Re: [Discuss-gnuradio] Using a USRP as a PID feeback controller

[Marcus D. Leech]

Aviv Keshet wrote:
> It's been pointed out that I have committed the sin of using undefined jargon.
> For the record, PID stands for Proportional Integral Derivative.
>
> PID is a ubiquitous type of feedback controller, mostly thanks to being
> conceptually quite simple. The input is an error signal (or a measurement and
> setpoint signal) of some process under control. The PID controller applies 3
> types of feedback:
>
> P - proportional, in which the control output is proportional to the error
> signal.
> I - integral, in which the control output is proportion to the time-integral 
> of
> the error signal.
> D - derivative, in which the control output is proportional to the
> time-derivative of the error signal.
>
> These three terms are added together to produce the control output. By the 
> right
> selection ("tuning") of the 3 gain values, stable feedback control of a wide
> variety of processes is possible.
>
>
>   
We'll be using a couple of PID control systems for our big dish.

-- 
Marcus Leech
Principal Investigator, Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org