chengjichaxun

计算潮流时改变节点类型,比如PQ节点，PV节点，平衡节点等等等等(When calculating trend change node types, such as PQ nodes, PV node, the node balance, etc., etc.)

脑电特征提取的的matlab算法EEG feature extraction(EEG feature extraction algorithm matlab EEG feature extraction)

接收端对有干扰污染后的信号进行对应解码，并计算误码率； 将输出仍然排列为n列的矩阵，计算监督矩阵H，用编码矩阵和监督矩阵相乘判断是否有误码，并根据错误图案纠正误码(The receiving end of pollution have interference signals corresponding to decoding, and calculate the bit error rate the output is still ranked as the n column matrix, computing the supervision matrix H, with matrix encoding and monitoring to determine whether matrices have error, and in accordance with error patterns to correct error)

jpeg compression matlab source code

构建了简单的通信系统，其间对载波相位进行了估计，同时在函数中给出了估计误差，还计算了误码率以及采用信道编码的误码率(Construction of a simple communication system, during which the estimate of the carrier phase, and gives in function of the estimation error, also calculated BER and the channel coding error rate)

汽车五自由度模型，当今很多悬架研究机构和科研单位运用各种软件对汽车悬架进行优化。MATLAB运用也越来越广，在汽车动力学研究当中起着重要作用。当然，汽车振动动力学仿真和分析也大量运用MATLAB/simulink模块。(Five degrees of freedom vehicle model, many of today s research institutions and research institutes in suspension using a variety of software to optimize the suspension on the car. MATLAB using more and more widely in vehicle dynamics studies which plays an important role. Of course, dynamic simulation and analysis of vehicle vibration also make extensive use of MATLAB/simulink module.)

We see that HTH matrix is almost diagonal as the off diagonal elements are nearly zero. So we are getting exact estimation in case of PRN INPUT due to diagonality of HTH matrix. As seen that the unknown inpulse response ( h ) and estimated impulse response ( hth ) are coming out to be exactly same. The estimation even gets better for large N .as we get the HTH matrix perfect diagonal. So we come to know that we can estimate the unknown parameters exactly when PRN input is used.

heat 2D code for finite element, very important

一个很经典的matlab例子，适合刚入门的人学习(dddddddddddddd)

关于数学模型的一些简单介绍以及如何进行数学建模(Mathematical Modeling)