fisher

matlab code for qpsk

3 Digit BCD to 7 segment indicator decoder

功率谱估计及其MATLAB仿真.经典功率谱估计是将数据工作区外的未知数据假设为零,相当于数据加窗。经典功率谱估计方法分为:相关函数法(BT法)、周期图法以及两种改进的周期图估计法即平均周期图法和平滑平均周期图法,其中周期图法应用较多,具有代表性。(The power spectrum estimation and simulation of MATLAB. Classic power spectrum estimation is unknown data in the data outside the workspace is assumed to be zero, equivalent to the data window. Classic power spectrum estimation method is divided into: the correlation function method (BT Act), the periodogram and two improved cycle diagram estimation method the average periodogram and smoothed average periodogram, which the periodogram method used more often, on behalf of sex.)

车载收音模块资料，数字调谐收音原理，控制方式等等(Car radio module data, digital tuning radio theory, control, etc.)

利用神经网络优化BP神经网络，能有效提高BP神经网络对非线性的拟合精度，效果较好。(Using neural network optimization BP neural network, BP neural network can effectively improve the accuracy of nonlinear fitting better.)

Collections of algorithms for removal of shadows in an image

AFSA_fxy是用人工鱼群算法（artificial fish swarm algorithm）解决二元函数寻优问题。文件打开后运行AFSA_fxy.m文件即可得到结果，代码中有详细注释，方便修改。运行示例已经保存为图片附在压缩包中。(AFSA_fxy is (artificial fish swarm algorithm) to solve the optimization problem with a binary function AFSA. Run AFSA_fxy.m file to get the file to open the result, the code has detailed notes, easy to modify. Run the sample has been saved as a picture attached to the compressed package.)

说明：  本程序实现了线性正抛物Radon 变换，反抛物Radon 变换，并附带有详细的注释。(this program is compiled in matlab used for computed tomography.it realize the reconstruction from origin image.)

Matlab搭的双馈感应式风力发电系统机侧变流器、网侧变流器的控制模型，此模型中参数已给定，经调试后能运行。(Matlab ride doubly-fed induction wind power system with machine-side converter, the grid-side converter control model, the model parameters have been given, by the debugger to run.)

说明：  1.被动悬挂设计simulink模型 2.对于任意一段路面谱，求出其功率谱密度与频率的分布关系，在标准路面图中画出曲线验证路面 3.积分白噪声法路面构造simulink模型 4.整车平顺性分析simulink模型 5.实际路谱案例，c级路面 6.悬架动载荷功率谱密度图像画图matlab编程(1. Simulink model for passive suspension design 2. For any section of road spectrum, the distribution relationship between power spectral density and frequency is obtained, and the curve is drawn in the standard road map to verify the road surface 3. The Simulink model of pavement construction based on the integral white noise method 4. Vehicle ride comfort analysis Simulink model 5. Actual road spectrum case, class C pavement 6. Matlab programming of suspension dynamic load power spectral density image drawing)