ECE 333 Communication Systems, Fall 1997

9/2	Handout course information sheet.
	Haykin: Sections 2.1-2.12 reviews concepts from ECE 330.  We focus on
	Fourier series and Fourier transforms,

9/4	Properties of Fourier transforms, Bandwidth, Hilbert transforms.
	Distributed handout on Hilbert transforms.
	Copies are also available outside my office.
	Assigned HW Ch 2: 1, 2, 4, 10, 13, 17 DUE Thur. 9/11.

9/9	Finished Hilbert transforms.

9/11	Sections 3.4 on DSB-SC.
	Assigned HW Ch 2: 21, 22, 28, 29 DUE Thur. 9/18.
	In Problem 21 you may need partial fractions, odd/even functions
	in the time-domain calculations.

9/16	Section 3.1 on conventional AM (DSB-LC).
	Assigned HW Ch 3: 7, 8, 9, 11, 25 DUE Thur. 9/25.

9/18	Sections 3.8 and 3.7 on SSB and VSB.
	Assigned HW Ch 3: 19, 21 DUE Thur. 9/25.

9/23	Sections 3.2 and 3.4: Power-law modulation, chopper and rectifier
	modulators.  Balanced modulator.  Quadrature multiplexing.
	Section 3.9: Frequency division multiplexing, specifications for
	Telephone and radio.  Assigned HW Ch 3: 14 DUE Thur. 10/2.

9/25	Handout on in-phase and quadrature components and their
	application to a unified treatment of DSB, SSB, and VSB.
	Section 3.14: Superheterodyne AM receivers.
	Assigned HW problem on blackboard and Ch 3: 29(Typo: first \beta_3
	should be \alpha_3.  Also, don't solve for the angles, just the
	conditions they need to satisfy), 30 DUE Thur. 10/2.

9/30	Sections 3.10 and 3.11: Angle modulation.  Definitions of maximum
	phase and frequency deviation.  Index of modulation.  Spectrum
	of s(t) due to pure sinusoidal modulation expressed in terms of
	Bessel functions of the first kind.  Narrowband angle modulator.
	Assigned HW Ch 3: 36(a)(b), 37(a), 39, 41 DUE Thur. 10/9.

10/2	Indirect method (Armstrong method) for obtaining wideband angle
	modulation using frequency multipliers and frequency converters.
	Demodulation of FM using a differentiator.  Indirect demodulation
	using a PLL.  Discussion of FM stereo systems.
	Assigned HW Ch 3: 44 DUE Thur. 10/9.

10/7	Discussion of black and white TV.
	Chapter 4: Introduction to probability.  Model for randomness.
	Random variables.  Distributions, probability mass functions,
	probability densities

10/9	Expectation, variance.  Examples: Bernoulli, binomial, Poisson,
	geometric, uniform, exponential, Gaussian (normal).
	Random processes, correlation function, wide-sense stationarity.

10/14	Random processes through LTI systems.  Power spectral density.
	Wiener-Khinchin Theorem.
	Assigned HW Handout DUE Thur. 10/23.

10/16	White noise, noise-equivalent bandwidth.  Bandpass processes.
	Old Exam 1 Handout.

10/21	Review for midterm exam

10/23	Midterm exam, in class

10/28	Reviewed midterm exam

10/30	Review of in-phase and quadrature noise components and their
	power spectral densities.  Chapter 5: Analysis of communication
	systems in the presence of noise; DSB-SC, SSB-SC.
	Assigned HW Handout DUE Thur. 11/6.

10/31	FRIDAY: Last day to drop courses for undergrads

11/4	NO CLASS TODAY !!!

11/5	NO Office Hours WEDNESDAY !!!

11/6	Noise in conventional AM systems.
	Assigned HW Ch 5: 6, 7 DUE Thur. 11/13.

11/11	Noise in FM systems.  Began discussion of pre-emphasis/de-emphasis.
	Assigned HW Ch 5: 12 DUE Thur. 11/20.

11/13	Finish pre-emphasis/de-emphasis.  Chapter 6: Sections 6.1 and 6.2
	Introduction to sampling, the sampling theorem.
	Assigned HW Ch 5: 16, 17 DUE Thur. 11/20.

11/18	Impulse sampling, natural sampling, Section 6.3: zero-order hold
	sampling (PAM), Section 6.4: time-division multiplexing.  Started
	Section 6.5: PPM.

11/20	TDM Example on board.  Section 6.5: Modulation and demodulation of
	PWM and PPM.  SNR analysis of PPM.
	Assigned HW Ch 6: 2, 3, 6, 7 DUE Thur. 12/4.

11/25	Handout re-capping SNR analysis of PPM, includes
	HW, Due Thur. 12/4, at end of handout.
	Copies are outside my office.  Introduction to pulse-code
	modulation (PCM), Sections 6.7-6.10.

11/27	No class - Thanksgiving Recess

12/2	Section 6.7 and 6.8: Quantization, companding.

12/4	The T1 Carrier System.  Worked out Problem 6.19 on regenerative
	repeaters.  Brief discussion of differential PCM and delta
	modulation.
	Assigned HW Ch 6: 11, 12, 14, 15, 20 DUE Thur. 12/11.

12/9	Showed overhead examples of uniform quantizers with and without
	companding.  Worked sample problems.

12/11	Reviewed dB, TDM.  Worked example problems.  Discussed partial contents
	of final exam.

12/14	SUNDAY Office Hours: 1-3pm.

12/15	MONDAY: Final Exam, 10:05 am in 2534, Engineering Hall