Purdue University
School of Electrical and Computer Engineering
EE301 Signals and Systems
Spring 2024
Exam 2: March 22 thru Brightspace. Coverage: Chaps. 3-4, Hmwks 5,6,7. Most emphasis on Chap. 4 and Hmwks 6,7. Executive Summary: MY versions of Table 4.1 and 4.2: My Versions of Tables 4.1 and 4.2 ; VIP Handout on Sinc Function Products/Sums: Sinc Function Fourier Transforms ; Note on Linearity of Fourier Transform Linearity of Fourier Transform
A walk-through solution for Exam 1 has been recorded and posted at Brightspace under Content as "Lectures 17-18.
Class meets MWF 2:30-3:20 pm in Lawson B155.
Textbook Coverage Order: Chaps 1,2,3,4,7,5 + Chap 10.
Main TA: Arnav Singh. email: sing1272@purdue.edu
Arnav's office hours:
Wednesday, 17:30-19:30 BHEE 047 Tables 1, 2
Thursday, 16:00-18:00 BHEE 047 Table 3
Friday, 16:00-18:00. BHEE 047 Table 1, 2
Regular Class Time: MWF : 2:30-3:20 PM in LAWS B155.
INSTRUCTOR OFFICE HOURS: Prof Zoltowski in LWSN B134: Fridays
at 1:30 pm before class
INSTRUCTOR EMAIL: michael.zoltowski@gmail.com or
mikedz@purdue.edu
HOMEWORKS:
Homework 5 NOT turned in. See Hmwk 5 help in Chap. 3 section below
SCANNED-IN HMWK PROBLEMS FROM TEXT
TEXT SCANS PLUS SUPPLEMENTARY INSTRUCTOR NOTES:
Order that chapters will be covered: 1, 2, 3, 4, 7, 5, 10 (6, 8,
9 not covered).
CHAPTER 1: SIGNALS
The notes below will be covered on Jan.
8 and are helpful for Hmwk 1:
The notes below were covered on Jan.
10 and are helpful for Hmwk 1:
CHAPTER 1: SYSTEMS
The notes below were covered on Jan.
17 and are helpful for Hmwk 2:
The notes below were covered on Jan.
19 and are helpful for Hmwk 2:
CHAPTER 2: LTI SYSTEMS: IMPULSE RESPONSE AND CONVOLUTION
The notes below were covered on
Jan. 22 on CT convolution. (Sects. 2.2 and 2.3)
The notes below were covered on Jan.
24 on CT convolution. (Sects. 2.2 and 2.3)
The notes below were covered on Jan.
26 and are helpful for Homework 3 (Sect. 2.5):
The notes below will be covered on Jan.
29 on DT convolution (Sect. 2.1)
The notes below will be covered on Jan.
31 on DT convolution (Sect. 2.1)
The notes below will be covered on Feb.
2 and are helpful for Homework 4:
The notes below were covered on Feb.5
and are helpful for Exam 1:
The notes below were covered on Feb.7
and are helpful for Exam 1:
CHAPTER 3: FOURIER SERIES FOR PERIODIC SIGNALS
The notes below will be covered on Feb.9
covering key points of CT Fourier Series:
The notes below will be covered on Feb.
12 covering key points of DT Fourier Series:
CHAPTER 4: FOURIER TRANSFORM
The notes below will be covered on Feb.
21 on Basic Fourier Transform Theory.
The notes below will be covered on Feb. 23
on Basic Fourier Transform Theory.
The notes below on Fourier Transform Examples will be covered
on Feb.
26 and are helpful for Hmwk. 6.
The notes below on Fourier Transform Examples will be covered
on Feb. 28
The notes below on Fourier Transform Examples will be covered
on Mar.
1
Scan of Chapter 8 of O&W Textbook on Communication Theory:
O&W Textbook Chap. 8.
The FT notes below on Multiplying a Signal by a Sinewave and
Removing Negative Frequency Content to be covered on Mar.
4
The notes below will be covered on Mar. 6
VIP Handout for Exam 2 on Sinc Function Products: Sinc Function Products
Hmwk 7 Help: add'l FT Examples
Homework 7 Help
The notes below on Further Insights into the Fourier Transform
will be covered on Mar.
8 and are helpful for Exam 2.
Exam 2 Help: add'l FT Example: Text Prob 4.25 Text Prob. 4.25
Fourier Transform Tables where units for frequency variable is
Hertz: Fourier Transform
Tables
CHAPTER 7: SAMPLING THEORY
The notes below on Basic Sampling Theory will be covered on Mar.
25and use figures from the beginning of Chapter 7 in the
text.
The notes below on Sampling Theory
will be covered on Mar.
27
Sampling Theory Reprise: Ideal Reconstruction of Bandlimited Signal from its Samples Ideal Signal
Reconstruction
The notes below on Basic Sampling Theory will be covered on Mar.
29 related to Sampling Theory.
The notes below related to Sampling Theory will be covered on Apr.1
Discrete-Time Fourier Transform (DTFT)Basics DTFT Basics
Below is VIP information on the Benefits of Digital over Analog
in terms of Storage, Transmission, and Flexibility/Programmability
Digital Upsampling for Practical D/A Conversion Apr.
3
Matlab example of LDPC code: 1 bit per symbol ldpceg.m ; Matlab example of LDPC code: 2
bits per symbol ldpcQAMeg.m
Matlab example of Digital Upsampling and Zero-Order-Hold DAC ZOHeg2.m
CHAPTER 5: DISCRETE-TIME FOURIER TRANSFORM
The notes below on the Discrete-Time Fourier Transform (DTFT)
were covered on Apr.15
and also relate the DTFT to the CT Fourier Transform:
Discrete-Time Fourier Transform (DTFT)Basics DTFT Basics
The notes below related to the DTFT and helpful for Hmwk 9 will
be covered on Apr.15
Revised Table 5.1 of DT Fourier Transform Properties : Notation-Revised Table 5.1
Supplemental notes on Chap.5 related to frequency response of
LTI systems described by difference equations. Chap. 5 Supplement
CHAPTER 10: Z-TRANSFORM
The notes below related to the Z-Transform and will be covered
on Apr.
27-29
The notes below related to the Z-Transform and will be covered
on Apr.
29
Supplemental notes on All-Pass Filters. All-Pass Filters
Reference for CAT Scan Theory, and 2-D Fourier Transform: Section_6.4 ; Supplementary
Notes: Theory of CT Scans
Exam 1: Coverage: Chaps. 1-2, Hmwks 1-4. More emphasis on Chap.
2. Open-Book plus one 8.5 x11 crib sheet. Exam 1 Cover Sheet: Exam 1 Cover Sheet Executive
Summary: Executive Summary for
Exam 1 ;
OLD EXAM 1's:
Exam 1 from Spring 2016: Exam 1
; Exam 1 Soln: Exam 1 Soln ;
; Exam 1 Stats: Exam 1 Stats ;
Exam 1: Thurs., Feb. 25, in ME 1061 4:30-5:45 pm. Exam 1 ;; Condensed Exam 1
and Solution to Exam 1.
OLD EXAM 2's :
Exam 2 Coverage: Primarily Text Chapter 4, Homeworks 6-7. The
primary topic covered is the Fourier Transform, properties and
pairs. Only a single handwritten two-sided crib sheet is allowed
for this exam, in addition to the textbook (open book) No
calculators. A table of Fourier Transform properties will be
attached to the exam, with the j notation removed and some
additions (e.g. Duality property) relative to Table 4.1 in the
textbook.
OLD EXAM 3's:
Exam 3 Coverage: Primarily Text Chapters 7 and 5, Homeworks
8-9. Primary coverage topics: Sampling Theory and Discrete-Time
Fourier Transform, properties and pairs. Also, relationship
between DTFT and Fourier Transform when the DT signal was obtained
by sampling a CT (analog) signal. Also, frequency response of DT
LTI systems described by difference equations.
Exam 3 from Spring 2015: Solution:
Exam 3 Solution ; Exam 3 Statistics: Exam 3 Stats
OLD FINAL EXAMs:
Supplementary reading materials: