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Unformatted text preview: Example: A simple IIR filter The left part is identical to an FIR filter with the b(k) weights. The right part is a similar structure but with the y(n) value being fed into the delay line and the a(k) values multiplying past values of y(n). y ( n ) = x ( n " k ) k = L " 1 # b ( k ) + y ( n " k ) k = 1 M " 1 # a ( k ) = b (0) x ( n ) + b (1) x ( n " 1) + b (2) x ( n " 2) + L + b ( L " 1) x ( n " L + 1) + a (1) y ( n " 1) + a (2) y ( n " 2) + L + a ( M " 1) y ( n " M + 1) 47 EE 200 Signal Flow Graphs Example: A simple IIR filter D + D b(0) b(1) b(2) b(L1) y(n) x(n) x(n1) x(n2) x(nL+1) + D + + + + D D D a(1) a(2) a(M1) y(n1) y(n2) y(nM+1)...
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This note was uploaded on 12/03/2008 for the course EE 200 taught by Professor Zadeh during the Fall '08 term at USC.
 Fall '08
 ZADEH

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