Commit Graph

197 Commits

Author SHA1 Message Date
Peter Barker
61ed6e07eb AP_NavEKF3: shorten EKF3 initialisation send-text string
Now:
pbarker@bluebottle:~/rc/ardupilot(master)$ echo -n "EKF3 IMU1 buffers IMU=11 OBS=4 OF=10, dt=0.0120" | wc
      0       7      47
pbarker@bluebottle:~/rc/ardupilot(master)$

Closes #11952
2019-08-05 19:50:32 +10:00
Andrew Tridgell
fc65e04ef2 AP_NavEKF3: fixed baro innovation gate when on ground with AIDING_NONE
when on the ground without a position source we would disable the
innovation gate for the barometer. This meant that a single (or small
number of) really bad baro readings would be fused into the EKF,
causing it to destabilise

Fixes #11903
2019-07-30 08:23:21 +10:00
Andrew Tridgell
04944fa6ce AP_NavEKF3: review fixes
thanks Paul!
2019-07-29 10:08:22 +10:00
Andrew Tridgell
451fe840ee AP_NavEKF3: ensure that EKF origin stays in sync on all cores
this prevents the EKF origin on different cores from being initialised
to different values. A common value is stored in the frontend and used
by a core if it doesn't have an origin
2019-07-29 10:08:22 +10:00
Andrew Tridgell
0fcb2037e1 AP_NavEKF3: use origin lat for earth rates
home may not yet be set when this code is run, so using home may be
invalid
2019-07-29 10:08:22 +10:00
Andrew Tridgell
a3411efdb5 AP_NavEKF3: set origin on all cores
when EKF origin is set, make sure it is set on all cores
2019-07-29 10:08:22 +10:00
Andrew Tridgell
3818d8ecda AP_NavEKF3: restrict setting of EKF origin
only allow EKF origin to be set if EKx_GPS_TYPE is set to 3, which is
used for indoor operation
2019-07-29 10:08:22 +10:00
Siddharth Purohit
db9f7c3dd5 AP_NavEKF3: do logging for 3rd EKF core 2019-07-23 12:34:38 +10:00
priseborough
209a32b8b9 AP_NavEKF3: Fix bug in use of external 321 yaw to align 2019-07-13 11:05:57 +10:00
priseborough
122f214416 AP_NavEKF3: Don't allow mag to interfere with use of external yaw sensor 2019-07-13 11:05:57 +10:00
Andrew Tridgell
b56914b879 AP_NavEKF3: use GPS yaw if available and enabled
this allows a suitable GPS to be used as an external yaw source
2019-07-13 11:05:57 +10:00
priseborough
0c4f92d4c1 AP_NavEKF3: Add control logic to use external yaw sensor 2019-07-13 11:05:57 +10:00
priseborough
71d358803a AP_NavEKF3: Fix yaw sensor alignment status reporting 2019-07-13 11:05:57 +10:00
priseborough
977a7b68ed AP_NavEKF3: Add push to buffer for external yaw sensor data 2019-07-13 11:05:57 +10:00
priseborough
0a971c5181 AP_NavEKF3: Add function to reset yaw to external measurement 2019-07-13 11:05:57 +10:00
Andrew Tridgell
62575a194c AP_NavEKF3: Add data buffers for yaw sensor 2019-07-13 11:05:57 +10:00
priseborough
87c7649d09 AP_NavEKF3: Add interface for yaw angle measurements 2019-07-13 11:05:57 +10:00
Andrew Tridgell
634db441f8 AP_NavEKF3: origin handling fixes from Francisco 2019-07-11 06:40:55 +10:00
Andrew Tridgell
92783bccfa AP_NavEKF3: don't allow height datum reset when not on ground 2019-07-07 19:20:32 +10:00
Andrew Tridgell
3f9e48951b AP_NavEKF3: set terrainState to zero on height datum reset 2019-07-07 19:20:32 +10:00
Andrew Tridgell
f3fc910abe AP_NavEKF3: continuously update gpsGoodToAlign
use it to determine how to handle a height datum reset
2019-07-07 19:20:32 +10:00
Andrew Tridgell
b9a5794671 AP_NavEKF3: ensure that both AMSL and relative alt are correct after a reset
this forces the EKF origin to the GPS alt on a height datum reset if
we have GPS lock. If we don't do this then the reported AMSL alt will
drift over time away from the GPS alt when we reset while on the
ground
2019-07-07 19:20:32 +10:00
Andrew Tridgell
2208689893 AP_NavEKF3: don't use disabled gyros in opticalflow takeoff detection 2019-07-07 19:03:01 +10:00
Andrew Tridgell
209bca162c AP_NavEKF3: added inactive bias learning
this allows for biases on inactive IMUs to be learned so that an IMU
switch within an EKF lane does not cause a jump in the IMU data
2019-07-07 19:03:01 +10:00
Peter Barker
ce45baa034 AP_NavEKF3: factor out and logging functions, reuse for 2nd core 2019-07-06 19:05:51 +10:00
Peter Barker
f3f364de26 AP_NavEKF3: move logging in from AP_Logger 2019-07-06 19:05:51 +10:00
Andrew Tridgell
5151416080 AP_NavEKF3: force first EKF lane when disarmed
this ensures we consistently fly with EKF lane1 if it is healthy at
the point we arm. Otherwise the choice of lane will be a lottery.

This is important as many systems have quite different filtering and
vibration characteristics on their different IMUs. We by default
enable fast sampling only on the first IMU for example, which means
the 2nd and 3rd IMUs are more vulnerable to high freq causing
aliasing.
2019-07-04 06:48:23 +10:00
Peter Barker
ef2589738d AP_NavEKF3: use beacon singleton 2019-07-01 07:20:58 +09:00
Michael du Breuil
b624f6f008 AP_NavEKF3: Reduce scope of AP_Baro.h 2019-06-27 14:56:21 +10:00
Michael du Breuil
be74b631fe AP_NavEKF3: Fix AP_GPS.h include 2019-06-18 10:02:05 +10:00
Andrew Tridgell
60831c2878 AP_NavEKF3: added checkLaneSwitch()
this allows the vehicle code to ask the EKF to change lanes if it is
about to do an EKF failsafe
2019-06-12 09:52:20 +10:00
Peter Barker
dce472745e AP_NavEKF3: take EAS2TAS from AHRS rather than airspeed 2019-06-06 12:44:36 +10:00
Jaaaky
f21e4d833c AP_NavEKF3: Fix GPS < 3D empty PreArm: msg-as EKF2 2019-05-20 16:57:57 +10:00
Randy Mackay
0a5d6a430a AP_NavEKF3: accept optical flow data at up to 50hz 2019-05-11 16:23:57 +09:00
Andrew Tridgell
e4f6ffe719 AP_NavEKF3: fixed bug in EKF lane selection
this fixes an issue in selecting the best lane to change to when we
have 3 or more EKF cores. The bug is that if the current lane is
unhealthy it would always choose the last healthy lane instead of
choosing the lane with the lowest score
2019-05-07 06:59:50 +10:00
Michael du Breuil
fe3b29a088 AP_NavEKF3: Allow checking all cores for health 2019-04-09 10:53:25 +10:00
Pierre Kancir
b3a1c9c90c AP_NavEKF3: use get_distance_NE instead of location_diff 2019-04-08 08:00:52 -07:00
Paul Riseborough
9aaa0cd2e0 AP_NavEKF3: Fix typo in comment 2019-04-02 10:51:12 +11:00
Paul Riseborough
b7e0a2345c AP_NavEKF3: Fix indexing error
Caused by copy and paste from AP_NavEKF2 which useds index 5 for vertical velocity. EKF3  should use index 6.
2019-04-02 10:51:12 +11:00
Paul Riseborough
0d3e1a7d23 AP_NavEKF3: flow use parameter improvements 2019-04-02 10:51:12 +11:00
Paul Riseborough
d3e9281846 AP_NavEKF3: Update default plane optical flow param values
Reduce time required to form estimate of terrain offset
2019-04-02 10:51:12 +11:00
Paul Riseborough
35c82ef67f AP_NavEKF3: Improve optical flow height estimation 2019-04-02 10:51:12 +11:00
Paul Riseborough
b848e231c7 AP_NavEKF3: Add parameter to control how optical flow data is used 2019-04-02 10:51:12 +11:00
Mark Whitehorn
3c432cf25c AP_NavEKF3: add getQuaternionBodyToNED 2019-03-29 10:58:00 +11:00
Tom Pittenger
17ee20af3f AP_NavEKF3: rename dataflash to logger 2019-03-28 16:40:57 +11:00
Dr.-Ing. Amilcar do Carmo Lucas
390e0fa601 AP_NavEKF3: replace location_offset() and get_distance() function calls with Location object member function calls
This allows removing duplicated code
2019-02-28 11:44:09 +11:00
Arjun Vinod
f382a657bd AP_NavEKF3: fixed typos 2019-02-26 08:33:39 +11:00
Tom Pittenger
55377b234f AP_NavEKF3: remove HAL_CPU_CLASS_150 check, 150 is already a minimum requirement 2019-02-17 13:00:00 -08:00
Tom Pittenger
8a6a39b590 AP_NavEKF3: unify singleton naming to _singleton and get_singleton() 2019-02-10 19:09:58 -07:00
Andrew Tridgell
39ffef1f08 AP_NavEKF3: fixed EKF compass switching
when we had 3 compasses the lack of the 'break' meant when we switched
compass in flight we would always switch back instantly to the one
that we had just rejected.
2019-02-09 13:04:52 +11:00