Line 1: Line 1:
 
[[Category:ECE301Spring2013JVK]] [[Category:ECE]] [[Category:ECE301]] [[Category:signalandsystems]] [[Category:problem solving]]
 
[[Category:ECE301Spring2013JVK]] [[Category:ECE]] [[Category:ECE301]] [[Category:signalandsystems]] [[Category:problem solving]]
 
[[Category:Impulse Response]]
 
[[Category:Impulse Response]]
'''1.Impulse response'''<\n>
+
'''1.Impulse response'''
  
 
Joseph Fourier first represented  Fourier integral theorem in the following DOE:
 
Joseph Fourier first represented  Fourier integral theorem in the following DOE:

Revision as of 11:33, 11 March 2013

1.Impulse response

Joseph Fourier first represented Fourier integral theorem in the following DOE:

DOE1.jpg[1]
Which is then introduced into the first delta function as following:

DOE2.jpg[1]
And the end end up with what mathematicians called Dirac delta function:

DOE3.jpg [1]
[1] “Dirac delta function. Internet: http://en.wikipedia.org/wiki/Dirac_delta_function, March. 8, 2013 [March. 10, 2013].
2.Fourier series

The input x(t) is a function with a fundamental period x(t)= 1 from x= 0 to 1 and f(x)= -1 to 0, with a discontinuity at x=0. The following graphs from matlab represents Gibbs phenomena, as n increases the overshot decreases.

N=25.jpg N=50.jpg N=100.jpg
3.Filters

The upper is the Gaussian filter, while bottom is the unsharp.

Figrelena.jpg
Back to the 2nd bonus point opportunity, ECE301 Spring 2013

Alumni Liaison

Ph.D. 2007, working on developing cool imaging technologies for digital cameras, camera phones, and video surveillance cameras.

Buyue Zhang