Commit Graph

294 Commits

Author SHA1 Message Date
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
Andrew Tridgell 6e5077b60b AP_AHRS: removed unused AP_AHRS_HIL 2014-02-15 05:29:46 +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
Andrew Tridgell c7533579ac AP_AHRS: added get_airspeed() interface to AHRS 2014-02-15 05:28:07 +11:00
Randy Mackay 98d667c916 AHRS_HIL: call update_trig 2014-02-08 18:16:44 +09:00
Randy Mackay 6946d68318 AHRS_DCM: call update_trig 2014-02-08 18:16:42 +09:00
Randy Mackay 3dc6ea682c AHRS: add update_trig
Calculates helper trig values including cos_roll, cos_pitch
2014-02-08 18:16:39 +09:00
Paul Riseborough f2c2811ef3 AP_AHRS & AP_Math: fixed bug in use of AHRS_TRIM parameters 2014-01-19 07:19:43 +11:00
Andrew Tridgell a96840e194 AP_AHRS: changed default GPS lag to 1 sample
this is based on detailed logs from a LEA-6H and NEO-7N
2013-12-30 10:33:48 +11:00
Andrew Tridgell 410d356979 AP_AHRS: make airspeed_estimate const 2013-12-29 18:39:01 +11:00
Michael Day e5addf86c1 AP_AHRS: Added getters for compass and GPS. 2013-12-11 17:29:14 +11:00
Andrew Tridgell baa4ecc2ea APA_AHRS: update for compass API change 2013-12-09 17:34:07 +11:00
Andrew Tridgell b248cc0868 AP_AHRS: fixed a build warning 2013-11-23 21:44:56 +11:00
Andrew Tridgell 710d5119b5 AP_AHRS: added attitude_reset() method for HIL_SENSORS 2013-11-23 19:29:23 +11:00
Andrew Tridgell 6ed493b10f AP_AHRS: added attitude_reset() method for HIL_SENSORS 2013-11-23 18:50:56 +11:00
Andrew Tridgell 4f871c87f1 AP_AHRS: detect and try to cope with bad accels 2013-11-07 13:54:16 +11:00
Andrew Tridgell 56bcda7252 AP_AHRS: lower default roll and yaw drift correction speed
the gyros sustain accuracy over much longer time periods than
previously expected
2013-11-05 14:52:39 +11:00
Andrew Tridgell 02d6f012ce AP_AHRS: added accel sum delay buffer to account for GPS lag 2013-11-04 21:21:42 +11:00
Andrew Tridgell d31e557983 AP_AHRS: save memory and reduce pointer references
use a refence for ins, and don't save gyro and accel between updates
2013-11-04 21:21:37 +11:00
Andrew Tridgell cb52b6f367 AP_AHRS: removed limit on normalisation of accel reference vectors
this could lead to a bias in the accel drift correction
2013-11-04 21:20:41 +11:00
Andrew Tridgell 31eaaada62 AP_AHRS: removed vertical G limit on GPS velocity correction
this limit could lead to a bias in the accel drift correction, and is
frequenctly exceeded
2013-11-04 21:20:41 +11:00
Andrew Tridgell a7931b1581 AP_AHRS: fixed wrapping bug in GPS based heading error
this bug could cause the GPS based yaw to use an expensive reset far
too often
2013-11-04 21:20:41 +11:00
Andrew Tridgell 17b27a47de AP_AHRS: prevent GPS yaw resets on compass errors
when we switch from compass heading to GPS heading we don't want to
trigger a sudden GPS yaw reset
2013-11-04 21:20:41 +11:00
Andrew Tridgell d305dd5946 AP_AHRS: debounce the GPS/compass consistency test
we will only consider the compass inconsistent with GPS if it is off
for more than 2 seconds
2013-10-23 09:40:42 +11:00
Andrew Tridgell 8ee848a788 AP_AHRS: update for Stub -> HIL 2013-09-28 22:04:15 +10:00
Randy Mackay 8306d74da0 AHRS: remove DMP as an ahrs 2013-09-27 10:42:46 +09:00
Andrew Tridgell e1aa6e3ff1 libraries: fixed examples for no flash_leds() callback 2013-09-19 18:38:28 +10:00
Andrew Tridgell 15a4582ed7 AP_AHRS: changed to AP_Vehicle.h 2013-09-13 11:46:10 +10:00
Andrew Tridgell c044385fff AP_AHRS: added groundspeed() method
this gives ground speed in m/s from GPS
2013-09-09 18:04:41 +10:00
Andrew Tridgell c56017d8f1 AP_AHRS: added in new orientations 2013-08-30 14:19:17 +10:00
Andrew Tridgell 97b7130bb9 libraries: update license header to GPLv3
we switched to GPLv3 a long time ago, but neglected to update the
per-file license headers
2013-08-30 13:01:39 +10:00
Andrew Tridgell 6182571c21 AP_AHRS: fixed example build 2013-08-30 13:01:36 +10:00
Andrew Tridgell 587fb58720 AP_AHRS: fixed license text
APM is under GPL, not LGPL
2013-08-30 13:01:32 +10:00
Andrew Tridgell 57d2dd814d AP_AHRS: added get_position_lag() call
provide position lag to libraries
2013-08-13 12:07:35 +10:00
Andrew Tridgell 0d36832b82 AP_AHRS: use const reference not pointers for locations
this makes life easier for the new AP_Mission library

Pair-Programmed-With: Brandon Jones <brnjones@gmail.com>
2013-08-05 10:24:12 +10:00
Andrew Tridgell ec73fadc45 AP_AHRS: added true airspeed support in AHRS
use true airspeed for wind calculations, and allow other drivers to
ask for the current ratio
2013-07-22 12:50:01 +10:00
Randy Mackay 0325ad5d0d AP_AHRS: use rotateXY for speed
Saves 0.1ms at 100hz
2013-07-20 18:00:36 +09:00
Andrew Tridgell 1bd6849d00 AP_AHRS: fixed example build 2013-07-15 14:10:17 +10:00
Andrew Tridgell b721bcc129 AP_AHRS: removed get_roll_rate_earth() and get_pitch_rate_earth()
these are not used any more
2013-07-13 21:45:58 +10:00
Andrew Tridgell 086e8f80dc AP_AHRS: fixed spin rate gain conversion from degrees to radians
fixes issue #433

Thanks Jurgen!
2013-07-13 12:36:25 +10:00
Randy Mackay 7860d06b91 AHRS: typo fix for ORIENTATION param description 2013-07-10 14:56:48 +09:00
Andrew Tridgell 279f6d00f0 AP_AHRS: changes for GPS field changes 2013-07-10 14:04:22 +10:00
tobias 1bf135b36f AP_AHRS: make some more functions const 2013-07-08 12:07:50 +10:00
Randy Mackay ded31582de AP_AHRS: add Roll90Yaw90 to parameter description
Thanks to Rainer Walther for spotting this
2013-07-07 13:06:40 -10:00
Andrew Tridgell 80e0f8044c AP_AHRS: added airspeed_sensor_enabled() function 2013-07-04 16:56:57 +10:00
Andrew Tridgell 7d42a0562d AP_AHRS: cope better with large GPS yaw changes
this should cope better with bungee launches when using only GPS for
yaw.
2013-06-25 12:44:26 +10:00
Andrew Tridgell aaaa5247e3 AP_AHRS: make it possible to setup board orientation at runtime 2013-06-03 16:52:28 +10:00
Andrew Tridgell e75253d019 AP_AHRS: fixed indent-tabs-mode 2013-05-30 09:54:53 +10:00
Andrew Tridgell 14628990e6 AP_AHRS: make wind estimation configurable
rover doesn't want it
2013-05-24 11:21:42 +10:00
Randy Mackay b27ddf0f63 AP_AHRS: add parameter descriptions 2013-05-21 15:39:03 +09:00
Andrew Tridgell c08c084191 AP_AHRS: added get_projected_position()
this is used to project the position forward by the GPS lag
2013-05-17 08:32:21 +10:00
Andrew Tridgell a17b85c661 AP_AHRS: use vectors for ground vector complimentary filter 2013-05-13 11:27:55 +10:00
Andrew Tridgell 6f1cee6406 AP_AHRS: fixed position estimate with 2D fix or low satellite count
we should still use the GPS for position fixes when we have a low
number of satellites, but we should stop using it for velocity
estimates and attitude correction.
2013-05-07 10:52:14 +10:00
Randy Mackay ceda7d26b0 AHRS: add correct_centrifugal and flags structure 2013-05-06 15:32:06 +09:00
Andrew Tridgell 38fc0e61c6 AP_AHRS: optimise yaw drift correction
use new vector2 cross product, and factor out the z component of a dcm
mul_transpose() to reduce the number of floating point operations for
a yaw drift correction cycle
2013-05-05 13:51:45 +10:00
Randy Mackay ee2daf25b6 AHRS: perf improvement by caching declination vector 2013-05-05 12:58:43 +10:00
Andrew Tridgell 943a1d8c8d AP_AHRS: added AHRS_GPS_MINSATS option
if the number of visible satellites is below AHRS_GPS_MINSATS then
don't use the GPS for acceleration correction for attitude
2013-05-05 12:48:01 +10:00