chongji

希望此段源编码能给所有需要它的朋友带去快乐，(This source code can give hope to all those in need of a friend brought it happiness,)

一个很有用的程序，ML法能够很好的估计信号的信噪比,最大似然（ML）准则和最大后验概率（MAP）准则。( A very useful program, ML estimation method can be a good signal to noise ratio, Maximum Likelihood (ML) criteria and maximum a posteriori (MAP) criterion.)

说明：  dfig 基于DQ轴同步旋转坐标轴系数学模型下的双馈发电机simulink (H Fuzzy fangzhen)

使用m语言对OQPSK调制方式进行仿真模拟，可以得到OQPSK调制前后以及加噪前后基带信号对比、频谱对比、星座图和误码率(您是不是要找： 使用c语言对QPSK调制方式进行仿真模拟,可以得到OQPSK调制前后以及加噪前后基带信号对比、频谱对比、星座图和误码率 Use m language OQPSK modulation system simulation, you can get around the OQPSK modulation, and baseband signal plus noise before and after contrast, spectral contrast, constellation diagrams and bit error rate)

实现mean shift 均值漂移的基本的MATLAB算法 带有部分注释(Mean shift to achieve the basic mean shift algorithm with some of the MATLAB Notes)

利用联合对角化分数低阶空时矩阵进行冲击噪声环境下的二维DOA估计(Use of joint diagonalization fractional lower order two-dimensional space-time matrix DOA estimation under impulsive noise environments)

It is about how to extract the pneumothorax region automatically.

说明：  多元统计分析过程下的主元个数的计算，运用于pca以及pls的数据分析算法中(the calculation of principal components)

先归一化输入输出参数，用KMens优化RBF神经网络中心值，然后计算隐节点数据中心间的距离（矩阵），得到各隐节点的扩展常数（宽度），接着用最小二乘法得到各隐节点的输出权值，对数据进行反归一化，并绘图得到神经网络输出与测试集图，同时进行性能评价(First, the input and output parameters are normalized, the central value of the RBF neural network is optimized by KMens, then the distance (matrix) between the data centers of the hidden nodes is calculated, and the extended constant (width) of the hidden nodes is obtained. Then the output weights of the hidden nodes are obtained by the least square method, and the data are back normalized, and the neural network is drawn. Output and test set diagrams, and performance evaluation)

image segmentation multi model levelset