state feedback การใช้

As such, it is not uncommon for control engineers to prefer alternative methods, like full state feedback, also known as pole placement, in which there is a clearer relationship between controller parameters and controller behavior.
Not being reliant on slow channel-state feedback from the mobile ( i . e . user equipment ) means that open loop STTD is almost immune to Doppler shifts associated with high UE speeds and is the preferred method for this scenario.