ES 442 (CES 540): Analog & Digital Communications
Instructor: Dr. Farid Farahmand
Spring 2015
Quick Links
Important Information
Lecture: Mon. & Wed. 5:306:45 pm, Salazar 2009A
Laboratory: Wed. 7:008:45 pm, Salazar 2005
Office Hours: click here
Office: Salazar 2010
Phone: (707) 6643491
Email: farid dot farahmand at sonoma dot edu
Course Description: Lecture 2 hours, Laboratory 3 hours. Mathematical modeling of signals, time and frequency domain concepts, spectral density, components of a communications system, analog signal transmission. AM, FM and PM modulation and demodulation techniques, noise and bandwidth, link analysis. Laboratory work.
Prerequisites:ES 230, and ES 400; or consent of instructor.
Course Textbook: Digital and Analog Communication Systems”, 7th Edition, L. Couch, Prentice Hall, 2007, ISBN13: 9780131424920.
Day  Lecture  Reading Material / Topics to Be Covered  Assignment/Activity Due 

1/21  Welcome / Syllabus  Read the syllabus carefully.  
1/26  Syllabus / Chapter 1 


1/28  Signup for ES 442 Download Piazza  Piazza app is available for smartphone / Bring a folder with your name on it! / Make sure you order the Textbooks / Submit Statement of Ethics / A Folder for all the assignments.  
2/2  Chapter 2 Part A  Topics: Time Average , Dc Value, Power, Instantaneous Power, Average Power, RMS, Normalized Power, Energy And Power Waveforms, Decibel, dBm And dB and dBW, Signaltonoise Ratio, Phasor Representation 

1/4  Chapter2_PartB  Topics: System definition, Fourier Series, introduction to Fourer Transform. Review of Linear Systems, Bandlimited Signals and Noise, Discrete Fourier Transform, Bandwidth of Signals; Linear & Nonlinear devices 

2/9  Chapter 2  Continued....  Quiz /Homework 1 C1&2 Signal Characterisitcs 
2/11  Chapter 2  Topics: Fourier Transfer, Examples & Properties  (See tutorials below) 

2/16  Topics: Fourier Transfer, Examples & Properties  (See tutorials below)  continued; Power Spectral Density; Autocorrelation, Orthogonal Functions.  Quiz  Homework 1B C2 Fourier Series.  
2/18  Chapter 2  
2/23  Chapter 2 Part 2  Topics: LTI System characterization, LTI transfer function, Distortionless, Group delay, Phase delay, DFT, FFT  Quiz /Homework 2 C2 Fourier Transform 
2/25  System Example: Filters & Transmission lines  Topics: Review of transmission lines, Tranfer function of diffentent cables.  Homework 3  C2  Filters  Nothing to submit. 
3/2  Chapter 5  AM Modulation  Bandpass Filtering and Linear Distortion, Bandpass Sampling Theorem, Received Signal Plus Noise, Classification of Filters and Amplifiers, Nonlinear Distortion, More on AM modulation!  
**3/4  Midterm Up  Midterm  Midterm 
3/9  AM Modualtions 


3/11  Chapter 5  AM Modulation  Some AM Problem Example  
3/1618  Spring Break  No Class  No Class 
3/23  Chapter 5  AM Modulation  
3/25  
3/31  See Notes  
4/1  Chapter 5  
4/6  Angle Modualtion 


4/8  
4/13  Angle Modualtion  Notes/Examples on Bessel Function  
4/15 


4/20  Chapter 4  Frequency Demodulators  Introduciton to Frequency Demodulators: Frequency Discriminators, Differentiators, First Order Linear PLL Models.  Quiz Homework 5  Frequency Demodulators 
4/22  
4/27  Frequency Demodulators PLL  Basic Operation (continued) 


4/29  Receivers (TFR and Superheterodyne)  
5/4  FM Transmitters and components  See details of Crosby FM Transmitter 
z  Quiz/ Homework 6  Multipliers and Modulators 
5/6  Devices and blocks  Final Project  ask your instructor for parts. Read the notes.  
**5/13  Final Exam / Submit class evaluation form  In order to be able to take the final exam you are required to bring a snapshot of your Moodle indicating that you have completed the class evaluations. 
Make sure you read lab rules!
Wk.  Lab  Reading Material  Assignment/Activity Due 

0  Syllabus / Lab Policies!  Labratory Report Template  Watch Matlab Tutorial Video  Read the Matlab Tutorial Manual / Submit the form / Check your boxes 
1  
2 


3  Lab0Matlab / Download this file  Understanding waveforms and their spectrum/Using matlab to plot signal spectrum  
4  Lab1 Basic Measurements  Understanding waveforms and their spectrum/Using scope and spectrum analyzer.  Lab0Matlab  is due. Must write all teh questions and answers. All parts must be clearly marked. All figures must have clear descriptions. 
5  Lab 2  BPF and LPF Analysis  Lab1 Basic Measurements  is due  
6  Lab2  BPF and LPF Analysis  is due  
7  
8  Lab 3  AM Modulation  
9  Spring Break  No Class  
10  Lab 4  AM Demodulator  
11  
12  Lab 5  FM Modulation  
13  
14  Lab 6  FM Demodulator 
Please refer to these links for more information on different topics.
Lecture Related  General 

Chapter 1(supplementary material): Chapter 2 (Fourier Transfer)


Simulink Tutorial  Balanced Demodulator  FM modulation   Secure Resources 