Commit Graph

137 Commits

Author SHA1 Message Date
Paul Riseborough a24bfc1b8a AP_NavEKF : Use synthetic sideslip fusion during GPS denied operation with airspeed 2014-03-14 06:07:57 +11:00
Paul Riseborough 35811758d7 AP_NavEKF : Update comments and remove un-used function declarations 2014-03-14 06:07:57 +11:00
Paul Riseborough 784034170d AP_NavEKF : increased useage of helper functions 2014-03-10 21:54:03 +11:00
Paul Riseborough 7b3130cfcc AP_NaVEKF : Enable operation without airspeed and compass 2014-03-10 21:53:09 +11:00
Paul Riseborough 3a5acb9cea AP_NavEKF : improved on-ground, in-air check and GPS yaw alignment 2014-03-10 14:07:34 +11:00
Paul Riseborough b47a11edf6 AP_NavEKF : improved static and on-ground mode selection logic 2014-03-10 04:39:59 +11:00
Paul Riseborough 15a44571c2 AP_NavEKF : enable operation without a compass for planes 2014-03-09 20:01:45 +11:00
Paul Riseborough 2019708056 AP_NavEKF : Make all compass use autodetect 2014-03-09 19:59:19 +11:00
Paul Riseborough e485b246e7 AP_NavEKF : update comments 2014-03-09 19:59:18 +11:00
Paul Riseborough c8bd415b00 AP_NavEKF : Add sideslip constraint to allow plane flight without magnetometer 2014-03-09 19:59:17 +11:00
Paul Riseborough 52fabc822f AP_NavEKF : Add low speed magnetometer calibration option 2014-03-09 19:59:16 +11:00
priseborough 6ace31b6c1 AP_NavEKF : Fix bug that leaves height unconstrained in static mode 2014-03-09 19:27:21 +11:00
Paul Riseborough 94ff7522fc AP_NavEKF : Fix bug in initial East mag field state variance 2014-03-08 07:44:34 +11:00
Andrew Tridgell 449d09051e AP_NavEKF: cope with compass going offline while in flight 2014-03-02 14:32:10 +11:00
Andrew Tridgell 77f91e6250 AP_NavEKF: don't assume the number of gyros == number of accels 2014-03-02 13:53:19 +11:00
Paul Riseborough ebb3cc3348 AP_NavEKF : Use average of dual IMU gyro data when available 2014-03-02 13:28:44 +11:00
Paul Riseborough a39d00fc13 AP_NavEKF : Fix bug that prevents Zacc bias state variance being updated 2014-03-02 13:27:22 +11:00
Paul Riseborough 573b3210dd AP_NavEKF : Add div0 protection to the IMU1_weighting calc 2014-03-02 08:10:06 +11:00
Paul Riseborough bd152d332c AP_NavEKF : Add accel aliasing protection 2014-03-02 08:10:04 +11:00
Paul Riseborough 854f013146 AP_NavEKF : Fixes zero compass offsets on initialisation 2014-02-28 19:43:12 +11:00
Andrew Tridgell 736201689b AP_NavEKF: only use the active accel from DCM if fly_forward is set 2014-02-27 17:40:13 +11:00
Paul Riseborough 62eff63267 AP_NavEKF : Increase the tuning range for magnetometer measurement noise 2014-02-27 17:20:38 +11:00
Andrew Tridgell a9e683dada AP_NavEKF: use the accelerometer chosen by DCM for each step 2014-02-27 09:41:48 +11:00
Paul Riseborough 78a1cac560 AP_NavEKF : Improved heading and magnetic field state initialisation 2014-02-27 08:12:10 +11:00
Paul Riseborough d83b382e59 AP_NavEKF : Fix variance constraint bug
Constraining variances to a minimum value of 1e-9 was causing problems
with gyro bias and angular accuracy in noisy GPS environments.
Because the constraint is applied after every covariance prediction
and correction, a lower value of 0 is more appropriate.
2014-02-27 08:12:03 +11:00
Paul Riseborough 72a91ccbca AP_NavEKF : Prevents aliasing triggering innovation consistency check failures 2014-02-25 15:55:44 +11:00
Paul Riseborough 5db9a87d31 AP_NavEKF : fixed bug in velocity rate of change filter
This bug meant the velocity rate of change used to scale the GPS measurement variances was noisy and too small
2014-02-23 19:50:37 +11:00
Paul Riseborough 01c84c3f47 AP_NavEKF : fixed bug in height limit range 2014-02-23 19:50:36 +11:00
Paul Riseborough 36d619ec3a AP_NavEKF : Changed default IMU bias process noise to use smallest value 2014-02-23 19:50:36 +11:00
Paul Riseborough 89e0b48320 AP_NavEKF : Bug fix for height drift due to timer wrap-around 2014-02-23 19:50:35 +11:00
Paul Riseborough 939a32a7bb AP_NavEKF : Improved stability of Z accel bias 2014-02-23 19:50:34 +11:00
Andrew Tridgell 4e56196655 AP_NavEKF: allow states to be accessed using names as well as a Vector22 2014-02-21 20:24:47 +11:00
Andrew Tridgell 20b0444c15 AP_NavEKF: remove sleep on init of EKF
this prevents HIL from locking up, and also prevents a possible 1s
delay in flight on EKF init
2014-02-19 22:04:12 +11:00
Andrew Tridgell c9d0c1face AP_NavEKF: use ahrs->get_armed() for static mode demanded 2014-02-19 10:52:57 +11:00
Andrew Tridgell 536160a3fb AP_NavEKF: use AHRS get_correct_centrifugal() 2014-02-19 10:28:45 +11:00
Andrew Tridgell 869e41fd03 AP_NavEKF: fixed detection of airspeed sensor
the get_airspeed() AHRS call can change as the user enables/disables
the airspeed sensor, plus it only gets enabled after the NavEKF
constructor runs.
2014-02-19 09:22:45 +11:00
Paul Riseborough 1ade39977a AP_NavEKF : covariance prediction cleanup 2014-02-19 09:22:45 +11:00
Paul Riseborough 8daca145d0 AP_NavEKF : useAirspeed set automatically 2014-02-19 09:22:45 +11:00
Paul Riseborough 6fbada26d3 AP_NavEKF : Improvements to staticMode robustness 2014-02-19 09:22:45 +11:00
Paul Riseborough 7a82746fcc AP_NavEKF : fixed bug in pos and vel reset when in static mode 2014-02-16 22:35:19 +11:00
Paul Riseborough 275ef86f86 AP_NavEKF : Position and Velocity reset bugfix 2014-02-16 21:05:37 +11:00
Paul Riseborough b22dc706b2 AP_NavEKF : staticMode bugfix and robustness improvements 2014-02-16 21:04:55 +11:00
Paul Riseborough 2926602718 AP_NavEKF : Cleaned up InitialiseFilterDynamic 2014-02-16 21:04:51 +11:00
Paul Riseborough 404fbafe26 AP_NavEKF : Changed timout behaviour to only reset PosVel states 2014-02-16 21:04:46 +11:00
Andrew Tridgell 24e1070eb2 AP_NavEKF: initialise quaternion from rotation matrix 2014-02-15 12:21:11 +11:00
Andrew Tridgell c6b24c521b AP_NavEKF: force healthy false when initialising
this prevents us feeding off our own values when booting

Pair-Programmed-With: Paul Riseborough <p_riseborough@live.com.au>
2014-02-15 09:25:40 +11:00
Andrew Tridgell a7a44a9a5c AP_NavEKF: fixed init order warning 2014-02-15 05:48:24 +11:00
Paul Riseborough b56c8211c9 AP_NavEKF: Reduced number of Mavlink tuneable parameters 2014-02-15 05:48:23 +11:00
Paul Riseborough deb64c4cbd AP_NavEKF: Pos Vel reset after long GPS timeout 2014-02-15 05:48:23 +11:00
Paul Riseborough 7ac0172db1 AP_NavEKF: removed repeated intialisation 2014-02-15 05:48:23 +11:00