# 线性化基础知识

## 函数

 `linearize` Linear approximation of Simulink model or subsystem `linearizeOptions` Set linearization options `getlinio` Obtain linear analysis points from Simulink model, Linear Analysis Plots block, or Model Verification block `linio` 为 Simulink 模型、Linear Analysis Plots 模块或 Model Verification 模块创建线性分析点 `setlinio` Save linear analysis points to Simulink model, Linear Analysis Plots block, or Model Verification block `linlft` Linearize model while removing contribution of specified blocks `linlftfold` Combine linearization results from specified blocks and model `fastRestartForLinearAnalysis` Fast restart for linear analysis

## 主题

### 快速入门

• 线性化非线性模型
获取非线性系统的线性逼近，该逼近在工作点周围的小区域内有效。
• 选择线性化工具
• Exact Linearization Algorithm
Simulink Control Design software linearizes models using a block-by-block approach. The software individually linearizes each block in a Simulink model and produces the linearization of the overall system by combining the individual block linearizations.
在由初始状态值和输入信号组成的工作点处线性化模型。
• Linearize Plant
You can linearize a block or subsystem in your Simulink model without defining separate analysis points for the block inputs and outputs. The specified block or subsystem is isolated from the rest of the model before linearization.
• Compute Open-Loop Response
You can analyze and compute the combined response of the plant and controller, excluding the effects of the feedback loop.
• Order States in Linearized Model
You can control the order of the states in a linearized model. This state order appears in linearization results.

### 具有特殊特性的模型

• Linearize Models with Delays
When linearizing a Simulink model with continuous-time delay blocks, you can either approximate the delays or represent the delays exactly.
• Linearize Multirate Models

You can linearize a Simulink model that contains blocks with different sample times.

• Linearize Models with Model References
To achieve an accurate block-by-block linearization of a model reference subsystem, first set it to run its simulation in normal mode.
• Linearize Simscape Networks
You can linearize models with Simscape™ components using Simulink Control Design software.
• Linearize Sparse Models
Obtain sparse linear systems from Simulink models that contain Sparse Second Order or Descriptor State-Space blocks.