modu_sym

研究人类视觉处理机制的有用代码，包括测试程序，特征提取，结果显示等有用 matlab代码，值得共同研究(Pca algorithm useful for human visual processing code)

Speech Noise estimate

运用粒子群优化算法对ARMA(p,q)模型的阶数进行优化是可行的，且利用优化后的ARMA模型对航空发电机状态趋势进行分析的结果十分准确，与原始数据所表现出的航空发电机状态变化趋势基本一致。经计算，此时分析结果的平均相对误差较小，仅为1.38 ，与优化前构建的ARMA模型相比，平均相对误差降低0.23个百分点，优化效果明显。(Using particle swarm optimization algorithm to optimize the order of the ARMA (p, q) model is feasible, and the use of the results of the ARMA model optimized air generator status trends analysis is very accurate, and the raw data showed aviation the generator status consistent trend. Calculated analysis of the results, the average relative error is small, only 1.38 , compared with the the ARMA model built before optimization, average relative error is reduced by 0.23 percentage points, to optimize the effect is obvious.)

说明：  这是一个小波包，里面有很多关于小波函数的东西(This is a wavelet package with lots of things about wavelet functions.)

field oriented control of induction motor

包括牛顿法，拉格朗日法，ＬＵ分解法，１００*１００阶稀疏矩阵方程组的解法等(Including the Newton method, Lagrangian method, LU decomposition method, 100* 100 band sparse matrix equations of the solution, etc.)

对能纠正5个信道错误的BCH符号进行有些分析，matlab仿真。(Encoding for BCH codes and shows it s BERperfermance.)

It cab be open old format of mdl file on new version of matlab invalid model name or file does not exist. due to the presence of characters that are not supported in the current character encoding setting windows-949 clc clear close all bdclose all set_param(0, CharacterEncoding , ISO-8859-1 )

new model varying load frequency control

说明：  <最优化及matlab的应用>课后题的编程(Most optimized operating)