Dec 15, 2009 #1 H hkchan Newbie level 1 Joined Dec 15, 2009 Messages 1 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,287 Sigma Delta Modulator What will be the block topologies for the noise shaping filter with transfer function: F[z] = (1.9715*z^4 - 6.0354*z^3 + 7.2881*z^2 - 4.0511*z + 0.8678 )/(z^5 + 4.9665*z^4 - 9.8997*z^3 + 9.8997*z^2 - 4.9665*z +1) I wish to implement it in Simulink using Sigma-delta toolbox but have no idea how to transform the given transfer function. Anyone can help?
Sigma Delta Modulator What will be the block topologies for the noise shaping filter with transfer function: F[z] = (1.9715*z^4 - 6.0354*z^3 + 7.2881*z^2 - 4.0511*z + 0.8678 )/(z^5 + 4.9665*z^4 - 9.8997*z^3 + 9.8997*z^2 - 4.9665*z +1) I wish to implement it in Simulink using Sigma-delta toolbox but have no idea how to transform the given transfer function. Anyone can help?
Dec 16, 2009 #2 H hobgoblin Junior Member level 1 Joined Feb 1, 2007 Messages 18 Helped 1 Reputation 2 Reaction score 0 Trophy points 1,281 Activity points 1,416 Re: Sigma Delta Modulator z=roots(b) p=roots(a) H=zpk(z,p,1) [cifb_a,cifb_g,cifb_b,cifb_c] = realizeNTF(H,'CIFB') b and a are filter numerator and denominator coefficients.
Re: Sigma Delta Modulator z=roots(b) p=roots(a) H=zpk(z,p,1) [cifb_a,cifb_g,cifb_b,cifb_c] = realizeNTF(H,'CIFB') b and a are filter numerator and denominator coefficients.