Eye opening. I've always thought I could run accelerometer alone to measure angle during flight or under vibration if I have some low pass filter. Thanks to your work now I know that's not possible. Trying to see how to add Kalman filter or Complementary filter now :) Thanks!
you are modelling the rotation as the acceleration minus the gyro rotation. Then applying kalman filter pos + vel + noise? or some type of extended kalman filer with control input. Help lol.
Modern solid state gyros have significant drift, therefore they can not give long term information about the vertical axis. On the other hand long average of accelerometer data can give acurate direction of the vertical axis.
did you try only gyro?, it sould be the same as gyro+acc, as you are only displaying rotation, if you need linear movement, then accelerometer should be necessary
Eye opening. I've always thought I could run accelerometer alone to measure angle during flight or under vibration if I have some low pass filter. Thanks to your work now I know that's not possible. Trying to see how to add Kalman filter or Complementary filter now :) Thanks!
tttuberc 1 year ago
cool!!!
can u send me the program for my nxt robot programm?
my email adress is:
sam at superkato dot de
thank you !
katographics 1 year ago
@krbosak you mean thrift*
NutsandGuts 1 year ago
you are modelling the rotation as the acceleration minus the gyro rotation. Then applying kalman filter pos + vel + noise? or some type of extended kalman filer with control input. Help lol.
ehrenk1 3 years ago
just like the new ipods
tylerwatt12 3 years ago
"long average of accelerometer data can give acurate direction of the vertical axis. "
still, not in the airplane, during coordinated turn. hence even kalman solution without 3D magnetometer will drift.
krbosak 3 years ago
Hi
Can u give me the equation you use for the kalman filter??
westmaster 3 years ago
Modern solid state gyros have significant drift, therefore they can not give long term information about the vertical axis. On the other hand long average of accelerometer data can give acurate direction of the vertical axis.
PetrFM 3 years ago
did you try only gyro?, it sould be the same as gyro+acc, as you are only displaying rotation, if you need linear movement, then accelerometer should be necessary
rodstartube 3 years ago
work and program by yourself, breedy pig
rodstartube 3 years ago