Ballp26beam

电子通信系统的建模与仿真 第10章 声学仿真 10.1 回声试验 10.2 多普勒效应 10.3 声学信号的滤波特性试验 10.4 交混回响 10.5 短时傅立叶变换(Electronic communications system modeling and simulation of Chapter 10 Simulation 10.1 acoustic echo test 10.2 Doppler Effect 10.3 acoustic signal filtering properties of the mixed response from the pilot pay 10.4 STFT 10.5)

IT IS A DOCCUMENT ABOAT REACTIVE POWER

带有反馈的逆变电路，可实现DC/AC转化，反馈电路由PWM波控制(Inverter circuit with feedback)

Elman神经网络：Elman网络是 J. L. Elman于1990年首先针对语音处理问题而提出来的, 它是一种典型的局部回归网络( global feed for ward l ocal recurrent)。Elman网络可以看作是一个具有局部记忆单元和局部反馈连接的前向神经网络。Elman网络具有与多层前向网络相似的多层结构。它的主要结构是前馈连接, 包括输入层、 隐含层、 输出层, 其连接权可以进行学习修正 反馈连接由一组“结构 ” 单元构成,用来记忆前一时刻的输出值, 其连接权值是固定的。在这种网络中, 除了普通的隐含层外, 还有一个特别的隐含层,称为关联层 (或联系单元层 ) 该层从隐含层接收反馈信号, 每一个隐含层节点都有一个与之对应的关联层节点连接。关联层的作用是通过联接记忆将上一个时刻的隐层状态连同当前时刻的网络输入一起作为隐层的输入, 相当于状态反馈。隐层的传递函数仍为某种非线性函数, 一般为 Sigmoid函数, 输出层为线性函数, 关联层也为线性函数。(Elman neural network: Elman JL Elman network is first proposed for speech processing problems in 1990. It is a typical local regression network (global feed for ward l ocal recurrent). Elman network can be seen as having a forward neural network of local memory unit and local feedback connections. Elman network has a multi-layer multilayer structure similar to the network. Its main structure is a feedforward connection, comprising an input layer, a hidden layer and output layer, which can be connected right learning correction feedback connected by a set of " structural" units, the output value of the memory for the previous time, which connection weights are fixed. In such a network, in addition to ordinary hidden layer, there is a special hidden layer, called an associative layer (or contact layer unit) this layer receives feedback signals the hidden layer, each hidden layer node has an associated layer node corresponding connection. The role of the associated layer is fo)

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,davenport风速谱，4阶线性滤波法，绝对可以用！(Matlab, Davenport wind speed spectrum, the 4 order linear filter method, the absolute can be used! Can not use, you cut me!)

电力系统潮流分析仿真程序，使用power worldsimulator 软件，可以直接查看潮流运行结果，手动操作的变化等情况，非常适合初学者！实例大部分是基于IEEE标准算例仿真，还有些是专门针对电力系统故障仿真。(Power world simulator demos for beginners, which is easy to learn and easy to oprate,very useful and powerful software.these are the test cases, most of are made IEEE standard cases.)

2007年乘公交，看奥运，乘车路线matlab数据分离程序(2007, by public transport, the Olympics, travel routes separated program data matlab)

信道的仿真，对莱斯信道的仿真，希望对你有帮助，还是不错的(Channel simulation, the simulation of the Rice channel, want to help you, or good)

稀疏分析用于处理欠定盲源分离问题，有英文注释(Sparse analysis dealing with underdetermined blind source separation, English Notes)