PLL

说明：  S 函数使用及应用举例，对涉及到simulink里s函数的应用有详细的解释(The use and application of S function, for example, relating to the simulink function in the application of s has a detailed explanation)

matlab 的常用算法源代码，包含插值拟合/规划/方程求解等多个代码(matlab source code for commonly used algorithms, including interpolation fitting/planning/equations and other codes)

分析双极性不归零码的功率谱特性请输入随机序列的长度N= (ubplot(312) plot(f,lpf) title( 低通滤波器 ) axis([-fs/2 fs/2-0.2 1.2]) subplot(313) plot(f,abs(yr_lpf)/N) title( 经低通滤波后的频谱 ) xlabel( f /Hz ) )

％ 该Matlab程序基于牛顿－拉夫逊算法，用于计算已知导纳矩阵、PQ节点、PV节点、平衡节点(UA)的电力网络潮流 ％ U - 各节点母线电压 S - 各节点注入功率 S_net - 电力网络总损耗 ％ PQ_P - 实算PQ节点注入有功功率 PQ_Q - 实算PQ节点注入无功功率 ％ delt_PQ_P - 实算PQ节点有功功率修正值 delt_PQ_Q －实算PQ节点无功功率修正值 ％ delt_UA_P - 实平衡节点有功功率修正值 delt_U_2 - 实平衡节点电压平方修正值 ％ delt_PQV - 实算P Q U^2修正值 J - 雅可比矩阵 ％ e - 电压实部 f - 电压虚部 delt_ef - 电压实部与虚部修正值( The Matlab program based on the Newton- Raphson algorithm is used to calculate the admittance matrix is known, PQ node, PV node, the node balance (UA) the trend of the electricity networks U- the node bus voltage S- each node injection power S_net-- The total loss of electric power networks PQ_P- operator PQ is injected into active nodes PQ_Q- operator PQ is injected reactive power node delt_PQ_P- is considered the correct value of active power PQ node delt_PQ_Q- really count PQ node reactive power to amend the value of delt_UA_P- real active power balance of the correct value of the node delt_U_2- node voltage balance is the correct value of the square of delt_PQV- really count PQU ^ 2 the correct value of J- Jacobian matrix e- voltage real part f- the imaginary part of voltage delt_ef- voltage real part and imaginary part of the amendment value)

prediction of voice character with BP neural network

说明：  一个用MATLAB/SIMULINK做的四级倒立摆的控制系统模型(a MATLAB/Simulink do four inverted pendulum control system model)

picture qu zhao is very important to you(picture qu zhao)

本gatbx遗传算法工具箱是在原设菲尔德大学gatbx工具箱基础上的改进，扩展了原gabtx功能，将原始的基于命令式的mpga.m及sga.m文件封装成函数形式，使用更简单易懂，适合初学者或一些只要求用遗传算法解决实际问题而不需深究遗传算法本身的同学。(The gatbx genetic algorithm toolbox in the original design the Rumsfeld the University gatbx Toolbox based on the improvements, extended the original gabtx function, the functional form of the original package based the command-mpga.m sga.m file, more simple to use and easy to understand.suitable for beginners or some only require genetic algorithm to solve practical problems and do not need to get to the bottom of the genetic algorithm itself classmates.)

相关向量机(RVM)的matlab源程序，包含快速算法，内含代码使用说明。 RVM采取是与支持向量机相同的函数形式稀疏概率模型，对未知函数进行预测或分类。 优点： (1) 不仅仅输出预测目标量的点估计值,还可以输出预测值的分布. (2) 使用更少数量的支持向量,从而显著减少输出目标量预测值的计算时间. (3) RVM不需要估计过多的参数. (4) RVM对是否满足Mercer 定理的核函数没有限制,适应性更好(Relevance Vector Machine (RVM) of the matlab source code, including fast algorithm that contains code for use. RVM support vector machine is taken the same functional form sparse probabilistic model to predict the unknown function or classification. Advantages: (1) is not only the amount of output predicted target point estimates, but also the distribution of predicted values ​ ​ can be output. (2) using a smaller number of support vectors, thereby significantly reducing the output target amount predicted value calculation time. (3) RVM does not require excessive parameter estimation. (4) RVM meets Mercer theorem on the kernel function is not limited, and better adaptability)

frequency hopping code division multiple access