thanks for the responses so far.
bernhard: I'm not sure i followed your explanation, though what i gathered was your agreement that it was possible?
mgb_phys: in my half-baked plan, the source speed and direction would be fixed. I was imagining several boxes sitting at defined positions...
DISCLAIMER: i may very well have exactly zero idea what I'm talking about. please feel free to berate me if i am way off base...
so i know the doppler effect is normally used to determine an unknown radial velocity, but I'm assuming that if i know the velocity of the source, i can use the...