Commit Graph

198 Commits

Author SHA1 Message Date
Andrew Tridgell 6f5d3a0dfd AP_AHRS: don't reject airspeed using EKF if dead-reckoning
when dead-reckoning the EKF wind estimate can diverge from reality,
leading to us rejecting a valid airspeed sensor. We are best off
trusting airspeed if we are dead-reckoning
2023-06-08 09:29:59 +10:00
Andrew Tridgell f7be18755e AP_AHRS: fixed earth frame accel for EKF3 with significant trim 2023-02-28 17:16:39 +11:00
Tom Pittenger 9ac0514e8e AP_AHRS: move AP_NMEA_OUTPUT to a first class library 2023-02-07 21:12:07 +11:00
Peter Barker 7fa0b75d48 AP_AHRS: avoid using struct Location
clang reports this could be a problem when compiling under some EABIs.  Remove it from most places as it is just noise, replace with class where we want to avoid including Location.h
2023-02-04 22:51:54 +11:00
Peter Barker aa7ab28969 AP_AHRS: add a bool wind_estimate(...)
NavEKF3 can fail to return a wind estimate, and we lose that value
2023-01-18 11:20:32 +11:00
Peter Barker d78ea08d24 AP_AHRS: move AP_AHRS_SIM::get_results into backend file 2023-01-17 10:49:56 +11:00
Peter Barker c42754b691 AP_AHRS: create an AP_AHRS_SIM backend 2023-01-12 13:11:40 +11:00
Peter Barker 3854e4a99d AP_AHRS: get_relative_position_D_home: don't use home until set 2023-01-04 18:11:01 +11:00
Iampete1 f933f148ed AP_AHRS: always run external AHRS arming check if enabled 2023-01-03 10:32:20 +11:00
Andrew Tridgell 87b4b031bf AP_AHRS: if DCM has no yaw source then don't fallback when hovering
this copes with quadplanes with no compass. With a compass we are
better off using EKF when not in fly-forward as it will give better
height control.

This makes QHOVER for takeoff in quadplanes with no compass a lot more
flyable
2022-12-20 10:34:22 +11:00
Andrew Tridgell 56c8cffc07 AP_AHRS: auto-enable EKF3 for misconfiguration
this fixes a "climb away" in quadplanes when AHRS_EKF_TYPE=2 and
EK2_ENABLE=0. The user has ARMING_CHECK=5390 to disable key arming
checks, and the plane flew on DCM as the configured EKF wasn't
enabled.

This resulted in AHRS::get_origin() returning false as it couldn't ask
EKF2 for the origin (as EKF2 was not enabled or instantiated)

The result was an incorrect calculation for target height during the
descent stage of QRTL, resulting in a climb away until the user took
over
2022-12-20 10:34:22 +11:00
Andrew Tridgell 81b519056b AP_AHRS: implement timing jitter in SITL
make the AHRS update take a random amount of extra CPU time
2022-12-06 11:03:50 +11:00
Stephen Dade 5d3e636d71 AP_AHRS: Add support for fixed height optical flow 2022-12-01 08:03:47 +09:00
Peter Barker 141074d07a AP_AHRS: use Vector3f.xy() to avoid creating a fresh Vector2f 2022-11-16 17:59:29 +11:00
Randy Mackay f2ed41f5cf AP_AHRS: pre-arm msg loses extra AHRS prefix 2022-10-21 08:07:39 +11:00
Paul Riseborough 6a328c5d3b AP_AHRS: Add accessor function for airspeed health monitoring 2022-09-26 14:17:53 +10:00
Andrew Tridgell f80ba734c8 AP_AHRS: removed use of "blended" accel values
calculate a single EF accel based on primary IMU
2022-08-21 18:51:59 +10:00
Andrew Tridgell 924759510d AP_AHRS: fixed use of filtered gyro with DCM active
we need to overwrite _omega with the filtered gyro value, so we get
both the low pass filter and the notch filters. Otherwise we will fly
with very high noise gyro data

this also fixes the accel_ef_blended to use the filtered accel. It is
not blended, and removing "_blended" from the API will be worthwhile
as a followup
2022-08-21 18:51:59 +10:00
nrt c3d8f0fa45 AP_AHRS: added a getter function to get active source set once the ekf3 filter is started 2022-08-18 02:05:27 -04:00
Peter Barker cfb391dc2c AP_AHRS: stop using GCS_MAVLINK.h in header files
... by passing through a reference to a link object instead
2022-08-16 09:45:51 +10:00
Henry Wurzburg a5b373e912 AP_AHRS: modify AHRS type check for compass-less setups 2022-08-09 11:02:24 +10:00
Andrew Tridgell 0ededd7c62 AP_AHRS: use wind from simulation if available with EKF type 10 2022-08-02 07:49:34 +10:00
Peter Barker 4909866dd9 AP_AHRS: add prearm check that we are using configured AHRS type 2022-07-28 15:53:13 +10:00
Henry Wurzburg 51a21679be AP_AHRS: expand description of custom orientation parameters 2022-07-21 15:45:28 +01:00
Peter Barker 5a1d4f3bf5 AP_AHRS: update rotation based on board_orient parameter 2022-06-12 17:32:11 +10:00
Andrew Tridgell 5a1a87cc60 AP_AHRS: fixed bug in blended EKF bias
The bug fix in #20431 was incomplete, and ended up with the wrong
blended accel bias. This fixes it
2022-05-04 06:49:34 +10:00
Iampete1 6c24a5ff37 AP_AHRS: add method to get view 2022-04-26 10:03:30 +10:00
Peter Barker c1c18331f9 AP_AHRS: remove instance id from EK2 external interface
Removes passing of instance id in interfaces where -1 was the only value
ever passed in
2022-04-12 10:25:29 +10:00
Peter Barker b762aac6ce AP_AHRS: remove instance id from EK3 external interface
Removes passing of instance id in interfaces where -1 was the only value
ever passed in
2022-04-06 17:36:05 +10:00
Peter Barker fd666dc4f1 AP_AHRS: subtract accel bias from correct ins accel instance
In the case that you have INS_USE indicating IMUs should be used, but
EK3_IMU_MASK leaving some IMUs unused, we subtract the bias from the
wrong INS data
2022-04-03 11:41:09 +10:00
Peter Barker 7ad9609fb7 AP_AHRS: split AP_HAL_SITL and HAL_SIM_ENABLED 2022-03-17 14:39:55 +11:00
Peter Barker 4896f8a6d7 AP_AHRS: rename SITL backend to SIM 2022-03-17 14:39:55 +11:00
Iampete1 480cc3fa46 AP_AHRS: convert param to new custom rotation 2022-03-02 18:16:42 +11:00
Iampete1 1cc2e082e0 AP_AHRS: remove custom rotations 2022-03-02 18:16:42 +11:00
Peter Barker 24099f9a2d AP_AHRS: include cleanups 2022-03-01 11:21:33 +11:00
Andrew Tridgell 01ac314837 AP_AHRS: use EKF rejecting_airspeed flag
stop using airspeed sensor when EKF is rejecting the sensor
2022-02-07 14:13:49 +11:00
RuffaloVM bb1bd69172 AP_AHRS : remove duplicated words from comments 2022-02-04 08:36:35 +00:00
Randy Mackay 9126e14c9c AP_AHRS: getOptFlowSample returns latest correct flow data for use in calibration 2022-01-29 08:26:12 +09:00
Peter Barker bd069cc5e9 AP_AHRS: move logging of SIMSTATE, AHRS2 and POS into AP_AHRS library 2022-01-25 10:59:17 +11:00
Peter Barker ff63b62b0c AP_AHRS: rename AP_AHRS::get_position to get_location 2022-01-25 10:47:22 +11:00
Peter Barker a6099acd5c AP_AHRS: return failure in pre_arm_check if unhealthy 2022-01-19 18:33:07 +11:00
Joshua Henderson 8a6942a9df AP_AHRS: add define AP_AIRSPEED_ENABLED 2022-01-19 18:21:32 +11:00
Peter Barker a31ff08f23 AP_AHRS: create and use AP_AHRS_SIM_ENABLED 2022-01-17 19:12:56 +11:00
Andrew Tridgell 304b7df8c2 AP_AHRS: make the EKF accel bias accessible
needed for fixed wing yaw damper
2021-12-07 17:05:54 +11:00
Andrew Tridgell 0141ec5be7 AP_AHRS: fixed switching airspeed sensor based on EKF3 affinity
we need to use the EKF selected airspeed sensor when the EKF is setup
to run a different sensor on each lane
2021-11-24 13:52:13 +11:00
Andrew Tridgell 01fb16b3b0 AP_AHRS: relax arming checks for inactive AHRS types
When using an EKF as ride-along we should not fail arming if it has
inconsistent yaw between its lanes. This is especially important when
using external yaw or GPS yaw with EKF3, where yaw is expected to be
bad with EKF2.

The check on DCM is based on the existance of an AHRS view. This is so
that tailsitters do not get arming failures due to the inability of
DCM to cope with being nose up
2021-11-04 17:44:29 +11:00
Andrew Tridgell bdf903b862 AP_AHRS: add accessor for GSF yaw estimator 2021-11-01 09:00:27 +11:00
Andy Piper e1dd0fd70d AP_AHRS: convert APM_BUILD_COPTER_OR_HELI() to APM_BUILD_COPTER_OR_HELI 2021-10-26 11:42:12 +11:00
Peter Barker 44d56854be AP_AHRS: make AP_AHRS_DCM an AP_AHRS backend 2021-10-06 19:10:36 +11:00
Hwurzburg 873097c030 AP_AHRS: Change orientation labels to march order of rotation 2021-10-05 11:21:48 +11:00