zuijiaboshuxingcheng

采用TLS-ESPRIT算法，进行空间阵列信号的频率估计(With TLS-ESPRIT algorithm to estimate the signal frequency space array)

matlab code for plot 2d gauss

最优化问题的相关算法，很全，有做些简单的修改就行。(Optimization of correlation algorithm, it is full, there are some simple changes to the line.)

提供了比较流行的人脸识别算法源代码，非常适合实验仿真(a very useful tool for face reconizer)

通过信号星座图来比较PSK和PAM对相位噪声的敏感程度(By PSK signal constellation diagram to compare and PAM on the sensitivity of phase noise)

matlab 读取显示.obj图形文件，在matlab界面中以三维图像形式显示，并将三维坐标信息生成 Excel保存。(Matlab to read display. Obj graphics files,A 3D image display in the matlab interface, and it will generate Excel save three-dimensional coordinate information.)

克里格法（Kriging）是地统计学的主要内容之一，从统计意义上说，是从变量相关性和变异性出发，在有限区域内对区域化变量的取值进行无偏、最优估计的一种方法；从插值角度讲是对空间分布的数据求线性最优、无偏内插估计一种方法。(Kriging (Kriging) is one of the main geostatistics, statistically speaking, is the variable correlation and variability within a limited area of the value of regionalized variables unbiased, best a method for estimation speaking the perspective of a data interpolation spatial distribution of solving linear optimal, unbiased estimate of the interpolation method.)

说明：  压缩感知Basis Pursuit基追踪算法，稀疏度和正确率的关系以及采样率和正确率的关系(Basis Pursuit based on compressed sensing and tracking relationships between sampling rate and accuracy of the algorithm, and the correct rate of sparsity)

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：  用matlab建立任意桁架模型，计算节点矩阵，约束矩阵等(Using matlab to establish any truss model, compute node matrix, constraint matrix, etc.)