digital filter 2
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EXPERT SYSTEMS AND SOLUTIONS
Email: [email protected]@yahoo.com
Cell: 9952749533www.researchprojects.infoPAIYANOOR, OMR, CHENNAI
Call For Research Projects Final year students of B.E in EEE, ECE, EI,
M.E (Power Systems), M.E (AppliedElectronics), M.E (Power Electronics)
Ph.D Electrical and Electronics.Students can assemble their hardware in our
Research labs. Experts will be guiding the projects .
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Digital Filters
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Today
FIR repetition Frequency-sampling structures Cascade form realization Parallel form realization Lattice/ladder structure
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FIR filters
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Frequenc y- s amp ling structures
-1 -0.5 0 0.5 1
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
4
Real Part
I m a g
i n a r y
P a r t
E = 0, M = 4
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Th e po les
-1 -0 .5 0 0.5 1
-1
-0.5
0
0 .5
1
ea l
art
I
a g
i n a r y
a r t
i = 0
-1 -0 .5 0 0.5 1
-1
-0.5
0
0 .5
1
ea l
art
I
a g
i n a r y
a r t
i = 1
-1 -0.5 0 0.5 1
-1
-0.5
0
0 .5
1
ea l
art
I
a g
i n a r y
a r t
i = 2
-1 -0 .5 0 0.5 1
-1
-0.5
0
0 .5
1
ea l
art
I
a g
i n a r y
a r t
i = 3
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-1 -0 .5 0 0 .5 1
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
4
Real Part
I m a g
i n a r y
P a r t
E = 0.5
E = 0.5, M = 4
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D irect f o r m I re a liz a ti o n
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D irect f o r m II
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T r a ns po se d structures
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T r a ns po se d structures (2)
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C a sc ad e - f o r m structure
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S ingle st a ge l a ttice filter
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Two st a ge l a ttice FIR filter
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(M -1 )- st a ge l a ttice FIR filter
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L a ttice structure f o r a n a ll -po le IIR s y ste m
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L a ttice - l add er structure
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S u mma r y
FIR and IIR filters Direct-form realization of FIR filter Cascaded structure Frequency sampling structure Lattice structure