costas_loop

Huffman Coding & Decoding for Text Compression

说明：  《MATLAB与控制系统仿真实践》 源程序 数据(MATLAB and Control System Based Practice source data)

edgedtection with acceldsp

In this document we proposed a face recognition algorithm that enhance the recognition rate and reduce the complexity.

说明：  EM 算法是Dempster，Laind，Rubin于1977年提出的求参数极大似然估计的一种方法，它可以从非完整数据集中对参数进行 MLE估计，是一种非常简单实用的学习算法。这种方法可以广泛地应用于处理缺损数据、截尾数据以及带有噪声等所谓的不完全数据，可以具体来说，我们可以利用EM算法来填充样本中的缺失数据、发现隐藏变量的值、估计HMM中的参数、估计有限混合分布中的参数以及可以进行无监督聚类等等。(EM algorithm is a method for maximum likelihood estimation of parameters proposed by Dempster, Laind and Rubin in 1977. It can estimate parameters from incomplete data sets by MLE. It is a very simple and practical learning algorithm. This method can be widely used in dealing with the so-called incomplete data such as defective data, censored data and noisy data. Specifically, we can use EM algorithm to fill missing data in samples, find hidden variable values, estimate parameters in HMM, estimate parameters in finite mixed distribution, and so on. Unsupervised clustering and so on.)

说明：  此算法为最小二乘辅助变量法。uy2为含噪声数据，n=2,噪声模型n=2。左为输出数据，右为输入数据。k=2,3,4,5等等(Least-squares algorithm for the auxiliary variables. uy2 for data containing noise, n = 2, the noise model n = 2. Output data for the left and right for the input data. k = 2,3,4,5, etc.)

经典的直流电机双闭环调速系统模型,可用于仿真(The classic double-loop DC motor speed control system models can be used for simulation)

pwm整流器的建模仿真，通过matlab代码，信号维数的估计，构成不同频率的调制信号，从先验概率中采样，计算权重，用MATLAB实现的压缩传感。( Modeling and simulation pwm rectifier By matlab code, Signal dimension estimates, Constituting the modulated signals of different frequencies, Sampling a priori probability, calculate the weight, Using MATLAB compressed sensing.)

说明：  11电平的MMC的脉冲触发控制方法，含均压控制。(11 level MMC pulse trigger control method, including voltage sharing control.)

使用最小积分整定计算PID系数的例程，根据给出的传递函数，计算最佳的调整系数(Points using the least-tuning PID coefficient calculation routine, give the transfer function based on calculating the optimal adjustment factor)