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502 Commits

Author SHA1 Message Date
Randy Mackay f6b909d0a5 AHRS_NavEKF: resolve compiler warning re signed vs unsigned comparison 2016-01-07 12:31:47 +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
Andrew Tridgell ea823a818c AP_AHRS: enable EKF2 by default in AHRS 2016-01-05 16:42:01 +11:00
Jonathan Challinger 5cb7331095 AP_AHRS: fix example build 2015-12-29 10:46:35 -08:00
Jonathan Challinger a2999ece54 AP_AHRS_NavEKF: add setTakeoffExpected, setTouchdownExpected 2015-12-28 13:51:24 +09:00
Lucas De Marchi a096703b06 Global: don't link with AP_Progmem 
AP_Progmem is not used anymore.
 2015-12-27 15:58:12 -02:00
Andrew Tridgell 6a5c5969fa AP_AHRS: fixed example build 2015-12-27 14:57:32 +09:00
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 2b26a2eebe AP_AHRS: remove unused AP_ADC_AnalogSource 2015-12-03 13:32:42 +11:00
Caio Marcelo de Oliveira Filho 6e7b73610d waf: add waf support 2015-12-03 07:54:30 +11:00
Andrew Tridgell 1e8c391024 AP_AHRS: fixed float exception on start in SITL 
zero DCM matrix
 2015-12-01 15:19:45 +11:00
Andrew Tridgell b3e6129fd4 AP_AHRS: added EKF type 10 for SITL 
this bypasses all attitude and position estimators and uses the SITL
state directly. It can be used for when the SITL backend cannot
provide perfect sensor data
 2015-11-22 17:30:28 +11:00
Andrew Tridgell 7b38f2185f AP_AHRS: use the right DCM matrix for right EKF 
this fixes a bug where the EKF2 DCM matrix would be used for
get_dcm_matrix() when EKF1 was active
 2015-11-20 18:34:08 +11:00
Caio Marcelo de Oliveira Filho 3a17c858e3 AP_AHRS: use millis/micros/panic functions 2015-11-20 12:29:00 +09:00
Caio Marcelo de Oliveira Filho 4ea45b8df1 AP_AHRS_NavEKF: use millis/micros/panic functions 2015-11-20 12:28:53 +09:00
Caio Marcelo de Oliveira Filho 55e61538b3 AP_AHRS_DCM: use millis/micros/panic functions 2015-11-20 12:28:45 +09:00
Andrew Tridgell 8f4ce7f20b build: removed all nocore.inoflag files 
these were APM2 specific
 2015-11-16 08:05:17 +11:00
Paul Riseborough 803817821d AP_AHRS: Support changes to EKF2 interfaces that specify the instance 
An instance of -1 is specified which causes data for the primary instance to be returned.
 2015-11-08 15:37:28 +11:00
Lucas De Marchi dd784189a1 AP_AHRS: remove comment about avr-libc 2015-11-04 12:14:16 +11:00
Lucas De Marchi da86e29c27 AP_AHRS: remove check for AVR CPUs 
Remove the checks for HAL_CPU_CLASS > HAL_CPU_CLASS_16 and
HAL_CPU_CLASS >= HAL_CPU_CLASS_75. Corresponding dead code will be
removed on separate commits.
 2015-11-04 12:14:14 +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
Paul Riseborough 7ed36d8e65 AP_AHRS: Enable pre-flight GPS check status reporting for EKF2 2015-11-02 14:12:17 +11:00
Lucas De Marchi 20c6ffc5e3 Replace use of UARTDriver::printf_P() with UARTDriver::printf() 
This also starts to show warnings on places that were already using
wrong printf format strings.
 2015-10-30 14:35:25 +09:00
Lucas De Marchi 831d8acca5 Remove use of PROGMEM 
Now variables don't have to be declared with PROGMEM anymore, so remove
them. This was automated with:

    git grep -l -z PROGMEM | xargs -0 sed -i 's/ PROGMEM / /g'
    git grep -l -z PROGMEM | xargs -0 sed -i 's/PROGMEM//g'

The 2 commands were done so we don't leave behind spurious spaces.

AVR-specific places were not changed.
 2015-10-30 14:35:16 +09:00
Lucas De Marchi 2c38e31c93 Remove use of PSTR 
The PSTR is already define as a NOP for all supported platforms. It's
only needed for AVR so here we remove all the uses throughout the
codebase.

This was automated with a simple python script so it also converts
places which spans to multiple lines, removing the matching parentheses.

AVR-specific places were not changed.
 2015-10-30 14:35:04 +09:00
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 9d2e3157fe AP_AHRS: add a runtime flag for always using EKF 
The AHRS_EKF_USE_ALWAYS define is used to force EKF to be always
used. It is defined only for building ArduCopter. Change it to be a
runtime flag. Keep its default value still based on the original define,
once the Copter uses it the define will be removed.

The motivation is to move vehicle specifc code out of the general
libraries. This patch shouldn't change behavior.
 2015-10-21 11:01:10 +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
Caio Marcelo de Oliveira Filho 9b73fcb6f8 AP_AHRS: remove unnecessary includes in the example 2015-10-21 09:16:11 +11:00
Caio Marcelo de Oliveira Filho ec52df991c build: compile only the HAL files needed by the board 
Instead of requiring every program to specify the HAL related modules,
let the build system do it (in practice everything we compiled depended
on HAL anyway). This allow including only the necessary files in the
compilation.
 2015-10-21 09:16:07 +11:00
Caio Marcelo de Oliveira Filho 2e464a53c2 AP_HAL: make code not depend on concrete HAL implementations 
The switching between different AP_HAL was happening by giving different
definitions of AP_HAL_BOARD_DRIVER, and the programs would use it to
instantiate.

A program or library code would have to explicitly include (and depend)
on the concrete implementation of the HAL, even when using it only via
interface.

The proposed change move this dependency to be link time. There is a
AP_HAL::get_HAL() function that is used by the client code. Each
implementation of HAL provides its own definition of this function,
returning the appropriate concrete instance.

Since this replaces the job of AP_HAL_BOARD_DRIVER, the definition was
removed.

The static variables for PX4 and VRBRAIN were named differently to avoid
shadowing the extern symbol 'hal'.
 2015-10-21 09:16:07 +11:00
Andrew Tridgell 79d85f7e10 AP_AHRS: wait for up to 10 samples to get a valid accel vector 
the initial accel vectors can be invalid
 2015-10-21 09:09:11 +11:00
Andrew Tridgell eac91430a2 AP_AHRS: update _dcm_attitude() on reset() 
this prevents the roll/pitch being overwritten by the AHRS_NavEKF
update code on next update
 2015-10-21 08:58:30 +11:00
Jonathan Challinger c35605fa04 AP_AHRS_DCM: align tilt during initialization 2015-10-21 08:34:02 +11:00
Paul Riseborough 0722ebe8a0 AP_AHRS: Add EKF variance checks 2015-10-20 15:21:38 +11:00
Paul Riseborough ae830b44c4 AP_AHRS: Make EKF2 PosDownDerivative interface follow coding conventions 
Updates arising from peer review.
 2015-10-20 15:21:37 +11:00
Paul Riseborough e8037f94ad AP_AHRS: Make EKF2 PosDownDerivative interface follow coding conventions 
Updates arising from peer review
 2015-10-20 15:21:37 +11:00
Paul Riseborough 58d57994f4 AP_AHRS: Rectify coding errors found during peer review 
Fixes code that didn't take into account fall-through behaviour of C++ switch statements
Makes get_rigin furnction more generic allowing the consumer to decide what to do with an invalid origin
 2015-10-20 15:21:36 +11:00
Paul Riseborough e65ae51564 AP_AHRS: Enable AP_InertialNav to access all EKF functions via AP_AHRS 
This patch adds additional methods to the the AHRS library so that the AP_InertialNav library dow nto have to access the EKF directly. This enables Copter to fly using the EKF nominated by AHRS_EKF_TYPE.
It will also pave the way to elimination of the AP_InertialNav library.
 2015-10-20 15:21:36 +11:00
Gustavo Jose de Sousa 84f811fe76 AP_AHRS: use compass get_{field,offsets}() functions 
Both functions are equivalent, so we're going to simply use
get_{field,offsets}() instead of get_{field,offsets}_milligauss().
 2015-10-15 19:56:00 +09:00
Andrew Tridgell 232fc8a64d AP_AHRS: added send_ekf_status_report() 2015-09-29 10:58:54 +10:00
Randy Mackay 9f59b6f7b5 AP_AHRS: getLastYawResetAngle returns reset time 2015-09-24 16:57:41 +09:00
Andrew Tridgell 06c0ad987e AP_AHRS: fixed divide by zero in SITL 
fixes issue#2875
 2015-09-24 16:49:22 +10:00
Paul Riseborough f77bdd90fc AP_AHRS: Update EKF2 data logging 2015-09-24 12:58:44 +10:00
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 13f72e5ba9 AP_AHRS: expose EKF2 for logging 2015-09-23 12:09:36 +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 ed25c85d21 AP_AHRS: added NavEKF2 to constructor 2015-09-23 11:56:42 +10:00
Randy Mackay b5e1ad89b3 AHRS: remove INS start style from example sketch 2015-09-21 17:06:23 +09:00
Grant Morphett b2751d876c AP_AHRS: Fixed spelling error in parameter desc. 2015-09-16 09:33:30 +09:00
Staroselskii Georgii 4b948f5bb1 AP_AHRS: make DCM use milligauss 2015-09-09 10:38:16 +10:00
Andrew Tridgell c18c6d894e AP_AHRS: added prearm_failure_reason() 2015-09-08 15:50:22 +10:00
Randy Mackay a7569e3a61 AHRS_NavEKF: integrate INS use_accel 2015-08-19 16:44:22 +09:00
Randy Mackay 7f46cc9059 AHRS_DCM: integrate INS use_accel 2015-08-19 16:44:19 +09:00
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 7e2e78c1af AP_AHRS: protect against zero deltat in DCM 
fixes issue #2657
 2015-08-05 15:21:00 +10:00
Randy Mackay 9067abc037 AHRS_NavEKF: fix blended accel to use primary accel 2015-08-01 17:19:45 +09:00
Andrew Tridgell 9c776736c1 AP_AHRS: use delta_velocity and delta_angle in DCM 
this prevents an aliasing effect by using the correct delta velocity
time value for each accelerometer sample used
 2015-07-30 11:04:31 +10:00
mirkix d169fea9ec AP_AHRS: Add Linux support for example 2015-06-18 08:59:16 +10:00
Andrew Tridgell edab50ab5a AP_AHRS: convert example from .pde to .cpp 2015-06-01 16:58:10 +10:00
Andrew Tridgell 04ba5fa0bd AP_AHRS: pass EKF into constructor 
this makes it possible for var_info in vehicle code to be in text
segment
 2015-06-01 16:16:24 +10:00
Andrew Tridgell 00ca493860 AP_AHRS: prevent a floating exception in update_trig 2015-05-27 22:10:39 +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
Andrew Tridgell 5514a9f690 AP_NavEKF: base EKF decisions on vehicle class 
using the vehicle class rather than the build macros allows this to
work correctly in replay
 2015-05-19 15:21:22 +10:00
Andrew Tridgell 92daa15ccc AP_AHRS: on plane and rover make AHRS unhealthy when EKF not initialised 
planes and rovers need full absolute position from the EKF if the EKF
is going to be used. We don't want users to arm without full
capabilities
 2015-05-19 15:21:21 +10:00
Andrew Tridgell 29f0561ce4 AP_AHRS: reject EKF for plane when we have GPS and aren't fusing 
plane users would prefer to use GPS in this case
 2015-05-17 21:24:57 +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 3529e02675 AP_AHRS: if we have 3 gyros then only use first two 
the 3rd gyro on a PH2 has a lot more noise as it is not vibration
isolated
 2015-05-09 21:00:49 +10:00
Randy Mackay 3390d9932e AP_AHRS: fix example sketch 2015-05-09 12:23:05 +09:00
Peter Barker 463270e0ee AP_AHRS: avoid FPE when we don't have a compass reading 2015-05-05 15:02:35 +10:00
Andrew Tridgell 4d4a607b80 AP_AHRS: revert AP_Math class change 2015-05-05 13:27:05 +10:00
Tom Pittenger 20f47417d5 AP_AHRS: compiler warnings: apply is_zero(float) or is_equal(float) and float to doubles 2015-05-05 13:26:55 +10:00
Andrew Tridgell e597575747 AP_AHRS: fix for HAL_SITL rename 2015-05-05 09:45:54 +10:00
Andrew Tridgell 6bfca648b9 AP_AHRS: raise DCM P gains when disarmed for first 20 seconds 2015-04-28 14:07:39 +10:00
Tom Pittenger e28c555889 AHRS_DCM: fix compile warnings re float constants 
Also fix example sketch
 2015-04-24 12:26:08 +09:00
Paul Riseborough 7f1749dc1c AP_AHRS: Allow EKF to pull data from range finder object 2015-04-24 10:56:58 +09:00
Paul Riseborough 405862bd8f AP_AHRS: Reduce time delay for EKF initialisation 2015-04-23 20:35:52 +09:00
Paul Riseborough 5184bca87f AP_AHRS: Prevent DCM reporting good tilt error when inverted 2015-04-23 20:35:39 +09:00
Paul Riseborough ea8217bd3a AP_AHRS: Reduce time constant on filtering of DCM error reporting 
Reduces time constant from 2 to 1 second to make data more useful for pre-flight alignment checks by the EKF
 2015-04-23 20:35:35 +09:00
Randy Mackay 6e30093924 AP_AHRS: correct sanity checks on update_trig 2015-04-23 09:45:43 +09:00
Jonathan Challinger 6a6ccb4f32 AP_AHRS: add sanity checks 2015-04-22 21:50:51 +09:00
Randy Mackay c6f71ea2e0 AHRS: make get_error_rp and get_error_yaw const 2015-04-21 22:42:17 +09:00
Andrew Tridgell a0969905ce AP_AHRS: make get_error_rp() and get_error_yaw() const 
this makes them usable by multiple consumers, and allows use by EKF
 2015-04-21 21:42:17 +10:00
Andrew Tridgell d7249cc1e6 AP_AHRS: only use EKF for plane and rover if all data available 
we need position and velocity to be working for plane and rover
 2015-04-14 09:57:45 +10:00
Paul Riseborough ff9917d338 AP_AHRS: Fix bug preventing EKF from initialising 2015-04-10 11:07:42 +09:00
Jonathan Challinger dc5bdd5ad8 AP_AHRS: use filtered INS output to compute _accel_ef_blended 2015-04-09 20:19:56 +09:00
Paul Riseborough d44cf14178 AP_AHRS : Publish EKF learned compass offsets 2015-04-03 15:24:47 -07:00
Andrew Tridgell 8ba043e593 AP_AHRS: fixed EKF startup bug 
This fixes the EKF for when GPS lock takes more than 10 seconds

fixes issue #2010
 2015-03-28 10:52:22 -07:00
Randy Mackay 98efcd5f03 AHRS: always use EKF for copter 2015-03-19 15:15:51 +09:00
Randy Mackay 7f25938834 AHRS: fix example sketch 2015-03-16 20:29:19 +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
Andrew Tridgell 585a105128 AP_AHRS: use compass->last_update_usec() 2015-03-14 12:31:50 +11:00
Andrew Tridgell b488d6de00 AP_AHRS: fix for new compass API 2015-03-13 18:46:17 +11:00
Andrew Tridgell 031c81beee AP_AHRS: removed call to 1D accel cal 2015-03-12 12:50:29 +11:00
Andrew Tridgell 6781a8d329 AP_AHRS: fixed get_position for EKF to use correct relative altitude 
we need to use the EKF relative height plus the current AHRS home
 2015-02-21 10:12:53 +11:00
Jonathan Challinger 180c85817d AP_AHRS: remove armed state, use hal.util soft_armed state 2015-02-11 20:25:11 +11:00
mirkix 49d81a9c99 AP_AHRS: fix apm1 oilpan support 2015-02-11 18:22:39 +11:00
Randy Mackay b66a1135d9 AHRS: fix example sketch compile error 2015-02-03 15:57:11 +09:00
Andrew Tridgell ee9c778834 AP_AHRS: added a get_NavEKF_const() function 
needed for AP_Mount_MAVLink

Pair-Programmed-With: Paul Riseborough <p_riseborough@live.com.au>
 2015-02-03 09:49:16 +11:00
Andrew Tridgell 68f64fa11c AP_AHRS: make the healthy() method const 2015-02-01 14:13:52 +11:00
Randy Mackay d8664d15d6 AHRS: fix example sketch 2015-01-28 17:15:35 +09:00
Andrew Tridgell ed0a56cc3c AP_AHRS: cope with the changed semantics of airspeed.use() 2015-01-20 11:27:58 +11:00
Andrew Tridgell d2c827aa4b AP_AHRS: updates for new AP_Baro API 2015-01-09 11:50:56 +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
priseborough 5b8265ad6f AP_AHRS: Expand EKF speed limit public method to handle control limits 2014-12-06 18:16:50 +11:00
priseborough 83775554ea AP_AHRS: Publish EKF ground speed limit 2014-12-06 18:16:50 +11:00
priseborough 5532750a99 AP_AHRS: Add public method to inhibit GPS useage when using EKF 
This provides the calling vehicle software the abiity to request the EKF to not use GPS.
An integer is returned that indicates the type of operation available:
0 = request rejected (request will only be accepted if the EKF is in static mode, eg pre-armed)
1 = request accepted, attitude, vertical velocity and position estimates available
2 = request accepted, attitude, height rate, height, horizontal velocity and relative position estimates available
 2014-12-06 18:16:49 +11:00
priseborough 44e1695d5a AP_AHRS : Enable EKF start without GPS 2014-12-06 18:16:46 +11:00
priseborough a4984a1e76 AP_AHRS : Add range finder health status to EKF optical flow data 2014-12-06 18:16:44 +11:00
priseborough 12b012a00e AP_AHRS : temporary mods to test use of flow sensor internal gyro data 2014-12-06 18:16:44 +11:00
priseborough 7b76fc29fb AP_AHRS : EKF optical flow fusion support preliminary changes 2014-12-06 18:16:44 +11:00
Randy Mackay 4452aa8448 AP_AHRS_DCM: compile error fix for low speed CPUs 
Also correct initialisatoin order to remove compiler warning
 2014-12-05 19:43:05 +09:00
Jonathan Challinger 9261dfdefb AP_AHRS_NavEKF: overload get_accel_ef and get_accel_ef_blended functions 2014-12-05 19:40:08 +09:00
Jonathan Challinger 4975cefd84 AP_AHRS_DCM: update _accel_ef_blended 2014-12-05 19:40:06 +09:00
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
Andrew Tridgell 38c1b622f3 AP_AHRS: fixed example build on APM2 2014-11-28 17:59:18 +11:00
Andrew Tridgell 89cdae62b4 AP_AHRS: fixed example build 2014-11-28 10:40:52 +11:00
priseborough 2c07299c04 AP_AHRS : Add reset of EKF gyro bias states 2014-10-29 15:32:18 +09:00
Randy Mackay dffcfb42bc AHRS: add reset_gyro_drift method 2014-10-28 20:25:33 +09:00
Andrew Tridgell 26de54c29a AP_AHRS: cope with 90 degree pitch in update_trig() 
this prevents a numerical error in Replay
 2014-10-25 11:21:04 +11:00
Andrew Tridgell f79ce92673 AP_AHRS: fixed example build 2014-10-24 12:10:40 +11:00
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 eec5cd5add 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 11:15:33 +11:00
Andrew Tridgell 63c06ea2af AP_AHRS: fixed calls to DCM in parent class 
use_compass() and reset() are common to AP_AHRS_DCM and
AP_AHRS_NavEKF. As AP_AHRS_NavEKF is a child of AP_AHRS_DCM, when we
call use_compass() from within AP_AHRS_DCM we actually end up calling
AP_AHRS_NavEKF::use_compass().

This has the effect of disabling the compass in DCM when EKF is active
and EKF has decided not to use the compass. That means that the DCM
yaw (and in fact the whole attitude) can get badly off while EKF is
enabled, making DCM an ineffective fallback if EKF fails.

The fix is to call the specific class versions of use_compass() and
reset()
 2014-10-15 10:12:50 +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
priseborough 7370e07c8d AP_AHRS : Prevent EKF starting if GPS sats less than AHRS_GPS_MINSATS 2014-10-01 12:55:29 +10:00
Andrew Tridgell e9a9e33280 AP_AHRS: use EKF use_compass() if EKF enabled 
this allows magfailed status to show on console via SYS_STATUS health
bits
 2014-08-24 21:00:56 +10:00
Randy Mackay a6de3283b6 AHRS_DCM: init members to resolve compiler warnings 2014-08-14 11:27:31 +09:00
Andrew Tridgell 0f5b65e40e AP_AHRS: fixed example build 2014-08-13 21:46:04 +10:00
Przemek Lekston ae4814a773 AP_AHRS_DCM.cpp: changed the direction of position projection to ensure correct behavious in crosswind 2014-08-07 12:34:30 +10:00
Andrew Tridgell 82d0666501 AP_AHRS: fixed example build 2014-07-25 17:54:04 +10:00
Andrew Tridgell 6a275372dd AP_AHRS: ensure get_position() fills in flags 2014-07-25 11:40:16 +10:00
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
Jonathan Challinger 966d66ef40 AP_AHRS_NavEKF: use gyro drift states from EKF in get_gyro 2014-07-13 21:34:44 +10:00