Sls clm demo_new
Transcript of Sls clm demo_new
ALPHA BREATHING
Remember to breath, that is after all the life of all
EVOCATION AND INTRODUCTION
What do you infer from this picture ?
DESIGN OF LINEAR PHASE FIR FILTERS USING HAMMING AND
HANNING WINDOW TECHNIQUES
DESIGN STEPS
Design a linear phase high pass FIR filter using hamming window with a cutoff frequency of 0.8 π rad/sample and N=5.Link Sheet :Number of samples, N =5Centre of symmetry, α=(N-1)/2 = 2Ideal Frequency response of high pass filterFormula to find desired impulse response :
Formula to find finite impulse response : Hamming window function:
Formula to find Transfer Function:
deehnh njjdd
)(21)(
)().()( nwnhnh d
otherwise
NtonNnnwH
;0
10;1
2cos46.054.0)(
10;)()(1
0
NtonznhzHN
n
n
BRAIN ACTIVITY
Do the following actions
1 – clap once2 – clap twice3 – rise both hands4 – clap without sound
Do the following actions
1 – clap twice2 – clap without sound3 – rise both hands4 – clap once5 – do previous action
Activity 1:You have to draw 3 concentric circles with a line passing through their center without lifting hand.
Ans: Start the line complete one circle move inside circles along the line and then draw second circle. Like wise rest.
Activity 2 :
Can u make 120 with 5 zeros?
Answer : Factorial(factorial (0)+factorial(0)+factorial(0)+ factorial (0)+factorial (0)) = 120
Activity 3 :
You are given a cake; one of its corner is broken. How will u cut the rest intoTwo equal parts?
Ans: Slice the cake
Read the following Inverted words
solid mrofsnart
Read the inverted words
indebtedness should be prearranged for hardwork thesaurus
Solution:
Flow chart
Compute Inverse fourier transform to find hd(n)
Start
Multiply with window sequence w(n) to make it to finite impulse response for the
desired case.
Determine the transfer function H(z) by taking z transform
Stop
Problem to be solved by the students:Design a linear phase low pass FIR filter using hamming window with a cutoff frequency of 0.5π rad/sample and N=7.Link Sheet :Number of samples, N =7Centre of symmetry, α=(N-1)/2 = 3Ideal Frequency response of low pass filterFormula to find desired impulse response :
Formula to find finite impulse response : Hamming window function:
Formula to find Transfer Function:
deehnh njjdd
)(21)(
)().()( nwnhnh d
otherwise
NtonNnnwH
;0
10;1
2cos46.054.0)(
10;)()(1
0
NtonznhzHN
n
n
Rote Memory 1.Filter 2.Frequency 3.Number of samples 4.Response 5.Cutoff 6.impulse 7.window 8.hamming 9.linear phase 10.structure