# optimization for velocity estimation

I like to ask a question for optimization. I do velocity measurement. But I can't measure the time interval between the two points for that velocity calculation actuately. There is an interval, for example between 0.2 sec and 0.5 sec, actual velocity happens. But the distance between the two points can be fixed. My questions are (1) how can I do estimation of the actual velocity? (2) Is there any optimization techniques for that problem? Thanks, Thomas

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See an identical question by the OP at theoreticalphysics.stackexchange.com/questions/1072 – Slaviks Mar 25 '12 at 14:45
Perhaps the question could be closed here, since it is posted on another SE site? – Martin Sleziak Jul 5 '12 at 17:12