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123 Commits

Author SHA1 Message Date
Peter Barker 903d81c263 AP_NavEKF2: use compass reference rather than repeatedly asking AHRS for it 2020-03-13 08:26:18 +11:00
Peter Barker 369292f7f3 AP_NavEKF2: stop relying on the presence of a RangeFinder 2019-12-11 08:09:01 +11:00
Andrew Tridgell fce4d6952f AP_NavEKF2: don't use WMM tables unless we have a compass scale factor set 2019-12-03 20:48:23 +11:00
Peter Barker 99689f65f8 AP_NavEKF2: adjust for renaming of RangeFinder files 2019-11-12 07:14:37 +08:00
Peter Barker 9735684184 AP_NavEKF2: use enum-class for RangeFinder Status 2019-11-09 08:01:53 +11:00
Peter Barker 3619856fc9 AP_NavEKF2: correct return of empty prearm string 2019-09-19 08:47:47 +09:00
Michael du Breuil a4d10b2e86 AP_NavEKF2: Allow the GPS to be responsible for logging 2019-09-10 09:09:17 +10:00
Andrew Tridgell 414d3eb670 AP_NavEKF2: don't fuse GPS when EK2_GPS_TYPE=3 
when using a vision position system, the user may have vision derived
GPS data coming in using GPS_INPUT msgs. We should not fuse these when
EK2_GPS_TYPE=3 as we end up fusing both vision data and GPS data,
which does not work with the current EK2 code

This change makes it possible to run EK2 and EK3 in parallel in a
Vicon, wityh EK2 using VISION_POSITION_ESTIMATE data and EK3 using
GPS_INPUT (with yaw) data.
 2019-08-26 12:27:31 +10:00
Andrew Tridgell c57b25b4c9 AP_NavEKF2: 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 2427440e13 AP_NavEKF2: origin handling fixes from Francisco 2019-07-11 06:40:55 +10:00
Andrew Tridgell 9372073f63 AP_NavEKF2: continuously update gpsGoodToAlign 
use it to determine how to handle a height datum reset
 2019-07-07 19:20:32 +10:00
Andrew Tridgell 1c4c5a6850 AP_NavEKF2: learn gyro biases for inactive gyros 
this allows us to learn the gyro biases each lane would need if it had
to switch to another gyro due to a sensor failure. This prevents a
sudden change in gyro bias on IMU failure
 2019-07-07 19:03:01 +10:00
Peter Barker 82df167ad4 AP_NavEKF2: use beacon singleton 2019-07-01 07:20:58 +09:00
Michael du Breuil f04e47fc17 AP_NavEKF2: Reduce scope of AP_Baro.h 2019-06-27 14:56:21 +10:00
Michael du Breuil 892b687c09 AP_NavEKF2: Fix AP_GPS.h include 2019-06-18 10:02:05 +10:00
Peter Barker 11f31c2851 AP_NavEKF2: take EAS2TAS from AHRS rather than airspeed 2019-06-06 12:44:36 +10:00
Andrew Tridgell 3835d2613e AP_NavEKF2: added EK2_MAG_EF_LIM parameter 
this sets a limit on the difference between the earth field from the
WMM tables and the learned earth field inside the EKF. Setting it to
zero disables the feature. A positive value sets the limit in mGauss.
 2019-06-03 12:21:29 +10:00
Pierre Kancir 50e99b6e1a AP_NavEKF2: use get_distance_NE instead of location_diff 2019-04-08 08:00:52 -07:00
Tom Pittenger b32e8a4424 AP_NavEKF2: remove HAL_CPU_CLASS_150 check, 150 is already a minimum requirement 2019-02-17 12:59:52 -08:00
Andrew Tridgell ccc1f906f8 AP_NavEKF2: 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
chobits 3766ee1b60 AP_NavEKF2: add external navigation data lag 2019-01-31 08:30:22 +09:00
chobits 08b9bf4a89 AP_NavEKF2: fix extNav position noise 2018-10-24 19:14:54 +09:00
Andrew Tridgell 805647df85 AP_NavEKF2: enable use of in-flight compass learning 2018-10-24 07:25:42 +10:00
Peter Barker d8aa8d2b71 AP_NavEKF2: fix writeOptFlowMeas signature 
const some of the vectors, stop taking references to scalars that aren't
being changed
 2018-09-11 09:03:22 +10:00
Michael du Breuil ee9cc28fda AP_NavEKF2: Utilize the GPS drivers estimate for lag 2018-08-07 09:55:26 +10:00
Dr.-Ing. Amilcar do Carmo Lucas 59e087214f AP_NavEKF2: spell in comments (NFC) 2018-07-10 08:17:57 +09:00
Paul Riseborough c680b931dc AP_NavEKF2: Enable fusion of external nav position data 2018-03-27 20:28:42 +09:00
Peter Barker 40957ec430 AP_NavEKF2: use ins singleton 2018-03-16 00:37:35 -07:00
Peter Barker 5ab89324b2 AP_NavEKF2: use baro singleton 2018-03-08 21:20:05 -08:00
Peter Barker 9c8466dc03 AP_NavEKF2: use GPS singleton 2017-12-27 00:58:02 +00:00
priseborough 3b32d583a9 AP_NavEKF2: Fix delta time use error 2017-12-12 11:39:38 +11:00
priseborough 440d361aff AP_NavEKF2: Limit range of delta times 2017-12-12 11:39:38 +11:00
Peter Barker 1e83ef3c44 AP_NavEKF2: use rangefinder backend accessors 2017-08-15 18:30:45 +01:00
priseborough f2f3067326 AP_NavEKF2: Add interface to control GPS vertical velocity use 2017-08-10 19:49:45 +10:00
Peter Barker 5da3759ff4 AP_NavEKF2: eliminate GCS_MAVLINK::send_statustext_all 2017-07-11 23:53:53 +01:00
priseborough 36e7dfb5f6 AP_NavEKF2: Improve GPS reference height estimator 
Fix rounding error bug preventing state from updating after initial convergence.
Decouple GPS reference height from published EKf origin height.
Add bitmask parameter to control update and publishing of GPS reference height.
 2017-06-14 12:44:41 +01:00
Dr.-Ing. Amilcar Do Carmo Lucas ce37517268 AP_NavEKF2: Improve comments, typos 2017-05-03 08:44:49 +09:00
priseborough 2d4eee0cce AP_NavEKF2: documentation update 2017-05-01 14:24:55 +10:00
Andrew Tridgell 2de8777669 AP_NavEKF2: added inter-EKF scheduling cooperation 
this changes the stragegy for load levelling between EKF cores so it
works between EK2 and EK3, and with future estimators as well.

It allows us to run EK3 and EK2 at the same time with good scheduling
performance
 2017-05-01 14:24:55 +10:00
priseborough e48f46c98b AP_NavEKF2: Add monitoring of average EKF time step 2017-04-29 11:03:44 +10:00
Andrew Tridgell ee5c032f27 AP_NavEKF2: added recording of timing statistics 2017-04-28 17:19:39 +10:00
Randy Mackay 563be389ee AP_NavEKF2: only use downward facing rangefinder 2017-02-27 15:18:10 +09:00
priseborough 5cd403c0b9 AP_NavEKF2: prevent NaN if RNGFND_GNDCLEAR is zero 2017-02-15 07:04:38 +09:00
Randy Mackay fc5f4c20cd AP_NavEKF2: remove redundant check of beacon nullptr 
thanks to muramura for spotting this
 2016-12-01 14:53:26 +09:00
Randy Mackay 1f4606e48a AP_NavEKF2: protect against null beacon 2016-11-30 17:56:45 +09:00
priseborough ef03a85cd3 AP_NavEKF2: add range beacon interface and fusion method 2016-11-30 17:56:43 +09:00
Andrew Tridgell 82365f8670 AP_NavEKF2: save some memory in the position offsets in EKF2 
we don't need to copy that vector3f for every sample. A uint8_t does
the job
 2016-10-27 17:09:06 +11:00
priseborough b40016db62 AP_NavEKF2: Fix documentation errors 2016-10-27 14:54:43 +11:00
priseborough 8922861359 AP_NavEKF2: Correct optical flow data for sensor position offset 
Correction requires the body rates averaged across the flow sensor sampling interval. This data has been added to the sensor buffer.
The body rate data from the flow sensor driver does not contain the Z component, so an equivalent value sampled from the navigation IMU has been used instead.
The variable omegaAcrossFlowTime has been moved out of the class and into the only function that uses it.
 2016-10-27 14:54:43 +11:00
priseborough 064a106808 AP_NavEKF2: Get IMU accelerometer body position offset data 2016-10-27 14:54:42 +11:00