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36 Commits

Author SHA1 Message Date
priseborough d04a740bcb AP_AHRS : Add reset of EKF gyro bias states 2014-10-29 15:42:31 +09:00
Randy Mackay 95538d2992 AHRS: add reset_gyro_drift method 2014-10-29 15:42:20 +09:00
Andrew Tridgell ed30c0938e AP_AHRS: use a common function for updating the CD values 
this ensures the wrapping of yaw is consistent between the 3 use cases
 2014-10-15 11:28:30 +09:00
Andrew Tridgell f61ae9e9e5 AP_AHRS: restore DCM attitude before update() 
The DCM drift correction code uses the current attitude to calculate
error values to update its gyro drift correction. If we were using EKF
then without this patch the DCM code running as an alternative AHRS
source would be using the EKF attitude for calculating the error
value, leading to very bad gyro drift estimation
 2014-10-15 11:28:25 +09:00
Randy Mackay 29c704fecc AHRS: rename ekfNotStarted method to initialised 
Also created default implementation in AP_AHRS class so AP_AHRS_DCM does
not need to implement it.
 2014-10-02 15:02:52 +09:00
priseborough b51d01f979 AP_AHRS : add method to report if EKF is waiting to start 2014-10-02 15:02:50 +09:00
priseborough 62339c217c AP_AHRS : Prevent EKF starting if GPS sats less than AHRS_GPS_MINSATS 2014-09-23 20:39:48 +09:00
Andrew Tridgell 62d526a50d AP_AHRS: use EKF use_compass() if EKF enabled 
this allows magfailed status to show on console via SYS_STATUS health
bits
 2014-08-26 11:23:10 +09:00
Andrew Tridgell 28fedba4d8 AP_AHRS: fixed gyro_bias sign, and pre-calculate gyro_estimate for EKF 
this allows us to return a constant vector for the corrected gyro
estimate. Based on discussions with Jon Challinger
 2014-07-13 21:56:39 +10:00
Jonathan Challinger 966d66ef40 AP_AHRS_NavEKF: use gyro drift states from EKF in get_gyro 2014-07-13 21:34:44 +10:00
Andrew Tridgell 1a05c27bbb AP_AHRS: added healthy() function 
this will be used to report when the AHRS subsystem becomes unhealthy
 2014-05-15 21:14:21 +10:00
Andrew Tridgell b7350118a6 AP_AHRS: enable EKF wind estimate with no airspeed sensor 
EKF can now estimate with IMU and GPS only

Pair-Programmed-With: Paul Riseborough <p_riseborough@live.com.au>
 2014-04-13 19:42:49 +10:00
Andrew Tridgell 27a3b5fb36 AP_AHRS: fixed wind reporting with EKF and no airspeed sensor 
the EKF does not estimate wind without an airspeed sensor
 2014-04-10 06:49:23 +10:00
Andrew Tridgell f07e4dee52 AP_AHRS: convert to new GPS API 2014-04-01 06:38:24 +11:00
Paul Riseborough 15a44571c2 AP_NavEKF : enable operation without a compass for planes 2014-03-09 20:01:45 +11:00
Jonathan Challinger f321a5f241 AP_AHRS: Change airspeed_estimate to const in children of AP_AHRS 
Allows roll/pitch controllers to use DCM's airspeed estimate. Thanks to Kevin Hester for assistance in finding this.
 2014-02-25 18:49:16 +11:00
Paul Riseborough 9f3c19c03a AP_AHRS : change initialisation requirements for EKF and use dynamic method 2014-02-23 19:50:34 +11:00
Andrew Tridgell fad0b2b233 AP_AHRS: added get_correct_centrifugal() 
used by NavEKF to force static mode
 2014-02-19 10:28:14 +11:00
Andrew Tridgell be33a9634e AP_AHRS: move using_EKF to .cpp to make it easier in gdb 2014-02-15 09:25:40 +11:00
Andrew Tridgell 801ceacaf2 AP_AHRS: re-run update_trig() after EKF AHRS update 2014-02-15 05:48:24 +11:00
Andrew Tridgell 25ef0d5a7b AP_AHRS: don't allow get_velocity_NED() and get_relative_position_NED() without EKF 
this avoids some linking issues, plus the functions are inaccurate
without EKF
 2014-02-15 05:48:24 +11:00
Paul Riseborough b4171853b1 AP_NavEKF: allow initialisation before GPS lock to aid indoor testing 2014-02-15 05:48:21 +11:00
Paul Riseborough 0599817aa9 AP_AHRS : EKF initialisation changed to use bootstrap method 2014-02-15 05:48:21 +11:00
Randy Mackay 9f130b40a0 AP_AHRS_NavEKF: override set_correct_centrifugal 2014-02-15 05:48:20 +11:00
Paul Riseborough a87df0ad56 AP_AHRS : set NavEKF staticMode using call to set_correct_centrigual 2014-02-15 05:48:20 +11:00
Paul Riseborough ab08a5c7d6 AP_AHRS : altered NavEKF set home to reset position instead of reset filter 2014-02-15 05:48:18 +11:00
Andrew Tridgell 574946f0aa AP_AHRS: start EKF 5 seconds after getting GPS lock 2014-02-15 05:48:17 +11:00
Andrew Tridgell df271fbd59 AP_AHRS: fill in _dcm_matrix whenever EKF started 
this ensures get_dcm_matrix() always returns valid data
 2014-02-15 05:48:17 +11:00
Andrew Tridgell ada7d4fb98 AP_AHRS: use the right DCM matrix when EKF not enabled 2014-02-15 05:48:17 +11:00
Andrew Tridgell 5d43a1d704 AP_AHRS: added inertial nav interfaces to AHRS 2014-02-15 05:48:16 +11:00
Andrew Tridgell 392995ef84 AP_AHRS: make AHRS handle altitude 
AHRS now holds the home position
 2014-02-15 05:29:47 +11:00
Andrew Tridgell 84c7b0d7fd AP_AHRS: check for NavEKF health 2014-02-15 05:29:46 +11:00
Andrew Tridgell b39a5062e9 AP_AHRS: use NavEKF for ground vector when available 2014-02-15 05:29:45 +11:00
Andrew Tridgell b6bc50051f AP_AHRS: allow reporting of secondary AHRS solution 2014-02-15 05:29:45 +11:00
Andrew Tridgell 8c5cde4efd AP_AHRS: allow NavEKF to be enabled at runtime with AHRS_EKF_USE=1 2014-02-15 05:28:10 +11:00
Andrew Tridgell 7ac78ff991 AP_AHRS: create AP_AHRS_NavEKF class 
subclass of AP_AHRS_DCM, just a wrapper for now, will add EKF calls
next
 2014-02-15 05:28:09 +11:00