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一阶弹性波方程交错网格差分法(时间2阶空间4阶，带边界条件) 最基础的波长快照(Elastic wave equation of first order staggered-grid difference method (time 2-order space of order 4 with boundary conditions) the wavelength of the most basic snapshot)

ofdm without noise codes for matlab

说明：  《matlabsimulink通信系统建模与仿真实例分析》代码(&quot Matlabsimulink communication system modeling and simulation analysis&quot code)

实现ＫＮＮ分类器，很好用的代码，我们这边都用它哟，给大家分享一下(KNN classifier to achieve, good with the code, we here have used it yo to share with you)

基于多目标的PSO用于解决背包问题的程序，运行上比较花时间，请耐心等待。(Procedures used to solve the knapsack problem based on multi-objective PSO run more to spend time, please be patient.)

利用matlab对stk已经做好的卫星编队进行数值仿真(Numerical simulation using matlab ready stk satellite formation)

transformateur power system

说明：  用matlab实现的isomap降维算法，该算法为论文原下载算法。(Use matlab to achieve the isomap reduction)

说明：  模型预测电流控制其控制思想基于以下原理：首先，功率变换器产生的开关状态个数有限，且通过建立模型可以预测每一个开关状态下被控变量的对应变化特性；其次，定义价值函数评价被控变量的预测值，为判别最优有限开关状态提供依据；最后，计算出每一种开关状态下的价值函数值，以此评价每一种开关状态下被控变量预测值的优劣，选择出最优的开关状态并应用。(The control idea of model predictive current control is based on the following principles: firstly, the number of switching states produced by power converter is limited, and the strain characteristics of controlled variables under each switching state can be predicted by establishing a model; secondly, the value function is defined to evaluate the predicted values of controlled variables, which provides a basis for judging the optimal finite switching state; lastly, the optimal finite switching state is calculated. The value function value under switching state is used to evaluate the predicted value of controlled variables under each switching state, and the optimal switching state is selected and applied.)

说明：  频谱分析，能够有效识别信号中的频率成分，适用于DSP课程设计(Spectrum analysis, which can effectively identify the frequency components in the signal, is suitable for DSP curriculum design)