CDS 101/110 - Transfer Functions: Difference between revisions

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{{cds101-fa06}}
{{cds101-fa08 lecture|prev=Output Feedback|next=Loop Analysis}}


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== Overview ==
== Overview ==


'''Monday:'''  Transfer Functions ({{cds101 handouts|L6-1_xferfcns_h.pdf|Slides}}, MP3)
The learning objectives for this week are:
* Students should be able to construct a transfer function from a state space system
* Students should be able to sketch the frequency response corresponding to a transfer function and label its key features
* Students should understand the concepts of poles and zeros, and their relationship with the eigenvalues of a state space system
 
'''Monday:'''  Transfer Functions ({{cds101 handouts|L6-1_xferfcns.pdf|Slides}}, {{cds101 mp3 |cds101-2008-11-03.mp3|MP3}})


This lecture introduces transfer functions as a tool for analyzing feedback systems using frequency response and Bode plots. The lecture uses the example of a spring, mass, damper system to show how transfer functions can be used to compute the frequency response of an interconnected system of components. We also define poles and zeros and indicate how they affect the frequency response of a system. Finally, we introduce the general computations of block diagram algebra.
This lecture introduces transfer functions as a tool for analyzing feedback systems using frequency response and Bode plots. The lecture uses the example of a spring, mass, damper system to show how transfer functions can be used to compute the frequency response of an interconnected system of components. We also define poles and zeros and indicate how they affect the frequency response of a system. Finally, we introduce the general computations of block diagram algebra.


'''Wednesday:''' Laplace Transforms (Notes, MP3)
* {{cds101 handouts|L6-1_xferfcns_h.pdf|Lecture handout}}
 
* {{cds101 matlab|ambode.m}} - special version of bode command using powers of 10 for gain (instead of dB)
This lecture gives a brief introduction to the Laplace transfrom and describes how it relates to the transfer function for an input/output system.
 
'''Friday:''' Bode plots (Notes, MP3)


This lecture focuses on Bode plots, including how to recognize key features of the plots and how to sketch them by hand.
'''Wednesday:''' Bode Plots ({{cds101 handouts|L6-2_bode.pdf|Notes}}, {{cds101 mp3|cds101-2008-11-05.mp3|MP3}})


== Handouts ==
This lecture gives will discuss how to construct the frequency response corresponding to a transfer function (Bode plots).  We'll cover both the properties of the frequency response as a function of gain, poles and zeros, as well as how to sketch a bode plot for a given transfer function.


{| width=100%
'''Friday:''' recitation sections
|- valign=top
| width=33% | Monday
* {{cds101 handouts|L6-1_xferfcns_h.pdf|Lecture handout}}
* MATLAB code: {{cds101 matlab|L6_1_xferfcns.m}}
* {{cds101 handouts|hw5.pdf|Homework #5}}
| width=33% | Wednesday (CDS 110)
* Lecture notes
| width=33% | Friday
* Lecture notes
|}


== Reading ==
== Reading ==


* {{AM06|Chapter 8 -Transfer Functions}}
* {{AM08|Chapter 8 -Transfer Functions}}
** CDS 101: Read sections 8.1-8.4 [45 min]
** CDS 110: Read sections 8.1-8.5 [60 min]
** CDS 210: Review AM08 Ch 8, DFT Ch 2 [60 min]


== Homework ==
== Homework ==


This homework set covers basic transfer function concepts. The conceptual problems show how to create a frequency response for a complex system of components using MATLAB. The analytical problems cover basic anaytical concepts in transfer functions.
* {{cds101 handouts|hw5-fa08.pdf|Homework #5}} - due 10 Nov 07
 
** {{cds101 handouts|hw5-101-fa08.pdf|CDS 101}}
<!-- Links to homework materials -->
** {{cds101 handouts|hw5-110-fa08.pdf|CDS 110}}
* {{cds101 handouts|hw5.pdf|Homework #5}}
** {{cds101 handouts|hw5-210-fa08.pdf|CDS 210}}


== FAQ ==
== FAQ ==
'''Monday'''
'''Monday'''
<ncl>CDS 101/110 FAQ - Lecture 6-1</ncl>
<ncl>CDS 101/110 FAQ - Lecture 6-1, Fall 2008</ncl>
'''Wednesday'''
'''Wednesday'''
<ncl>CDS 101/110 FAQ - Lecture 6-2</ncl>
<ncl>CDS 101/110 FAQ - Lecture 6-2, Fall 2008</ncl>
'''Friday'''
<ncl>CDS 101/110 FAQ - Lecture 6-3</ncl>
'''Homework'''
'''Homework'''
<ncl>CDS 101/110 FAQ - Homework 5</ncl>
<ncl>CDS 101/110 FAQ - Homework 5, Fall 2008</ncl>

Latest revision as of 05:58, 9 December 2008

CDS 101/110a ← Schedule → Recitations FAQ AM08 (errata)

Overview

The learning objectives for this week are:

  • Students should be able to construct a transfer function from a state space system
  • Students should be able to sketch the frequency response corresponding to a transfer function and label its key features
  • Students should understand the concepts of poles and zeros, and their relationship with the eigenvalues of a state space system

Monday: Transfer Functions (Slides, MP3)

This lecture introduces transfer functions as a tool for analyzing feedback systems using frequency response and Bode plots. The lecture uses the example of a spring, mass, damper system to show how transfer functions can be used to compute the frequency response of an interconnected system of components. We also define poles and zeros and indicate how they affect the frequency response of a system. Finally, we introduce the general computations of block diagram algebra.

Wednesday: Bode Plots (Notes, MP3)

This lecture gives will discuss how to construct the frequency response corresponding to a transfer function (Bode plots). We'll cover both the properties of the frequency response as a function of gain, poles and zeros, as well as how to sketch a bode plot for a given transfer function.

Friday: recitation sections

Reading

Homework

FAQ

Monday <ncl>CDS 101/110 FAQ - Lecture 6-1, Fall 2008</ncl> Wednesday <ncl>CDS 101/110 FAQ - Lecture 6-2, Fall 2008</ncl> Homework <ncl>CDS 101/110 FAQ - Homework 5, Fall 2008</ncl>

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