CNM-algorithm

matlab实现插值与拟合，可以运行的程序(matlab program to complete chazhi and nihe)

Flexible construction of girth-six QC-LDPC Codes(The program constructs girth-six QC-LDPC codes given row-weight,k, column-weight,j, and sub-matrix size,m. The obtained parity-check matrix is stored in H. The construction has flexibility in that j,k and m can be varied.The program achieves girth-six by applying the row-column constraint. There are m rows in j submatrices. No two rows should share the same column more than once. This constraint is applied to avoid 4-cycles. The construction has flexibility in that j,k and m can be varied.)

对分法求极小值，最优计算方法的matlab范例(Points system and the minimum, optimal calculation methods matlab example)

自己编的周期图法谱估计，对初学者有所帮助，内还有一本书可供参考(own series of the Periodic Table spectral estimation, for beginners is helpful, there are still a book for reference)

rgb channel sepration...

BP神经网络容易陷于局部极小值，PSO算法在无约束非线性函数优化方面性能优越，通常可以直接找寻到全局最优解，即使不能搜多到全局最优解，也距离全局最优点不远。当然，基本PSO算法陷入局部极值也是有的。对于这个缺点目前还没有找到比较有效、省市的解决方案。本案例实现利用PSO算法和BP算法共同训练神经网络，先将网络进行PSO算法训练，然后BP算法接着进行小范围精细搜索，PSO算法训练神经网络的本质就是将输出误差函数（即能量函数）看成目标函数，PSO对能量函数进行全局寻找最小值。(BP neural networks are prone to local minimum values. The PS algorithm has superior performance in the optimization of unconstrained nonlinear functions. It can usually find the global optimal solution directly. Even if it can not find more global optimal solutions, it is not far from the global best. Of course, there is also a local extreme of the basic PO algorithm. For this shortcoming, there is no more effective, provincial and municipal solution. This case realizes the use of the SO algorithm and the BP algorithm to train the neural network. First, the network is trained in the SO algorithm, and then the BP algorithm is followed by a small range of fine searches. The essence of the PO algorithm training neural network is to regard the output error function(ie, the energy function) as the objective function, and the PO seeks a global minimum value for the energy function.)

图像处理程序，matlab的图像增强处理(Image processing, matlab image enhancement processing)

系统辨识里面的梯度校正参数辨识方法，实用的系统辨识算法(System identification inside the gradient correction parameter identification methods, practical system identification algorithm)

shell. Le presse papier (copier-coller) se trouve dans le menu edit . Enfin, pour accéder au logiciel Matlab, vous pouvez utiliser le menu démarrer ou taper simplement la commande matlab dans un shell

对输入信号序列经过窗函数处理后做FFT处理，其中窗函数可自定义为任意窗函数。(Of the input signal sequence processing done after the FFT processing window function, wherein the window functions can be customized to any window function.)