，is very simple)

OFDM链路级别仿真,包括数字调制与解调,AWGN信道,CP的添加与消除,零填充,(OFDM link-level simulation, including digital modulation and demodulation, AWGN channel, CP addition and elimination, zero-filling,)