The words “input” and “output” are not right here.
Yeah, that paragraph was sloppy and the previous sentence didn’t add much, so I deleted it and reworded the sentence you quoted. I’m used to flipping my perspective around a system, and thus ‘output’ and ‘input’ are more like ‘left’ and ‘right’ to me than invariant relationships like ‘clockwise’ and ‘counterclockwise’—with the result that I’ll sometimes be looking at something from the opposite direction of someone else. “Left! No, house left!”
(In this particular case, the system output and the controller input are the same thing, and the system input is the disturbance that the controller counteracts, and I assumed you didn’t have access to the controller’s other input, the reference.)
Yeah, that paragraph was sloppy and the previous sentence didn’t add much, so I deleted it and reworded the sentence you quoted. I’m used to flipping my perspective around a system, and thus ‘output’ and ‘input’ are more like ‘left’ and ‘right’ to me than invariant relationships like ‘clockwise’ and ‘counterclockwise’—with the result that I’ll sometimes be looking at something from the opposite direction of someone else. “Left! No, house left!”
(In this particular case, the system output and the controller input are the same thing, and the system input is the disturbance that the controller counteracts, and I assumed you didn’t have access to the controller’s other input, the reference.)