Harish Makaram wrote:
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i tried searching for "laser position system","laser navigation","target recognition using reflective target"

What you want to do is "triangulation" as you have stated in your first post. Looking for "laser triangulation" one of the links is http://lims.mech.northwestern.edu/projects/laser/

That is not exactly what you are doing, but comes (as far as I can tell) close enough to your problem, to be valuable.. Up to you to adapt it to your specific needs.



regards
Patrick