Mar 19, 2007 #1 T tronix Advanced Member level 4 Joined Jul 6, 2006 Messages 116 Helped 8 Reputation 16 Reaction score 1 Trophy points 1,298 Activity points 1,967 Hi all I needed to calculate Inverse Z of: H(z)=1/(1-2r*cosΦ*/z+r²/z²) I calculated the answer ro be : r^n*sin(n+1)Φ/sinΦ Whereas Answer given in a text is : r^n*cos(n+1)Φ/cosΦ I need the right the result to progress. Can someone confirm the right answer? Regards tronix
Hi all I needed to calculate Inverse Z of: H(z)=1/(1-2r*cosΦ*/z+r²/z²) I calculated the answer ro be : r^n*sin(n+1)Φ/sinΦ Whereas Answer given in a text is : r^n*cos(n+1)Φ/cosΦ I need the right the result to progress. Can someone confirm the right answer? Regards tronix
Mar 20, 2007 #2 M mondunno Advanced Member level 4 Joined Jan 11, 2007 Messages 119 Helped 15 Reputation 30 Reaction score 4 Trophy points 1,298 Activity points 1,907 Z transform problem which book u referred? ur answer is right ( r^n*sin[n+1]Φ/sinΦ )u[n+1] given roc to be |z|>r whats the roc mentioned in the book?
Z transform problem which book u referred? ur answer is right ( r^n*sin[n+1]Φ/sinΦ )u[n+1] given roc to be |z|>r whats the roc mentioned in the book?
Mar 21, 2007 #3 T tronix Advanced Member level 4 Joined Jul 6, 2006 Messages 116 Helped 8 Reputation 16 Reaction score 1 Trophy points 1,298 Activity points 1,967 Z transform problem Hey mondunno Yes I checked and found the result to be correct (there was an error in the text) Thanks a lot Regards tronix
Z transform problem Hey mondunno Yes I checked and found the result to be correct (there was an error in the text) Thanks a lot Regards tronix