基于MATLAB的系統(tǒng)的時(shí)域響應(yīng)分析精選

摘 要

系統(tǒng)的時(shí)域響應(yīng)分析是衡量控制系統(tǒng)的重要指標(biāo)。所謂控制系統(tǒng)的時(shí)域響應(yīng)分析就是在時(shí)間域內(nèi)求解系統(tǒng)的微分方程，然后根據(jù)繪制出來(lái)的曲線分析系統(tǒng)的性能和各主要參數(shù)對(duì)系統(tǒng)性能的影響。不過(guò)這里的響應(yīng)曲線一般是指典型的響應(yīng)曲線，即所謂的階躍響應(yīng)和脈沖響應(yīng)。求解系統(tǒng)典型響應(yīng)的思路是首先列出微分方程組，對(duì)方程兩邊同時(shí)取拉普拉斯變換得到系統(tǒng)傳遞函數(shù)，然后根據(jù)繪制出來(lái)的圖形進(jìn)行系統(tǒng)分析。

利用MATLAB提供的系統(tǒng)時(shí)域響應(yīng)分析函數(shù)可以方便、快捷地觀察到系統(tǒng)的輸出是否滿足要求。經(jīng)過(guò)系統(tǒng)仿真后得出諸如系統(tǒng)傳遞函數(shù)等的上升時(shí)間、調(diào)節(jié)時(shí)間、超調(diào)量和穩(wěn)態(tài)誤差等參數(shù)。

此次綜合實(shí)踐所選的系統(tǒng)經(jīng)過(guò)MATLAB軟件進(jìn)行系統(tǒng)仿真后，得到系統(tǒng)的輸出函數(shù)，可以直觀的看到系統(tǒng)個(gè)狀態(tài)量變化情況。

關(guān)鍵詞：MATLAB軟件；系統(tǒng)時(shí)域響應(yīng)分析；系統(tǒng)的響應(yīng)曲線

Abstract

The system time domain response analysis is an important indicator to measure control system. The so-called control system is the time-domain response of the system in time domain for solving differential equations, and then draw out the performance curve analysis system and the main parameters on system performance. But here, generally refers to a typical response curve of the response curve, the so-called step response and pulse response. A typical response to the idea of solving the system is listed first differential equations, both sides of the equation at the same time taking the Laplace transform of the system transfer function, and then draw out a systematic analysis of the graphic.

MATLAB provides a system using time domain response analysis function can be quickly and easily observe whether the output of the system to meet the requirements. After the system obtained after simulation of the system transfer function, etc., such as rise time, adjusting time, overshoot and steady-state error and other parameters.

The practice of the selected system is an integrated MATLAB system simulation software, got the system output function, you can see visual changes in the amount of system-state.

Keywords: MATLAB software; the system time domain response analysis; system response curves

目 錄

摘 要I

AbstractII

第1章 緒論1

1.1 概述1

1.2 時(shí)域響應(yīng)分析1

1.2.1 系統(tǒng)響應(yīng)的輸入信號(hào)1

1.2.2 根據(jù)模型獲得響應(yīng)曲線1

1.3 本次綜合實(shí)踐2的意義2

第2章 MATLAB軟件簡(jiǎn)介3

2.1 MATLAB3

2.2 MATLAB概述3

2.2.1 MATLAB軟件3

2.2.2 Matlab的優(yōu)勢(shì)和特點(diǎn)3

第3章 系統(tǒng)的軟件設(shè)計(jì)思路6

3.1 典型信號(hào)的生成6

3.2 系統(tǒng)直流增益7

3.3 系統(tǒng)的固有頻率和阻尼系數(shù)7

3.4 系統(tǒng)零輸入響應(yīng)7

3.5 典型系統(tǒng)傳遞函數(shù)分析8

3.6 任意給定輸入的系統(tǒng)時(shí)域響應(yīng)

與50位技術(shù)專家面對(duì)面20年技術(shù)見(jiàn)證，附贈(zèng)技術(shù)全景圖

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