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create a real sawtooth in simulink

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Andreas
Andreas 2012-7-12
many blocks in simulink like signal generator seem not to be able to create perfect signals.i use Signal Generator--->Scope. signal generated is sawtooth 10^7hz and amplitude=2.
http://www.mediafire.com/imageview.php?quickkey=a7l6ys2zvr65f33 http://www.mediafire.com/download.php?01t3tnbjn9b5g2h
so are there any means that I get a perfect ,normalized sawtooth between -1 and 1 values?
the step is 1e-9.
same almost applies to the sawtooth function of matlab which does not produce accurate waveforms!

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TAB
TAB 2012-7-12
You can create your own generator block using simulink block logic, stateflow, s-function or embedded matlab function.
See similar submission here.

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