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807 Commits 514 Branches 136 Tags 234 MiB
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17 Commits

Author SHA1 Message Date
Paul Riseborough 233c4b49c5 matlab: Add derivation of observation Jacobians used by the terrain estimator 2017-06-20 16:01:30 +10:00
Paul Riseborough 9f61622044 Matlab: Improve efficiency of odometry derivation 2017-06-03 12:39:24 +10:00
Paul Riseborough a02a046f5e EKF: Clean up auto-code files for body frame velocity measurements 2017-03-06 09:01:46 +11:00
Paul Riseborough e569578cf9 EKF: add derivation for body frame velocity measurements 2017-03-04 15:32:10 +11:00
Paul Riseborough eff9af549f scripts: derive conversion from polar to cartesian wind state covariance 2016-08-11 15:26:21 +02:00
Paul Riseborough a4728bc748 EKF: derive auto-code for quaternion state covariance initialisation 2016-05-17 12:28:58 +10:00
Paul Riseborough 6ca8a36782 EKF: Add matlab derivation for calculation of rotation vector variance 2016-05-17 10:56:19 +10:00
Paul Riseborough 57d3036ee7 EKF: update derivation files 2016-05-05 21:23:03 +10:00
Paul Riseborough fe9f88a8b4 EKF: test new derivation 
Use direct attitude parameterisation
Discard scale factors
Add accel bias
 2016-05-05 21:23:03 +10:00
Paul Riseborough 6ecbefd7e4 EKF: add matlab script to test complementary filter gains 2016-04-30 11:05:03 +10:00
Paul Riseborough c6bd93ed40 EKF: Include all output files generated by derivation script 2016-04-05 22:23:37 +02:00
Paul Riseborough ac71ec5d37 EKF: Fix scaling error in covariance prediction derivation 
The covariance prediction derivation was using the noise 1-std value instead of the noise variance. This resulted in the values of IMU process noise required to tune not matching the observed covariance growth.
 2016-04-05 22:23:37 +02:00
Paul Riseborough e9ccfdd484 EKF: Update derivation scripts and outputs 
Work around limitation in Symbolic toolbox environment space by incrementally saving and clearing workspace
Remove vehicle vertical position from optical flow prediction equations (use range measurement instead) and regenerate auto-code
Remove legacy optical flow auto-code conversion method as it is not required now a work around for symbolic toolbox limitations has been developed
Fix out of date syntax
 2016-03-11 11:03:43 +11:00
Paul Riseborough ea29e39e5b EKF: Updated derivation of Jacobians for direct heading measurement 
Adds an alternative using a 312 Euler sequence.
 2016-03-01 15:21:36 +11:00
Paul Riseborough 70a3b91217 EKF: Update magnetometer fusion derivations 2016-02-20 20:09:15 +11:00
Paul Riseborough d8afca5e7a EKF derivations: Correct error in direct yaw and declination angle fusion 
The atan function is now being used correctly instead of the tan function. This fixes problems with large heading errors or declination values.
The simple heading fusion has been decoupled from the magnetic field measurements. This enables external yaw measurements to be used in the future.
 2016-02-16 11:08:30 +11:00
Paul Riseborough 06e9d73268 Add derivation script files for inertial nav EKF 2015-11-03 12:24:43 +11:00