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306 Commits

Author SHA1 Message Date
Peter Barker e15442355a AP_AHRS: use GPS singleton 2017-12-27 00:58:02 +00:00
khancyr d89d496c8f AP_AHRS: make getter const 2017-12-18 22:43:59 +00:00
Peter Barker 8a4ab685c7 AP_AHRS: implement get_hgt_ctrl_limit on base class 
If no limits are required false can be returned, so an trivial
implementation is possible
 2017-12-08 11:27:37 +09:00
Randy Mackay 82cd320bd0 AP_AHRS: add get_origin method to parent 2017-12-01 09:28:56 +09:00
Dr.-Ing. Amilcar Do Carmo Lucas 0ecb14361d AP_AHRS: NFC spell in comments 2017-11-27 23:13:34 +09:00
Andrew Tridgell 770f697cfc AP_AHRS: added set/get for flying state 
this allows the vehicle code to set the likely flying state, which can
be used by EKF to trigger changes which should only happen when flying
(such as mag alignment)
 2017-06-20 09:44:44 +10:00
Randy Mackay 0af9433c8e AP_AHRS: add set_origin 2017-04-22 10:37:31 +09:00
Eugene Shamaev 5c080ce875 AP_AHRS: calculation and reporting of AOA and SSA 2017-04-19 20:48:42 +10:00
Andrew Tridgell 5758532326 AP_AHRS: make AHRS2 quaternion available 2017-04-16 14:01:36 +10:00
Andrew Tridgell a11dca5229 AP_AHRS: added optional skip_ins_update to AHRS::update() 
avoid the ins update if already done in copter fast_loop()
 2017-04-03 13:04:11 +09:00
Randy Mackay d3aca5544e AP_AHRS: get_gyro_latest returns latest rates from IMU with drift correction 
Pulling the gyro values from the IMU allows our rate controllers to run before the EKF
 2017-03-03 13:14:28 +11:00
Peter Barker 24647fb2b0 AP_AHRS: make get_relative_position_D_home pure virtual 
Having a void function with a return parameter that isn't
filled in by the base class function seems like a bad idea
 2017-02-24 21:13:08 +11:00
Jacob Walser 8c87868b5c AP_AHRS: Add submarine vehicle class 2017-02-21 11:26:14 +11:00
Andrew Tridgell c62c64d27b AP_AHRS: added support for AP_AHRS_View 2017-02-18 17:26:43 +11:00
Michael du Breuil 3274f1dbb1 AP_AHRS: Split all NED methods into a collection of NED relative to home vs origin 2017-02-13 09:23:14 +11:00
priseborough b4961971e0 AP_AHRS: add beacon object to ahrs 2016-11-30 17:56:42 +09:00
Randy Mackay c615bac1cd AP_AHRS: add getLastPosDownReset accessor 2016-11-24 19:57:53 +09:00
murata c808ee2f49 Global: To nullptr from NULL. 
RC_Channel: To nullptr from NULL.

AC_Fence: To nullptr from NULL.

AC_Avoidance: To nullptr from NULL.

AC_PrecLand: To nullptr from NULL.

DataFlash: To nullptr from NULL.

SITL: To nullptr from NULL.

GCS_MAVLink: To nullptr from NULL.

DataFlash: To nullptr from NULL.

AP_Compass: To nullptr from NULL.

Global: To nullptr from NULL.

Global: To nullptr from NULL.
 2016-11-02 16:04:47 -02:00
Mathieu OTHACEHE 152edf7189 Global: remove mode line from headers 
Using a global .dir-locals.el file is a better alternative than
reincluding the same emacs header in every file of the project.
 2016-10-24 09:42:01 -02:00
Jonathan Challinger 25a14fe0dc AP_AHRS: add interface to retrieve corrected delta velocities in NED frame 2016-10-14 10:45:58 +09:00
Jonathan Challinger e20687fbce AP_AHRS: cache trim rotation 2016-10-13 10:02:14 +11:00
Jonathan Challinger a03fa2d3cf AP_AHRS: use exact matrix for trim rotations 2016-10-13 10:02:13 +11:00
floaledm 27e977289a AP_AHRS: add the get_variances method found in AP_AHRS_NavEKF to AP_AHRS 2016-09-27 09:20:32 -07:00
Andrew Tridgell 334db0a1a5 AP_AHRS: added get_primary_accel_index() and get_primary_gyro_index() 2016-09-05 12:56:36 +10:00
priseborough 5454f76702 AP_AHRS: Add separate interfaces for local horizontal and vertical position 2016-07-19 12:16:49 +10:00
Andrew Tridgell a6cbc5d4a5 AP_AHRS: use EKF for groundspeed estimate if available 2016-05-31 15:56:25 +10:00
Andrew Tridgell 795080742e AP_AHRS: added have_ekf_logging() API 2016-05-07 18:27:19 +10:00
Lucas De Marchi e0153faa85 AP_AHRS: replace header guard with pragma once 2016-03-16 18:40:40 +11:00
Jonathan Challinger cbf2309023 AP_AHRS: add get_mag_field_NED and get_mag_field_correction 2016-01-23 10:35:36 +09:00
Andrew Tridgell f8b52c6a67 AP_AHRS: try to start EKF2 slightly before EKF2 
this gives priority to EKF2 on memory
 2016-01-07 08:34:32 +11:00
Jonathan Challinger 6682b27456 AP_AHRS: rename get_dcm_matrix to get_rotation_body_to_ned 2015-12-18 18:08:37 +11:00
Julien BERAUD 924a94633d AP_AHRS: Fix build 
Due to interdependancy between optical flow and AHRS, it is not possible
to include full class definition which rely on each other
 2015-12-18 17:56:06 +11:00
Lucas De Marchi 124937ab61 AP_AHRS: remove checks for HAL_BOARD_APM2 and HAL_BOARD_APM1 2015-11-04 12:14:11 +11:00
Randy Mackay 4e959ef6f9 AP_AHRS: constify getLastPosNorthEastReset 
Also constify getLastVelNortEastReset
 2015-10-30 12:24:13 +09:00
Randy Mackay 7c20577ee0 AP_AHRS: constify getLastYawResetAngle 2015-10-30 12:24:10 +09:00
Paul Riseborough f67f6b01f4 AP_AHRS: Publish the EKF position and velocity reset deltas 2015-10-30 12:24:05 +09:00
Caio Marcelo de Oliveira Filho f7c73fbb13 AP_AHRS: remove AHRS_EKF_USE_ALWAYS define 
This option now is passed when instantiating the code in ArduCopter, so
selecting the default value at compile time is not necessary anymore.

The motivation is to move vehicle specifc code out of the general
libraries. This patch shouldn't change behavior.
 2015-10-21 11:01:11 +11:00
Caio Marcelo de Oliveira Filho e87db31149 AP_AHRS: remove unused define 
AHRS_EKF_USE_DEFAULT is not used since commit
7ba45444a2 "AP_AHRS: added selection of
EKF type using AHRS_EKF_TYPE".
 2015-10-21 11:01:10 +11:00
Randy Mackay 9f59b6f7b5 AP_AHRS: getLastYawResetAngle returns reset time 2015-09-24 16:57:41 +09:00
Andrew Tridgell dde8330077 AP_AHRS: rename using_EKF to active_EKF_type() 
thanks to Randy for the suggestion
 2015-09-23 17:53:44 +10:00
Andrew Tridgell f9348887c5 AP_AHRS: added getLastYawResetAngle() and resetHeightDatum() 2015-09-23 17:46:51 +10:00
Andrew Tridgell 0677c2c80c AP_AHRS: run astyle for formatting 2015-09-23 17:31:00 +10:00
Andrew Tridgell 7ba45444a2 AP_AHRS: added selection of EKF type using AHRS_EKF_TYPE 2015-09-23 11:57:18 +10:00
Andrew Tridgell c18c6d894e AP_AHRS: added prearm_failure_reason() 2015-09-08 15:50:22 +10:00
Lucas De Marchi b43bddc0af AP_AHRS: standardize inclusion of libaries headers 
Do the missing header changes due to changing the code before the pr
getting accepted.
 2015-08-18 17:12:51 +10:00
Gustavo Jose de Sousa 54d5277842 AP_AHRS: standardize inclusion of libaries headers 
This commit changes the way libraries headers are included in source files:

 - If the header is in the same directory the source belongs to, so the
 notation '#include ""' is used with the path relative to the directory
 containing the source.

 - If the header is outside the directory containing the source, then we use
 the notation '#include <>' with the path relative to libraries folder.

Some of the advantages of such approach:

 - Only one search path for libraries headers.

 - OSs like Windows may have a better lookup time.
 2015-08-11 16:28:42 +10:00
Andrew Tridgell b61f7fa2f6 AP_AHRS: enable EKF by default on plane 
now we have arming checks enabled by default I think this is the best
choice
 2015-05-23 17:17:44 +10:00
Andrew Tridgell 7a76f72bf5 AP_AHRS: added uptime_ms() interface 2015-05-20 15:22:14 +10:00
Paul Riseborough c2ac80cc63 AP_AHRS: Prevent copter from switching to DCM unless EKF has severe errors 2015-05-13 16:11:13 +09:00
Andrew Tridgell 6bfca648b9 AP_AHRS: raise DCM P gains when disarmed for first 20 seconds 2015-04-28 14:07:39 +10:00
Randy Mackay c6f71ea2e0 AHRS: make get_error_rp and get_error_yaw const 2015-04-21 22:42:17 +09:00
Randy Mackay 98efcd5f03 AHRS: always use EKF for copter 2015-03-19 15:15:51 +09:00
Jonathan Challinger f92c711d14 AP_AHRS: define AP_AHRS_TYPE to be the type of AHRS in use 2015-03-16 09:14:03 +11:00
Jonathan Challinger 180c85817d AP_AHRS: remove armed state, use hal.util soft_armed state 2015-02-11 20:25:11 +11:00
Andrew Tridgell 68f64fa11c AP_AHRS: make the healthy() method const 2015-02-01 14:13:52 +11:00
Andrew Tridgell ed0a56cc3c AP_AHRS: cope with the changed semantics of airspeed.use() 2015-01-20 11:27:58 +11:00
Andrew Tridgell b499cd1b59 AP_AHRS: fixed examples build 
using a relative include works as the object is just passed through,
not used, in this header
 2015-01-05 07:04:27 +11:00
Andrew Tridgell 70c2aeca42 AP_AHRS: make optflow available via AHRS 
same pattern as compass and airspeed sensor
 2015-01-03 14:16:34 +11:00
Jonathan Challinger 033ee3c900 AP_AHRS: Add get_accel_ef_blended function 2014-12-05 19:40:04 +09:00
Randy Mackay 9e731550fd AHRS: default EKF on for copter 2014-12-01 17:29:39 +09:00
Randy Mackay dffcfb42bc AHRS: add reset_gyro_drift method 2014-10-28 20:25:33 +09:00
Randy Mackay 39c8535223 AHRS_DCM: sanity check AHRS_RP_P and AHRS_YAW_P 2014-10-21 21:41:41 +09:00
Andrew Tridgell 270bac4472 AP_AHRS: make get_position() const 
This allows use from within AP_Mission
 2014-10-20 08:36:20 +11:00
Andrew Tridgell 4ad643b233 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 13:18:08 +11:00
Andrew Tridgell 809b6cc855 AP_AHRS: added get_yaw_rate_earth() 
used to estimate course correction on takeoff
 2014-10-07 07:17:46 +11:00
Randy Mackay 85eee31510 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 14:40:54 +09:00
priseborough 7cea7c6a18 AP_AHRS : add method to report if EKF is waiting to start 2014-10-02 14:38:29 +09:00
Randy Mackay d23b685023 AP_AHRS: add empty virtual destructor 2014-07-16 14:56:54 +09:00
Randy Mackay 1f2e38ed28 AHRS: initalise members to reduce compiler warnings 2014-07-16 14:38:26 +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
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 f07e4dee52 AP_AHRS: convert to new GPS API 2014-04-01 06:38:24 +11:00
Randy Mackay efd4058e8b AHRS: interate move of p1 from Location to mission cmd 2014-03-19 12:10:51 +09:00
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 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
Randy Mackay a021d0ca31 AHRS: fix compiler warning 2014-02-16 13:35:37 +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
Randy Mackay 8f6fd86f69 AP_AHRS: make set_correct_centrifugal virtual 2014-02-15 05:48:20 +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 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 3dc6ea682c AHRS: add update_trig 
Calculates helper trig values including cos_roll, cos_pitch
 2014-02-08 18:16:39 +09:00
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 6ed493b10f AP_AHRS: added attitude_reset() method for HIL_SENSORS 2013-11-23 18:50:56 +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 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
Randy Mackay 8306d74da0 AHRS: remove DMP as an ahrs 2013-09-27 10:42:46 +09:00
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 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 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
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 80e0f8044c AP_AHRS: added airspeed_sensor_enabled() function 2013-07-04 16:56:57 +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 14628990e6 AP_AHRS: make wind estimation configurable 
rover doesn't want it
 2013-05-24 11:21:42 +10:00
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
Randy Mackay ceda7d26b0 AHRS: add correct_centrifugal and flags structure 2013-05-06 15:32:06 +09:00
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
Andrew Tridgell 014c9376e7 AP_AHRS: use const references where possible 2013-04-22 13:26:49 +10:00
Andrew Tridgell 7ad293e270 AP_AHRS: made a few methods const 2013-04-20 13:52:36 +10:00
Andrew Tridgell a4d25f5a82 AHRS: removed AHRS_BARO_USE option 
this option has caused users too much trouble. The vertical velocity
is too noisy from the baro
 2013-04-15 10:52:31 +10:00
priseborough b63d0969b7 AP_AHRS: Addition of a first order complementary filter to AP_AHRS::groundspeed_vector 
Addition of a complementary filter to estimation of the ground velocity vector for use by the L1-nav
 2013-04-12 12:48:09 +10:00
Andrew Tridgell ee81b0f729 AP_AHRS: added wind_correct_bearing() and groundspeed_vector() 
these are very useful for navigation libraries
 2013-04-12 12:48:08 +10:00
Andrew Tridgell 896fd52aa1 AP_AHRS: fixed functions that need to be virtual 
functions overridden in a child class need to be marked virtual, or
you get the parent class function
 2013-03-29 18:35:10 +11:00
Andrew Tridgell 8459da202c AP_AHRS: prevents compass flyaways for plane and rover 
this switches to the GPS for yaw if the compass has dragged us off by
more than 45 degrees from the GPS heading, and the wind speed is less
than 80% of the ground speed.
 2013-03-29 13:48:25 +11:00
Randy Mackay 24044dc0c4 AHRS: add support for GPS fix type 2D 2013-03-27 11:41:43 +09:00
Randy Mackay 3321db8dde AHRS: limit trim to 10 degrees 2013-02-19 18:50:57 +09:00
Andrew Tridgell 6119201307 AP_AHRS: ensure compass is non-NULL for set_board_orientation() 2013-01-17 17:23:34 +11:00
Andrew Tridgell 848fc3e32d AP_AHRS: added AHRS_ORIENTATION parameter 2013-01-13 17:32:48 +11:00
Andrew Tridgell 3ac3aeb1b1 AHRS: fixed build on ARM 2013-01-02 14:45:09 +11:00
Andrew Tridgell 583845cc17 ahrs fixup 2013-01-02 14:45:08 +11:00
Andrew Tridgell 1b0670e67c AHRS: fixup for ARM compiler 2013-01-02 14:45:08 +11:00
rmackay9 bd0e018ca0 ArduCopter: restore auto-trim method but now use AHRS.add_trim 2013-01-02 09:20:08 +11:00
rmackay9 1f7614929f AP_AHRS: save trim to eeprom when set_trim is called 2013-01-02 09:12:17 +11:00
rmackay9 1c08f176ea AP_AHRS: add get_accel_ef method to return earth frame accelerometer values for use in ArduCopter's inertial nav and accel based throttle 2013-01-02 09:11:25 +11:00
Andrew Tridgell 5c148153ac AP_AHRS: updates for new AP_Param API 2012-12-20 14:51:38 +11:00
Pat Hickey 9bf69d4e0d AP_AHRS: port to AP_HAL 2012-12-20 14:51:29 +11:00
Pat Hickey 3f1d9d7f69 AP_Param: #include <AP_Param.h> fixups for libraries & sketches 
* I mostly went through with grep and added an #include <AP_Param.h> below
  every #include <AP_Common.h>. Not all of these example sketches might
  strictly need AP_Param.
 2012-12-20 14:51:19 +11:00
rmackay9 83ae8e47be AP_AHRS: replace IMU with INS and add roll and pitch trim 2012-11-07 19:20:32 +09:00
rmackay9 8c6fd340d7 AP_AHRS: added scheduler parameter to init 
Required by the AP_AHRS_MPU6000 class which needs to disable timed processes that could interfere with it's communication with the mpu6000
 2012-09-29 13:51:21 +09:00
Andrew Tridgell fba1692d69 AHRS: added AHRS_BARO_USE parameter 
allow disabling of the use of the barometer for vertical acceleration
compensation
 2012-09-12 14:42:04 +10:00
Andrew Tridgell de28cc8b28 AHRS: added AHRS_WIND_MAX option 
this allows APM to cope better with airspeed sensor failure, but
ensuring airspeed stays within AHRS_WIND_MAX of ground speed
 2012-09-08 11:37:07 +10:00
Andrew Tridgell 2be785899b AHRS: added airspeed_estimate() function 
this allows the APM code to use an airspeed estimate for navigation
 2012-08-25 17:49:26 +10:00
Andrew Tridgell 8b53f1272a AHRS: new functions to support APM_Control library 2012-08-22 12:42:37 +10:00
uncrustify af588679b9 uncrustify libraries/AP_AHRS/AP_AHRS.h 2012-08-21 19:19:51 -07:00
Andrew Tridgell 6d28b3519f AHRS: removed AP_AHRS_Quaternion 
this AHRS backend is causing compiler errors with the Arduino build
environment on windows. The quaternion AHRS backend is currently not
being developed/supported anyway. We can resurrect it if someone wants
to start developing it again.
 2012-08-22 10:41:31 +10:00
Andrew Tridgell 134cd51d17 AHRS: moved var_info[] into top level AP_AHRS class 2012-08-21 15:58:09 +10:00
Andrew Tridgell ac72db8f00 AHRS: added set_fast_gains() method 
this will be used by arducopter on the ground
 2012-08-21 15:38:06 +10:00
Andrew Tridgell 9b4b7997b6 AHRS: added ahrs.yaw_initialised() 
this allows the high level code to know if the AHRS driver has a
reliable yaw estimate
 2012-08-15 12:39:34 +10:00
Andrew Tridgell 48e275e22d AHRS: avoid a compiler bug in quaternion code 
Having _wind in the AP_AHRS class causes a register allocation error
when building the Quaternion code with some versions of avr-gcc. Quite
bizarre.
 2012-08-13 11:08:10 +10:00
Andrew Tridgell 779dacfd24 AHRS: added wind estimation code 
this allows us to estimate the wind while we have GPS lock, then use
that estimate in the long term dead reckoning
 2012-08-11 22:06:03 +10:00
Andrew Tridgell af4071894e AHRS: added long-term dead-reckoning 
this uses airspeed (if available) or last GPS ground speed to update
our position estimate in AHRS
 2012-08-11 12:00:31 +10:00
Andrew Tridgell f95b06a880 AHRS: make airspeed sensor available to AHRS 
this will be used for long term dead-reckoning
 2012-08-11 08:57:32 +10:00
rmackay9 b844bb7919 AP_AHRS: removed var_info from AP_AHRS class (moved to AP_AHRS_DCM) 2012-07-28 14:16:56 +09:00
Andrew Tridgell 58c4d458dc AHRS: re-instate new DCM drift correction code 
This reverts commit 078489638d47fbaffde7c51249e36b5a8fc4ef9d.
 2012-06-28 11:09:22 +10:00
Andrew Tridgell fd241692d0 AHRS: revert to the old drift correction algorithm 
we need to work out why Craigs quad flipped today before we enable
this new drift correction
 2012-06-27 18:16:41 +10:00
Andrew Tridgell 3a41ad8e7c AHRS: normalize the ge vector in drift correction, and use barometer 
The normalisation ensures the error term scales uniformly with
different accelerations.

The barometer is used for vertical acceleration estimation
 2012-06-27 16:01:50 +10:00
Andrew Tridgell 0f5c22bd8e AHRS: implement Bills new drift correction algorithm 
this is an initial implementation of this paper:

  http://gentlenav.googlecode.com/files/RollPitchDriftCompensation.pdf
 2012-06-27 16:01:49 +10:00
Andrew Tridgell f27d85cb8d DCM: drop the 'drop z' method 
the 'drop z' method reduced the impact of noise on omegaI, but it also
made us more sensitive to errors in accelerometer calibration and
scaling, as demonstated by the logs from Gabor here:

  http://diydrones.com/xn/detail/705844:Comment:834373

Simulation testing shows that the other noise suppression methods
applied in the DCM code, in particular the slope limiting on omegaI
the removal of the weighting and the upcoming use of a _omega_I_sum
buffer have reduced the impact of noise enough that we can now safely
include z in the acceleration calculation.
 2012-04-23 12:13:24 +10:00
Andrew Tridgell 8e90aeea4e AHRS: added AHRS_YAW_P parameter 
this allows users to change the yaw gain in DCM
 2012-04-16 20:55:13 +10:00
rmackay9 c96dfb2108 AP_AHRS - changed parameter order to remove compiler warning 2012-04-09 17:37:11 +09:00
Andrew Tridgell 9e6c18cca4 AHRS: added missing AP_AHRS.h 2012-03-19 17:35:20 +11:00