认识Simulink的重要模块库.doc

认识Simulink的重要模块库（Simulink模块库按照功能分类，包括13类模块库）一、Continuous（连续模块库）：它包括以下七个功能模块：1Derivative：输入信号微分模块；2Integrator：输入信号积分模块；3State-Space：线性状态空间系统模型；4Transfer-Fcn：线性传递函数模型；5Transport Delay：输入信号延时一个固定时间再输出；6Variable Transport Delay：输入信号延时一个可变时间再输出；7Zero-Pole：以零极点表示的传递函数模型。二、Discrete（离散模块库）它包括以下九个功能模块：1Discrete Transfer-Fcn：离散传递函数模型；2Discrete Zero-Pole：以零极点表示的离散传递函数模型；3Discrete Filter：实现无限脉冲响应（IIR）与有限脉冲响应（FIR）滤波器；4Discrete State-Space：离散状态空间系统模型；5First-Order Hold：实现一阶采样和保持器；6Memory：存储上一个时刻的状态值；7Unit Delay：一个采样周期的延时；8Discrete-time Integrator：离散时间积分器；9-Order Hold：实现零阶采样和保持器。三、Look-Up Tables（查询表模块库）它包括以下六个功能模块：1 Direct Look-Up Table(n-D):检索n维表，以重新获得标量、向量或2维矩阵2 Interpolation(n-D)using PreLook-Up:执行高精度的常值或线性插值3 Look-Up Table:使用指定的查表方法近似一维函数，即建立输入信号的查询表4 Look-Up Table(2-D): 使用指定的查表方法近似二维函数，即建立两个输入信号的查询表5 Look-Up Table(n-D):执行n个输入定常数、线性或样条插值映射6 PreLook-Up Index Search:在设置的断点处为输入执行检索查找和小数计算四、Math Operations（数学运算模块库）它包括以下25个功能模块：1 Abs：对输入信号求绝对值运算；2 Sum：加减运算，可以加减标量、向量和矩阵；3 Product：对输入信号求积和商运算；4 Dot Product：点积（内积）运算；5 Gain：比例运算，或称为常量增益（输入信号乘以常数）；6 Sign：表明输入符号信号或符号函数；7 MinMax：输出输入信号的最小值和最大值（即极值运算）；8 Slider Gain：可以用滑动条来改变增益；9 Matrix Gain：矩阵增益，即输入信号乘以矩阵；10Math Function：包括指数、对数函数、求平方、开根号等常用数学运算函数；11Rounding Function：取整运算函数；12Trigonometric Function：三角函数，包括正弦、余弦、正切等；13Logical Operator：逻辑运算14Relational Operator：关系运算15Complex to Magnitude-Angle：由复数输入信号转为幅值和相角输出；16Magnitude-Angle to Complex：由幅值和相角输入信号合成复数输出；17Complex to Real-Imag：由复数输入信号转为实部和虚部输出；18Real-Imag to Complex：由实部和虚部输入信号合成复数输出。19Algebraic Constraint: Constrains input signal f(z) to zero and outputs an algebraic state z. This block outputs the value necessary to produce a zero at the input. The output must affect the input through some feedback path. Provide an initial guess of the output to improve algebraic loop solver efficiency. 20Assignment: For vector mode: Y = U1 Y(E) = U2For matrix mode: Y=U1 Y(R,C) = U2where U1 = first input port, U2 = second input port, E = elements, R = rows, and C = columns and E, R, and C may be specified either in the blocks dialog or through an external input port.21Bitwise Logical Operator: Perform a bitwise operation on uint8, uint16 or uint32 input port data with values from the Second operand parameter. Hex values can be entered as strings, e.g., FF00.22Combinatorial Logic: Look up the elements of the input vector (treated as boolean values) in the truth table and outputs the corresponding row of the Truth table parameter. The input side of the truth table is implicit.23Matrix Concatenation: Perform horizontal or vertical concatenation. 1-D vector input signals are treated as column vectors, i.e., Mx1 matrices. The output is always a matrix.24Polynomial: Polynomial evaluation. Calculates P(u) given by the polynomial coefficient array P. P is sorted highest order to lowest order, the form accepted by MATLABs polyval function.25Reshape: Change the dimensions of a vector or matrix input signal. Output - a one-dimensional array (vector), - a column vector (Mx1 matrix), - a row vector (1xN matrix), or - a matrix or vector with specified dimensions, e.g., M, N or W.五、Model verification（模型验证模块库）它包括以下11个功能模块：1Check Static Lower Bound：检验信号是否大于或者等于指定的下限；2Check Static Upper Bound：检验信号是否小于或者等于指定的上限；3Check Static Range：检验输入信号是否在相同的幅值范围内；4Check Static Gap：检验输入信号的幅值范围内是否存在间隙；5Check Dynamic Lower Bound：检验一个信号是否总是小于另外一个信号；6Check Dynamic Upper Bound：检验一个信号是否总是大于另外一个信号；7Check Dynamic Range：检验信号是否总是位于变化的幅值范围内；8Check Dynamic Gap：检验信号的幅值范围内是否存在不同宽度的间隙；9Assertion：检验输入信号是否为非零；10Check Discrete Gradient：检验连续采样离散信号的微分绝对值是否小于上限；11Check Input Resolution：检验输入信号是否有指定的标量或向量精度。六、Model-Wide Utilities（模块实用模块库）它包括以下四个重要功能模块： 1 Doc Block：创建和编辑描述模型的文本，并保存文本；2 Model Info：在模型中显示版本控制信息；3 Timed-Based Linearization：在指定的时间，在基本工作空间中生成线性模型；4 Trigger-Based Linearization：当触发时，在基本工作空间中生成线性模型。七、Ports & Subsystems（端口和子系统模块库）它包括以下19个重要功能模块：1In1：为子系统或外部输入创建一个输入端口；2Out1：为子系统或外部输入创建一个输出端口；3Trigger：为子系统添加一个触发端口；4Enable：为子系统添加一个是使能端口；5 Function-Call Generator：一个指定的速率和指定的时间执行函数调用子系统；6 Atomic Subsystem：表示系统中包含的子系统,子系统模块表示一个真实的系统；7 Subsystem：表示系统中包含的子系统，子系统模块表示一个虚拟的系统；8 Configurable Subsystem：表示从用户指定的模块库中选择的任何模块；9 Triggered Subsystem：表示一个由外部输入触发执行的子系统；10Enabled Subsystem：表示一个由外部输入使能执行的子系统；11Enabled and Triggered Subsystem：表示一个由外部输入使能和触发执行的子系统；12Function-Call Subsystem：表示可以被其他模块作为函数调用的子系统；13For Iterator Subsystem：表示在仿真的单步时间内反复执行的子系统；14While Iterator Subsystem：当该模块放在子系统内时，该模块作为while子系统实现Simulink当中与C语言类似的while或do-while控制流语句；15If：实现Simulink当中与C语言类似的if-else控制流语句；16If Action Subsystem：表示一个由if模块触发执行的子系统；17Switch Case：实现Simulink当中与C语言类似的switch控制流语句；18Switch Case Action Subsystem：表示一个由switch模块触发执行的子系统。19Subsystem Examples: These are examples of how to use the different types of subsystems.八、Signal Attributies（信号属性模块库）它包括以下六个重要功能模块：1Data Type Conversion：将输入信号转化为模块中参数指定的数据类型；2IC：设置信号的初始值；3Rate Transition：处理以不同速度操作的模块之间的数据传输；4Probe：输出信号的属性，包括信号宽度、采样时间和（或者）信号类型；5Signal Specification：指定信号的属性；6Width：输出输入向量的宽度。九、Signal Routing（信号路由模块库）它包括以下15个重要功能模块：1Bus Creator：创建一个信号总线；2Bus Selector：输出从输入总线中选择的信号；3Mux：将几个输入信号组合为向量或总线输出信号；4Demux：将向量信号分离为输出信号；5Merge：将几个输入信号组合为单个输出信号；6Selector：从向量或矩阵信号中选择输入分量；7Manual Switch：在两个输入之间切换；8Multiport Switch：在多个模块输入进行切换；9Switch: Pass through input 1 when input 2 satisfies the selected criterion; otherwise, pass through input 3. The inputs are numbered top to bottom (or left to right). The input 1 pass-through criteria are input 2 greater than or equal, greater than, or not equal to the thresh hold. The first and third input ports are data ports, and the second input port is the control port.10Data Store Memory: Define a memory region for use by the Data Store Read and Data Store Write blocks. All Read and Write blocks that are in the current (sub) system level or below and have the same data store name will be able to read from or write to this block.11Data Store Read: Read values from specified data store.12Data Store Write: Write values to specified data store.13From: Receive signals from the Goto block with the specified tag. If the tag is defined as scoped in the Goto block, then a Goto Tag Visibility block must be used to define the visibility of the tag. After Update Diagram, the block icon displays the selected tag name (local tags are enclosed in brackets, , and scoped tag names are enclosed in braces, ).14Goto: Send signals to From blocks that have the specified tag. If tag visibility is scoped, then a Goto Tag Visibility block must be used to define the visibility of the tag. The block icon displays the selected tag name (local tags are enclosed in brackets, , and scoped tag names are enclosed in braces, ).15Goto Tag Visibility: Used in conjunction with Goto and From blocks to define the visibility of scoped tags. For example, if this block resides in a subsystem (or root system) called MYSYS, then the tag is visible to From blocks that reside in MYSYS or in subsystems of MYSYS.十、Sinks（接收器模块库）它包括以下九个重要功能模块：1Scope：示波器；2XY Graph：显示二维图形；3To Workspace：将输出写入MATLAB的工作空间；4To File(.mat)：将输出写入数据文件（后缀名为.mat）；5Display: Numeric display of input values.6Floating Scope: Simulink/Sinks/Floating Scope7Out1: Provide an output port for a subsystem or model. The Output when disabled and Initial output parameters only apply to conditionally executed subsystems. When a conditionally executed subsystem is disabled, the output is either held at its last value or set to the Initial output. The Initial output parameter can be specified as the empty matrix, , in which case the initial output is equal to the output of the block feeding the out port.8Stop Simulation: Stop simulation when input is non-zero.9Terminator: Used to terminate output signals (Prevents warnings about unconnected output ports).十一、Sources（输入源模块库）它包括以下18个重要功能模块：1In1：为子系