Transfer function estimation with unknown number of poles and zeros
9 次查看(过去 30 天)
显示 更早的评论
I have an input and output signal registered in time-domain (discrete).
With
sys = tfest(data,np,Ts);
I can estimate the transfer function given the number of poles. But I don't know how many poles/zeros my transfer function should have to best fit the data.
Is there a way that MATLAB can estimate the best transfer function without these constraints?
Thank you very much.
0 个评论
采纳的回答
Arkadiy Turevskiy
2014-4-25
No, when using tfest you have to specify the number of poles and zeros.
If you are estimating state-space models, you can make use of the tool that helps you pick the order. See this example . You can then export identified state space model to MATLAB workspace and convert to a transfer function.
0 个评论
更多回答(0 个)
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Transfer Function Models 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!