2 Apr
2002
2 Apr
'02
9:46 p.m.
about doppler-sonar...
On Tue, 2 Apr 2002, Sukandar Kartadinata wrote:
It does not contain positional information.
maybe you could get that by modulating the sinewave with a step function (steps bigger than your max. deviation) ? just thinking aloud...
I was rather thinking about transmitting small-band noise to combine motion-sensing with position-sensing.
my biggest problem with reflective US was always the amount of energy I got back from soft objects (like dancers or people in general...) which was never enough to make it work reliably for larger distances
Try calculating differences between successive echoes.
Though I haven't tried it yet.
Johannes