tutorial_matlab

Assume that a direct sequence spread spectrum system uses the Barker code of length 7 (N=7) as its spreading sequence. a. Randomly generate 8 symbols (d0~d7) from the set {+1,-1}. b. If each chip of the Barker code is denoted as cj, j=0~6, spread each symbol di by the Barker code. (Please refer to p. 17 of the slides.) Use “stem” to plot the signals before spreading and after spreading

This MATLAB code computes the covariance matrix of a random variable

说明：  振动烈度计算的MATLAB算法，根据振动加速度信号的频域积分计算振动烈度(The MATLAB algorithm for calculating vibration intensity, vibration acceleration signals according to frequency domain integral calculation of vibration severity)

This matlab program is developed to solve timetabling problem using simulated annealing algorithm

pheromone levels of terms based on the quality of the best rule among the rules constructed improves the predictive accuracy for some datasets.

随机载荷模拟及雨流计数方法在matlab中的实现(Random load simulation and rain flow counting method implemented in matlab)

说明：  系统采用LC滤波，利用PR控制器对逆变器输出电压进行闭环控制。PR控制器在逆变器控制中应用很多。PR控制能够在谐振频率处提供无穷大的增益，因而对谐振频率处的电流信号实现无静差跟踪，并且易于实现，可有效降低系统成本。(The system uses LC filter and PR controller to control the output voltage of inverter. PR controller is widely used in inverter control. PR control can provide infinite gain at the resonant frequency, so the current signal at the resonant frequency can be tracked without static error, which is easy to implement and can effectively reduce the system cost.)

Two-level Inverter PWM.........

matlab 线性算法的研究，适合初学者学习(matlab linear algorithm, suitable for beginners to learn)

预测得到最优代谢通量分布而进行最适单基因敲除的例程(Predicted the optimal metabolic flux distribution for optimal single-gene knock-out of the routine)