Simulink-仿真和基于模型的设计
Simulink® is an environment for Model-Based Design for dynamic, multidomain simulation and implanted systems. It renders an interactional customizable set of block libraries and graphical environment that permit developers simulate, design, test and implement a variety of time-varying systems comprising controls, communications, video processing, image processing and signal processing.
Cardinal Prominent Attributes
全包and expansible libraries of predetermined blocks.
用于管理和组装非合理框图的协同图形编辑器。
Power to deal complex designs by sectioning models into power structure of design constituents.
模型Explorer可以创建，导航，搜索和配置与模型链接的所有信号，属性，生成的代码和参数。
Application programming interfaces (APIs) that permit developers link with other simulation programs and integrate hand-written code
MATLAB Function blocks for contributing MATLAB algorithms into embedded system implementations and Simulink.
Simulation modes for campaigning simulations interpretative or at composed C-code accelerates employing variable or fixed step solvers.
Graphical profiler and debugger to analyze simulation outcomes and then diagnose execution and unpredicted behavior in the design.
完全登录到MATLAB，以可视化和分析结果，定义信号，自定义建模环境，测试数据并自定义建模环境。
模型诊断和分析工具，以确定模型一致性并区分建模错误。
Simulink is integrated with MATLAB®, furnishing immediate accession to an all-embracing range of tools that permit developers formulate algorithms, create batch processing scripts, analyze and visualize simulations, define signal, parameter, test data and customize the modeling environment.
Selecting and Customizing Blocks
Simulink软件构成了通常在建模系统中采用的功能库。这些构成：
连续和独特的动态块，例如单位延迟和集成。
Algorithmic blocks, such as Product, Lookup Table and Sum.
结构块，例如开关，总线选择器和MUX。
合并MATLAB算法和手写代码
When developers integrate MATLAB® code, developers can address MATLAB functions for visualization and data analysis. In addition, Simulink permits developers employ MATLAB code to design embedded algorithms that can then be positioned via code propagation with the rest of the model. Developers can in addition, integrate hand-written Fortran, Ada code and C at once into a model, modifying developers to produce custom blocks in the model.
Building and Editing The Model
使用Simulink，开发人员通过将块从库浏览器删除和拖动块上的图形编辑器来构建模型，并将它们与在块之间展示数学关系的行将它们关联在一起。开发人员可以通过使用图形编辑功能（例如糊，撤消，复制，分发，调整和对齐）来订购模型。
Options for associating blocks in Simulink. Developers can link blocks by hand, by employing the mouse, or mechanically, by routing out lines all over interfering blocks and via complex network topology.
The Simulink developer interface applies developers accomplished check over what developers can consider and employ onscreen. Developers can add up the submenus and commands to the context and editor menus. Developers can in addition, hide and disable menus, dialog box controls and menu items.
Organizing The Model
Simulink permits developers devise the model into absolved, accomplishable levels of hierarchy by employing model and subsystems referencing. Subsystems capsulize a group of signals and blocks in a single block. Developers can add up a custom user interface to a subsystem that conceals the contents of the subsystem and attains the subsystem come out as an atomic block with its own parameter and icon dialog box.
Produce hierarchy and modularize system behavior employing subsystems
Developers can in addition, section the model into design constituents to simulate, verify and model each constituent severally. Constituents can be saved as distinguish models by employing as subsystems in a library or model referencing. They are simpatico with configuration management systems, such as ClearCase and CVS and with any recorded source command provider application on the Windows® platforms.
以这种方式协调模型允许开发人员选择设计任务的特定级别。为了说明，开发人员可以采用简单的关系来建模高级规定，并随着开发人员的执行而添加更多的详细关系。
Manage Design Variants
Manage design variants in the similar model employing variant subsystems and reference model variants. This capability modifies the management and creation of designs that share constituents, as one model can present a family of designs. Manage variants of a blueprint and employ data-driven considerations to switch among them.
Conditionally Executed Subsystems
Conditionally executed subsystems permit developers alter system dynamics by altering or disqualifying particular sections of the design via ascertaining logic signals. Simulink permits developers make control signals that can allow or activate the execution of the subsystem established on particular events or time
逻辑块允许开发人员模拟简单命令，可以检查触发或启用子系统。开发人员可以使用状态流构成更多的逻辑检查系统以及模型状态机。
Determining and Managing Signals and Parameters
Simulink® permits developers to control and define the attributes of parameters and signals linked with the model. Signals are time-varying amounts constituted by the lines associating blocks. Parameters are coefficients that assists to define the behavior and dynamics of the system.
Parameter and signal attributes can be assigned immediately in the diagram or in a distinguish data dictionary. Employing the Model Explorer, developers can bring off the data dictionary and apace function a model by containing various data sets.
开发人员可以定义以下信号和参数属性：
数据键是单个，签名的未签名的8-，16或32位整数或双人。布尔和定点，
Dimensions is vector, scalar, N-D arrays or matrix.
复杂性是复杂的或真实的值。
Maximum and minimum range, engineering units and initial value.
固定点数据案例提供了对绝对和缩放单词长度最多128位的支持。这些数据类型要求Simulink®固定点TM模拟和提出代码的软件。
开发人员还可以将信号采样模式定义为基于帧或基于样本的信号采样模式，以允许在DSP系统和Simulink工具箱中更加消散的信号诉讼应用程序。
Employing Simulink data-type objects, developers can define bus signals and custom data types. Bus signals permit developers define interfaces among design constituents. Simulink permits developers ascertain the level of signal stipulation. If developers do not assign data dimensions, Simulink determines them via extension. Developers can assign only constituent interfaces or all data for the model. In all illustrations, Simulink carries on consistence ascertaining to ascertain data integrity.
Developers can cut back the ambit of the parameters to peculiar contributions of the model via a power structure of workspaces, or apportion them all over models via a global workspace.
Running a Simulation
After constructing the model in Simulink®, developers can simulate its dynamical behavior and consider the results alive. Simulink software renders several features and tools to ascertain the accelerate and accuracy of the simulation, constituting variable-step solvers and fixed-step, a model profiler and graphic debugger.
Employing Solvers
Solvers are numerical integration algorithms that compute the system dynamics over time employing data carried in the model. Simulink renders solvers to affirm the simulation of a broad range of systems, comprising discrete-time (digital), continuous-time (analog), multirate systems of any size and hybrid (mixed-signal).
These solvers can simulate firm systems and systems with state events, such as discontinuities, comprising instant alterations in system dynamics. Developers can determine simulation options, comprising the properties and type of the simulation start, stop times and solver and whether tor save or load simulation data. Developers can in addition, set diagnostic data and optimization for the simulation. Various combinations of alternatives can be carried through with the model.
调试模拟
Simulink调试器是一种交互式工具，用于在Simulink模型中取消模拟结果以及将不可预见的行为放置和诊断。它允许开发人员一次通过模拟一种方法逐步踩踏模型中的问题，并收集执行该方法的结果。
Simulink调试器允许开发人员设置断点，检查模拟执行并显示模型数据。它可以从图形用户界面（GUI）或MATLAB命令行运行。GUI呈现模型的执行状态的绝对颜色编码视图。随着模型的模拟，开发人员可以在块输入和输出，块状态和其他数据上显示数据，并在模型上立即对块方法执行动画。
Executing a Simulation
On one occasion developers have set the simulation alternatives for the model, developers can run the simulation synergistic, by employing the Simulink GUI, or consistently, by campaigning it in batch mode from the MATLAB command line. The accompanying simulation modes can be employed:
正常的即默认值，解释性模拟模型。
Accelerator, which accelerates model execution by producing compiled target code while still permitting developers to alter model parameters.
Rapid Accelerator, which can imitate models more libertine than Accelerator mode but with less synergistic by producing an executable distinguish from Simulink that can run on a second litigating core
Developers can in addition, employ MATLAB commands to charge and process parameters, visualize results and model data.
分析模拟
Model profiling can assist developers distinguish performance constrictions in the simulations. Developers can gather performance data while simulating the model and then bring forth a simulation profile study based on the gathered data that demonstrates how much time Simulink takes to execute each simulation method.
Analyzing Results
Simulink®包括用于检查系统，测试，可视化结果，记录和验证模型的各自的工具。
Visualizing Results
开发人员可以通过考虑示波器的信号并显示在Simulink软件中的显示信号来可视化系统。作为替代性开发人员，可以使用GUI开发工具和MATLAB可视化建立自己的自定义演示文稿。开发人员还可以，此外，木材信号用于后处理。
Testing and Validating The Models
Simulink comprises tools to assists developers bring forth test conditions and corroborate the performance of the model. It constitute blocks for producing simulation tests. For illustration, the Signal Builder block permits developers to diagrammatically produce wave shape to exercise models. Employing the Signal & Scope Manager, developers can interpose signals into the model, as well as view and log signals, without adding up blocks. Simulink in addition, renders model substantiation blocks to ascertain that block outputs adjust to the design necessities.
Documenting The Model
It is comfortable to add software documentation to the Simulink model. A comment or instruction, comprising hyperlinks to Web pages and other documents, can be added up directly in the diagram. Elaborated description can be added up to each propertiesof te block as well as model properties, such as model history data. The DocBlock permits developers establish a text file document as a block inside the model. Simulink in addition, extends printing capabilities that permit developers well document the model. With a command, developers can produce a HTML document that delineates the intact model, comprising shots of the various levels of power structure and all the block stipulations.
运用仿真软件清单工具开发人员can produce a report naming the files that the model calls for function and to boot constrict those files for apportioning with other developers. Employing Simulink® Report GeneratorTM软件开发人员可以生成定制的报告s that follow particular document criteria, as well as share interactional interpretations of the models visible in a Web browser.
Generating C/C++ and HDL Code
可以组装在Simulink中构建的模型并为代码生成准备。采用嵌入式编码器TMand Simulink CoderTM和产品，开发人员可以从模型中提出C/C ++代码，以进行快速原型，嵌入式系统部署和实时仿真。采用Simulink®HDL编码器TMproduct, developers can bring forth, target independent Verilog and VHDL code, synthesizable as well as test benches for code validation in external HDL simulators.
Simulink renders built-in support for testing, running models and prototyping on low-cost target hardware, comprising LEGO® MINDSTORMS® NXT, BeagleBoard and Arduino®. Developers utilize the Run on Target Hardware installer to choose and configure Simulink for the hardware and download a support package. After constructing a model, developers bring forth an executable application that runs and loads on the target hardware. Developers can make algorithms in Simulink for robotics, control systems, computer vision applications and audio processing and consider them execute with hardware.
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