ECE 3614: Introduction to Communication Systems [Summer-I, 2006]; Dr. Pushkin Kachroo;CRN: 60361; Credits: 3
Analysis and design of analog and digital communication systems based on Fourier analysis. Topics include linear systems and filtering, power and energy spectral density, basic analog modulation techniques, quantization of analog signals, line coding, pulse shaping, and transmitter and receiver design concepts. Applications include AM and FM radio, television, digital communications, and frequencydivision and time-division multiplexing. (3C, 3H). Prereq: ECE2704. Details
Taught by				Dr.. Pushkin Kachroo pushkin@vt.edu 231-2976
Listserve				ece3614_60361@listserv.vt.edu
Grading				Tests: 65%; Final: 30%; Attendance: 5% Guaranteed Grades: A- ( > 90%); B- ( > 80%); C- ( > 70%);
Lecture Room				Rand 211
Lecture Time				12:30 - 01:45PM (M, T, W, Th , F)
Office Hours				Location: 345Durham; 10:45AM to 12:30PM
Textbook					Modern Digital and Analog Communication Systems, third edition, by B. P. Lathi. Oxford University Press: New York, 1998, 781 pages.				Schaum's Outline of Analog and Digital Communications by Hwei P. Hsu
T.A.				Joshua K. Wang ; Email:jowang1@vt.edu
Schedule
Dates		Days	Topics			Textbooks
May 22		M	Signals & Systems			Ch1, Ch2, Ch3 (Lathi); Ch1 (Schaum)
		T	Signals, Fourier
		W	Spectral Density
		R	Systems, Bandwidth, S/N
		F				Test1		Test1 Solution
May 29		M	No Class			Memorial Day
		T	Amplitude Modulation			Ch4 (Lathi); Ch2 (Schaum)
		W	DSB, AM, SSB, VSB
		R	Superheterodyne, FDM
		F				Test2		Test2 Solution
June 5		M	Angle Modulation			Ch5 (Lathi); Ch3 (Schaum)
		T	Phase and Frequency Mod.
		W	Mod. Demod
		R	Bandwidth
		F				Test3		Test3 Solution
June 12		M	Sampling			Ch6,7 (Lathi); Ch4 (Schaum)
		T	Quantizing
		W	Encoding
		R	Transmission
		F				Test4		Test4 Solution
June 19		M	Probability/Random Var			Ch10(Lathi)Ch5(Schaum): Pb 1,2,3,7,8,10,12,13,16,17
		T	Distributions
		W	Random Processes			Ch11(Lathi)Ch6(Schaum)
		R	White Noise
		F				Test5		Test5 Solution
June 26		M
		T
		W
		R
		Sat	10:30A.M.-12:30P.M.			Comprehensive Final Exam

Major Measurable Learning Objectives:

Having successfully completed this course, the student will be able to:

a. Compute the Fourier transform and the energy/power spectral density of

communications signals.

b. Calculate the bandwidth and signal-to-noise ratio of a signal at the output of a

linear time-invariant system given the signal and the power spectral density of the

noise at the input of the system.

c. Explain the operation of amplitude and angle modulation systems in both the time

and frequency domains including plotting the magnitude spectra and computing

the power and bandwidth requirements of each type of signal.

d. Design a basic analog or digital communications system including: (1) the

selection of a digital or analog modulation format, (2) the block-diagram design

of a transmitter for the system, (3) the block-diagram design of a superheterodyne

receiver for the system, (4) the design of a time or frequency division

multiplexing scheme, as appropriate, and (5) the choice of an appropriate pulse

shape and analog to digital converter (if needed) to meet performance

requirements.

e. Evaluate a given analog or digital communications system in terms of the

complexity of the required transmitters and receivers and the power and

bandwidth requirements of the system.