DFIGpwm

求解瞬时频率函数，一般在matlab时频分析中使用(Solve the instantaneous frequency function, usually in the time-frequency analysis using matlab)

很好的一个A*算法，可以自己选择障碍物和目标点(A* algorithm is a very good, you can choose the target point and obstacle)

直接序列扩频就是直接用具有高码率的扩频码序列在发端去扩展信号的频谱。而在收端，用相同的扩频码序列去进行解扩还原成原始的信息。(Direct Sequence Spread Spectrum is the direct use of the spreading code sequence with a high rate in the originator to expand the spectrum of the signal. Receiving end, using the same spreading code sequence to despread the broadening of the spread spectrum signal to restore the original information.)

一种用Newton-Rapson Method来计算能量的Matlab code(Newton-Rapson Method to determine the slack bus power( 3 buses)/)

FFT变换,获得采样数据基本信息，时域图，频域图,FFT transform, sampling data basic information, time domain, frequency chart(FFT transform, sampling data basic information, time domain, frequency chart)

Analyzing performance of mobile MIMO-OFDM wireleed systems

对生活照片的人脸分割，达到一定的实用效果，适合于新手(Photos of life who face segmentation, to achieve some practical results, suitable for beginners)

hht轉換,Hilbert-Huang (HHT) 轉換方法是黃鍔根據近代知名數. 學家Hilbert 的數學理論設計(hht transform)

Matlab实现的奇异谱分析算法。近年来兴起的一种研究非线性时间序列数据的强大的方法。(Matlab achieved singular spectrum analysis algorithms. Powerful method of nonlinear time series data rise in recent years.)

a function that write seeds for rand and randi based on current time