Baher: Analog&Digital signal processing is a pretty understandable book (depending on math background ofcourse)
Matlab has a utility called 'fdatool' which lets you design and visualize filters very easily. There might be an open-sour equivalent somewhere. I would agree with the delay concern expressed earlier. If you get too much delay the negative feedback ends up being positive and you get ringing. If anyone finds a topology or filter class that is particularly suitable for putting inside PID loops I would be interested. AW > On Tue, 6 Nov 2007, Mario. wrote: > >> not want do only do 'some' filtering, ideally we want exact >> counterfilter for our aches. And we need someone with good math skills >> to show us precisely how. > > Or at least some basic DSP book :P I'm buying something for work (I have to > filter out mechanical resonance from a load cell -- I know, it's a different > thing), but I've seen somewhere a book on 'practical DSP' which could be > useful :D > > At the moment I began to hate the Z-trasform (the discrete equivalent of the > Laplace one...) > > At the end most of the DSP stuff is done evaluating polynomials... now I get > WHY they always talk of multiply-and-accumulate! ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
