EE380 Communication Systems Spring 2010-2011
Midterm Examination II Solutions
Open Book, Open Notes; Calculators allowed but laptops not allowed Time Allowed = 4 hours (April 17, 2011 from 10:00am-2:00pm) "I certify that I have neither received nor given
EE380 Communication Systems Spring 2010-2011
Midterm Examination I (Solutions)
Open Book, Open Notes; Calculators and Laptops without Network connection allowed Time Allowed = 180 minutes (March 5, 2011 from 3:00pm-6:00pm) "I certify that I have neither r
EE380 Communication Systems Spring 2011-2012
Section 1 SET 1
Quiz Number 1
Closed Book; Closed Notes Time Given=10 minutes (Feb 7, 2012) "I certify that I have neither received nor given unpermitted aid on this examination and that I have reported all suc
EE380 Communication Systems Spring 2010-2011
Section 2 SET 1
Quiz Number 5 Solutions
Open Book; Open Notes Time Given=10 minutes (Apr 11, 2011) "I certify that I have neither received nor given unpermitted aid on this examination and that I have reported
EE380 Communication Systems Spring 2010-2011
Section-2
Time Given=5 minutes (March 7th, 2011)
Quiz Number 4
Find the Fourier Transform of:
()
()
(
)
(
)
We know the following Fourier Transform pairs: () ( ) () ( )
( )
(
)
Therefore the Fourier Transform
EE380 Communication Systems Spring 2010-2011
Section 1 SET 1
Quiz Number 4 Solutions
Closed Book; Closed Notes Time Given=5 minutes (Apr 28, 2011) "I certify that I have neither received nor given unpermitted aid on this examination and that I have report
EE380 Communication Systems Spring 2010-2011
Section 1 SET 1
Quiz Number 3 Solutions
Closed Book; Closed Notes Time Given=8 minutes (Apr 28, 2011) "I certify that I have neither received nor given unpermitted aid on this examination and that I have report
EE380: Section 2: Quiz 1 (5 minutes) Feb 02, 2011 (set 1) solutions
Student ID: Name: Signature:
Given: An analog music signal extends from 0 to 12kHz. The signal needs to be Sampled and Quantized for transmission as a binary digital signal. The sam
EE380: Section 1: Quiz 1 (8 minutes) Feb 03, 2011 (set 1)
Student ID: Name: Signature: Given: An analog signal is Sampled and Quantized. The sampling rate was 1000 samples per second. Each sample was encoded into 16 levels. Q1: How many bits are needed
EE380 Communication Systems Spring 2011-2012
Section 1 SET 1
Quiz Number 1 Solutions
Closed Book; Closed Notes Time Given=10 minutes (Feb 7, 2012) "I certify that I have neither received nor given unpermitted aid on this examination and that I have report
EE380: Communication Systems Spring 2010-2011
Quantization Error and Quantization Noise
(For a Uniform Quantizer) Consider a quantizer whose input signal is x(t) and the output is the quantized signal y(t). Then the quantization error q(t) = y(t) - x(t).