multi input system identification

3 次查看（过去 30 天）

Shayan Goli 2020-3-2

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/508622-multi-input-system-identification

评论： Walter Roberson 2020-3-3

Hello

I have some data for a multi input and one output system. In different time period i apply different input to system and get output.

for exmple for 10 second input pressure is 1 and temperture is 300 and next 10 second pressure is 1.5 and temperature is 300.

I made these inputs as a vector and I tried idnlgrey command but this function use this vector as time series but in fact there is no relation between inputs and time.

what is right method to create inputs vector?

and how can I identify this system with multiple inputs?

note i'm using idnlgrey and pem command.

3 个评论
显示 1更早的评论隐藏 1更早的评论

Shayan Goli 2020-3-3

编辑：Shayan Goli 2020-3-3

let me explain more

I mean there is no relationship between input and time in the system formula.

There is no time-based parameter in the system formul.

in addition I applied different pressure in 10 seconds period but in fact you may apply different pressure evrey second so in both situation out should be same.

Were my explanations clear and sufficient?

Walter Roberson 2020-3-3

I am not certain, but I think you might be saying that for your purposes the system does not evolve in time? That even though obviously the system takes finite time to alter in response to a pressure change, that you are not concerned about that change process, and are only concerned about what it settles to in response to pressure changes?

请先登录，再进行评论。

请先登录，再回答此问题。