Andy Green wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Somebody in the thread at some point said: > | steve schrieb: > |> Amaybe when SD I/O occurs one could use the accelerometers to dead > reckon? > | > | Dead reckoning without gyros is pretty hard. In theory, the two > | accelerometers are not mounted in the same place and thus could be used > | to derive rotation, but in practice they're pretty close to each other, > | and given the noise of measurement one is unlikely to derive a good > | rotation from them. > > I don't think we need to worry about it, but in fact we wouldn't need to > dead-reckon. All we would need it for would be to put a ceiling on > claims from noisy GPS about what accelerations we could have > experienced. If the GPS sample says we jumped 100m in 1s, but the > accels didn't really see anything, we could ignore or meddle with the > GPS sample. Inertial navigation systems for the masses! Anyone here who wants to write a kalman filter?
Besides the point that a small pocket-IMU would be great. To GPS jumts that big exist? As fas as i understand GPS it should have little jitter. -- Drucken Sie diese Mail bitte nur auf Recyclingpapier aus. Please print this mail only on recycled paper. _______________________________________________ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community