Commit Graph

254 Commits

Author SHA1 Message Date
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
Jonathan Challinger 61987f6655 AP_AHRS: Fixed DCM get_gyro function
Previously incorporated the attitude correction terms into the return. Now only returns the drift-corrected gyro.
2014-07-13 21:19:29 +10:00
Andrew Tridgell d70bee9249 AP_AHRS: fix for HAL_GPIO_* 2014-06-02 10:42:36 +10:00
Andrew Tridgell b3c1e515dc AP_AHRS: when no accel info available in buffer use current value
this prevents an initialisation error, and is reasonable in flight too

Pair-Programmed-With: Paul Riseborough <p_riseborough@live.com.au>
2014-05-15 22:19:54 +10:00
Andrew Tridgell 315290029a AP_AHRS: fixed check of accel sensor health
we need to check health of each accelerometer separately
2014-05-15 22:18:56 +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 c8c6e05a4a AP_AHRS: added vehicle class to AHRS
used by EKF to control use of get_fly_forward()
2014-04-21 18:13:12 +10:00
Andrew Tridgell 4d24a86088 AP_AHRS: prevent a infinity value 2014-04-21 15:37:07 +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 35c111a63a AP_AHRS: fixed example build 2014-04-01 06:38:25 +11:00
Andrew Tridgell f07e4dee52 AP_AHRS: convert to new GPS API 2014-04-01 06:38:24 +11:00
Andrew Tridgell afab8a9c5b AP_AHRS: fixed example build 2014-03-19 12:14:02 +09:00
Randy Mackay efd4058e8b AHRS: interate move of p1 from Location to mission cmd 2014-03-19 12:10:51 +09:00
Paul Riseborough 15a44571c2 AP_NavEKF : enable operation without a compass for planes 2014-03-09 20:01:45 +11:00
Andrew Tridgell aaaae9a222 AP_AHRS: added get_fly_forward() method
will be used to detect a copter
2014-02-27 17:39:49 +11:00
Andrew Tridgell 9a5ecc9541 AP_AHRS: use primary accel for accel_ef
Logs from Randy show that the copter INav code can't handle the
accelerometer sensor changing.
2014-02-27 16:28:37 +11:00
Andrew Tridgell b53496d470 AP_AHRS: choose the best accelerometer at each drift correction step
this greatly reduces the impact of aliasing on accelerometers by
choosing the accelerometer that produces the smallest error term in
DCM. The difference can be quite dramatic on the Pixhawk.
2014-02-27 09:41:28 +11:00
Andrew Tridgell 0b45d2bc06 AP_AHRS: removed the AHRS_GPS_DELAY parameter
the best value has turned out to be 1, and tweaking it has not turned
out to be useful, so this simplifies the code in preparation for
adding the anti-aliasing handling with multiple accelerometers
2014-02-27 08:57:44 +11:00
Andrew Tridgell 6fc5c12f1d AP_AHRS: remove unused variable 2014-02-26 10:28:12 +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 b434c11215 AP_AHRS: removed empty file 2014-02-19 22:00:25 +11:00
Andrew Tridgell 3b1f9a4bbf AP_AHRS: added get_armed() and set_armed() calls
will be used by NavEKF to determine static mode
2014-02-19 10:52:24 +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 ee37bc3d27 AP_AHRS: ensure we have HAL_CPU_CLASS available 2014-02-16 17:57:09 +11:00
Randy Mackay a021d0ca31 AHRS: fix compiler warning 2014-02-16 13:35:37 +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 eedd88c2ec AP_AHRS: give zero lat/lng and baro alt if no position yet in DCM 2014-02-15 09:25:40 +11:00
Randy Mackay 5bdc564191 AP_AHRS: fix example sketch 2014-02-15 06:09:08 +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
Andrew Tridgell c62ccce9d8 AP_AHRS: make estimate_wind() public
this avoids it linking into copter
2014-02-15 05:48:24 +11:00
Andrew Tridgell f09ae0c2d0 AP_AHRS: expose get_NavEKF as non-const
better than having two methods
2014-02-15 05:48:22 +11:00
Paul Riseborough 08267cea87 AP_AHRS: Scheduling for yaw gain to reduce atitude errors in turning flight 2014-02-15 05:48:22 +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 f068d0ff7e AP_AHRS_NavEKF: expose non-const EKF for tuning 2014-02-15 05:48:20 +11:00
Randy Mackay 9f130b40a0 AP_AHRS_NavEKF: override set_correct_centrifugal 2014-02-15 05:48:20 +11:00
Randy Mackay 8f6fd86f69 AP_AHRS: make set_correct_centrifugal virtual 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 a74fcc5a93 AP_AHRS: added set_ekf_use() 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 1e476e511a AP_AHRS: pass baro into AP_AHRS
first step in making AHRS handle altitude
2014-02-15 05:29:47 +11:00