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Images and Matrices
Images are generally represented using matrices.
A matrix element is called pixel.
Grayscale images: 0 (black)-255 (white)
thms 2015, 8
Color images: 3 matrices representing the amount of
Solutions for Homework #1
1) What are major functions of computer networks?
Convenient information sharing and communications
2) What are the major differences between wired and wireless networks?
Wired networks transmit data through w
Applications of Sherman-Morrison Formula and Positive
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Sherman-Morrison Formula (Matrix Inverse Lemma)
Assume A Rnn is invertible and x, y Rn .
Rank-1 perturbation B = A + xyT . What is the inverse of B?
ECEN 601: Mathematical Foundations for Signal Processing
Due date: Tuesday, November 22, 2016
Problem 1 (10pts): Determine the absolute error and the relative error in computing the
value of e10 using the approximation
ex = 1 + x +
ECEN 621-600: Mobile Wireless Networking, Spring 2009
A Course Targeting at State-of-The-Art Knowledge In Advanced Wireless
Communications and Networking Design & Analysis Techniques
INSTRUCTOR: Prof. Xi Zhang, 333N WERC,
ECEN 621 - HW#7: Please answer the following questions:
Due on Wednesday, Nov. 23, 2011, in class. (No late homework accepted)
Eq. (2.2.6) is given as follows:
d. Plot the received signal at the wireless channel output as a funct
ECEN 621 - HW#6: Please answer the following questions:
Due on Wednesday, Nov. 16, 2011, in class.
1). Give the detailed steps of convolution integral to derive the received
signal r_1(t) (Solution part b.) in page 8 of Slide_8.
2). Give the detailed step
ECEN 621 - HW#5: Please answer/solve the following questions:
Due on Monday, November 7, 2011, in class. (No late homework accepted)
What are the main causes for wireless channel disturbances/corruptions?
Define the scatterers in wire