How can I round off the coefficients of sys2 polynomial(num/den)?
4 次查看(过去 30 天)
显示 更早的评论
num=[1 0 0];
den=[1 0 0 1];
sys=tf(num,den)
sysd=c2d(sys,0.3)
sys2=d2c(sysd)
2 个评论
Walter Roberson
2011-6-23
For background, see http://www.mathworks.com/matlabcentral/answers/10096-i-m-trying-to-convert-a-system-from-c2d-and-then-from-d2c-but-the-results-are-not-the-same-why-the
采纳的回答
Paulo Silva
2011-6-23
Hi sadel, I see another hard question :)
num=[1 0 0];
den=[1 0 0 1];
sys=tf(num,den);
sysd=c2d(sys,0.3);
sys2=d2c(sysd);
[num,den] = tfdata(sys2);
num=round(num{:});
den=round(den{:});
sys2simple=tf(num,den)
Be carefull, in your example this code works well enough but please read the documentation about the round function!!!!!
更多回答(0 个)
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Data Type Conversion 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!