How to find Transfer Function using Bode plot data points..?

11 次查看（过去 30 天）
Varun Chitransh
Varun Chitransh 2016-6-4
回答： Star Strider 2016-6-4
Hi, I have simulated a dc-dc converter in PSIM and found its bode plot using PSIM AC Sweep.I have saved bode plot data points (Frequency, Amplitude and Phase values)in a .txt file. Now I want to use MATLAB SYSTEM IDENTIFICATION TOOLBOX to get 's' domain transfer function expression of my dc-dc converter by using the frequency response (Bode Plot) data points? The data points .txt file is attached, please help me, how to proceed?

请先登录，再回答此问题。

回答（1 个）

Star Strider
Star Strider 2016-6-4
That does not appear to be possible. The functions that would do that in the System Identification Toolbox, iddata and tfest, require time-domain inputs. I have never attempted to do system identification on Bode plot data.

类别

在 Help Center 和 File Exchange 中查找有关 Linear Model Identification 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by