ex3_20

说明：  基于Matlab编写的手写字符特征提取代码(Matlab-based feature extraction handwritten character written in the code)

design EKF for low cost INS/GPS

通过编程计算可得恢复后图像与原始图像的归一化均方误差为：(By programming available to restore the original image after the image and normalized mean square error:)

混合整数非线性规划中的BNB20的源码资料，源码中包含了和实数寻优函数fmincon的对比(Mixed Integer Nonlinear Programming “BNB20” source of information, source code contains a real number and contrast optimization function “fmincon”)

nakagami 衰落信道上几种数字调制方式的误码率仿真(the fading channels several digital modulation in nakagami BER simulation)

这是阵列信号MUSIC算法的程序，是最小二乘ＭＵＳＩＣ的，已经测试过了(This is the MUSIC algorithm for array signal process, is the least squares MUSIC, and has tested the)

首先提出了基于微分几何控制理论的双馈发电机非线性多输入多输 状态反馈解藕控制方案，通过非线性坐标变换和非线性状态反馈，使双 发电机的磁链和转速两个子系统实现了动态完全解藕。其次采用基于定 磁场定向的双馈发电机矢量控制，实现定子侧有功功率和无功功率的解藕 为了消除交叉藕合电动势对发电机参数的影响，采用内模控制解藕控制 案，使系统具有良好的输出动态性能。最后在分析双馈发电机的数学模 和矢量控制的基础上，提出了一种基于模型参考自适应方法的定子、转 磁链观测、发电机转速估计和转子电阻辨识算法，应用Lyapunov原理证 了估计的收敛性，并应用于上述解藕控制方案中。在对算法进行理论推 的基础上，应用Matlab/simulink，对各个算法和系统进行了仿真，检验了 算法和控制方案的可行性。 (First proposed nonlinear multi-input multi-input state feedback the decoupled control programs through nonlinear coordinate transformation and nonlinear state feedback control theory based on differential geometry doubly-fed generator, dual generator flux and speed sub-systems to achieve the dynamic completely decoupled. Secondly, based on the fixed magnetic field oriented vector control of doubly-fed generator stator side active power and reactive power decoupling in order to eliminate the cross-coupling of the electromotive force of the generator parameters using the internal model control decoupling control case, so that the system which has good dynamic performance. Finally, in the analysis of the doubly-fed generator based on the mathematical model, and vector control, a method based on the model reference adaptive stator, turn flux observer, generator speed estimation and rotor resistance identification algorithm using the Lyapunov principle permit estimated convergence, and appl)

LSB隐写算法中的随机数生成函数，和大家一起分享，欢迎下载(Generating function of random number in LSB steganography algorithms)

This package implements a general purpose Reed-Solomon encoding and decoding facility.

介绍了原型滤波器的设计，并比较了不同混叠因子下滤波器的性能(this code include the design of the prototype filter,which is widely used in the multicarrier communication.we also compare the performance with different coefficient.)