[thalur]

I don't know if it is the same thing that you are alluding to, but LIDAR can be used to measure distant wind speeds. I don't know if the output would be suitable for shooting, but it has been used in sailing.

https://en.wikipedia.org/wiki/LIDAR#Meteorology_and_atmosphe...

http://optics.org/article/34878

http://www.gizmag.com/catch-the-wind-racers-edge-laser-wind-...

[shpxnvz]

That's cool stuff. Seems like it could be useful if it could be miniaturized.

ETA: The binocluar device in the last link is pretty close, if they can extend the range from 300m and drop the price tag from $150K!