Thanks Skogsgurra.. i understand what you explained..
Hmm.. i read from a journal related to Gramians.
Gramians for stable systems are classically defined as integrals over infinite time or frequency intervals. however, there is no realistic sensor or actuator can operate over an infinite...
hi, I was wondered that the meaning of " no realistic sensor or actuator can operate over an infinite frequency interval". is it meaning that there is no sensor or actuator can operate last forever(infinite frequency interval)?
Thanks.
