ECE6580 Lecture 12

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ECE6580 Lecture 12
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Biquad Sections
Section1
Section2
Section3
X(n)
y(n)

• Second order sections
• tf2sos
• Ordering of poles and zeros.
• What is the best way to implement?

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Topologies

• Direct Form I
• Direct Form II

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Efficient?
y1biquad(x,coefs1,states1) y2biquad(y1,coefs1,s
tates1) ybiquad(y2,coefs1,states1)
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More Efficient
ybiquad(x,coefs,states,sections)
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Stack Coefs and States
States
Coefs