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596 Commits

Author SHA1 Message Date
Andy Piper 099d6aa72e AP_NavEKF3: add filter reset when vehicle is idle for too long 2021-01-15 15:47:20 +11:00
chobitsfan 26a3a02c81 AP_NavEKF3: use posxy_source in all places 2021-01-14 16:49:12 +09:00
chobits e73d28fe19 AP_NavEKF3: remove redundant extnav code 2021-01-12 21:56:36 +09:00
Andrew Tridgell 59fa794818 AP_NavEKF3: constrain vertical error 
this prevents a floating point exception with external AHRS
 2021-01-05 21:13:12 +11:00
Randy Mackay 647c568ab9 AP_NavEKF3: out-of-date comments removed 
GPS, Static and ExtNav yaw buffers have been separated
 2021-01-05 10:58:06 +11:00
Randy Mackay 27c998ad94 AP_NavEKF3: rename source and yawFusionMethod from EXTERNAL to GPS 2021-01-05 10:58:06 +11:00
Randy Mackay c14b4a8b6c AP_NavEKF3: add support for GSF as yaw source 2021-01-05 10:58:06 +11:00
Randy Mackay 5891c6ace8 AP_NavEKF3: separate GPS yaw from ExtNav yaw 2021-01-05 10:58:06 +11:00
Randy Mackay 6850b48ea1 AP_NavEKF3: add comments for yaw sensor variables 2021-01-05 10:58:06 +11:00
Andrew Tridgell e747edbcf2 AP_NavEKF3: fixed init order for scheduler 
this can impact replay of EKF2
 2021-01-02 10:30:26 +11:00
Randy Mackay 39be85cef4 AP_NavEKF3: integrate Source loss of init 2020-12-21 16:56:38 +09:00
Peter Barker 6dfd2f2ff9 AP_NavEKF3: use use_EKFGSFYaw to reduce code duplication 2020-12-17 16:00:29 +09:00
Randy Mackay a2cca60beb AP_NavEKF3: constify EKFGSF_getYaw 2020-12-16 19:18:29 +11:00
Randy Mackay 0c3fcfd9d6 AP_NavEKF3: add missing break to case statements 2020-12-16 19:18:29 +11:00
Randy Mackay 9cb529cfd6 AP_NavEKF3: minor formatting fix 
also replace tab with spaces
 2020-12-16 19:18:29 +11:00
Paul Riseborough 908b348c31 AP_NavEKF3: Fix typo in enum label 2020-12-15 19:29:16 +11:00
Randy Mackay e819dbdd64 AP_NavEKF3: add EKFGSF_getYaw to reduce duplicate code 2020-12-15 19:29:16 +11:00
Randy Mackay c2edae905f AP_NavEKF3: simplify logic when updating yawAngDataStatic 2020-12-15 19:29:16 +11:00
Randy Mackay 843ddb4fdc AP_NavEKF3: minor format fix 2020-12-15 19:29:16 +11:00
Paul Riseborough a9e76d44af AP_NavEKF3: Clean up yaw fusion logic 2020-12-15 19:29:16 +11:00
Paul Riseborough ccfd89240b AP_NavEKF3: Fix error in calculation of static 312 order yaw reference 2020-12-15 19:29:16 +11:00
Dr.-Ing. Amilcar do Carmo Lucas f77ab30f7a Revert "AP_NavEKF3: Remove unsupported parameter unit descriptions" 
This reverts commit 4f4a2f446d.
Makes more sense to add those to the list of supported units
 2020-12-15 18:22:36 +11:00
Paul Riseborough 8f32430294 AP_NavEKF3: Fix white spaces 2020-12-11 15:21:41 +11:00
Paul Riseborough bdc202378a AP_NavEKF3: fix white space 2020-12-11 15:21:41 +11:00
Paul Riseborough ed17d8e48f AP_NavEKF3: Improve parameter display names 2020-12-11 15:21:41 +11:00
Paul Riseborough 171f0b399f AP_NavEKF3: Remove commented code 2020-12-11 15:21:41 +11:00
Andrew Tridgell b86c014400 AP_NavEKF3: rename drag parameters to start with EK3_DRAG_ 2020-12-11 15:21:41 +11:00
Paul Riseborough 47d4506e68 AP_NavEKF3: Add drag and sideslip innovation logging 2020-12-11 15:21:41 +11:00
Paul Riseborough 4884476c09 AP_NavEKF3: Formatting and comment fixes 2020-12-11 15:21:41 +11:00
Andrew Tridgell be4d10a95e AP_NavEKF3: rework parameter handling 
and fixed indentation
 2020-12-11 15:21:41 +11:00
Paul Riseborough 5da62aeaa2 AP_NavEKF3: Fix CI build errors 2020-12-11 15:21:41 +11:00
Paul Riseborough 0d2c235027 AP_NavEKF3: Fix #define typo 2020-12-11 15:21:41 +11:00
Paul Riseborough ab05e8ed4a AP_NavEKF3: Update param descriptions 2020-12-11 15:21:41 +11:00
Paul Riseborough 4f4a2f446d AP_NavEKF3: Remove unsupported parameter unit descriptions 2020-12-11 15:21:41 +11:00
Paul Riseborough c9ab4b18b0 AP_NavEKF3: Add multicopter wind estimation 2020-12-11 15:21:41 +11:00
Andrew Tridgell ac4a05ffbf AP_NavEKF3: fixed null dereference of airspeed 
this caused a segfault in replay
 2020-12-11 14:22:46 +11:00
Andrew Tridgell 2071a19a40 AP_NavEKF3: only fuse airspeed if healthy 2020-12-11 09:59:49 +11:00
Peter Barker 58f6570755 AP_NavEKF3: stop using QUAT_* defines from AP_Logger/LogStructure.h 
The EKFs logging is independant so we can kill EKF2...

Also use correct structure for logging XKF1; these structures were
identical.
 2020-12-08 11:30:10 +11:00
chobits 013b39d2a6 AP_NavEKF3: fix ext nav vel timestamp cal 2020-12-07 08:54:42 +09:00
Peter Barker 287e9350a5 AP_NavEKF3: move log message IDs in from AP_Logger LogStructure 2020-12-03 19:22:26 +11:00
Peter Barker 79109458c2 AP_NavEKF3: move EKF3 logging structures into EKF3 LogStructure.h 2020-12-03 19:22:26 +11:00
Andrew Tridgell bdba430e55 AP_NavEKF3: save memory on beacon debug structure 
only allocate when beacons are enabled. This relies on a guarantee in
the DAL that the beacon count cannot change
 2020-12-01 10:53:08 +11:00
Andrew Tridgell bb32f1a397 AP_NavEKF3: avoid initialising unused ring buffers 
this assumes the nav sources are treated as reboot required
 2020-12-01 10:53:08 +11:00
Peter Barker e972fb31b1 AP_NavEKF3: remove unused variables 2020-12-01 10:40:09 +11:00
Peter Barker 0529ddcd67 AP_NavEKF3: move badMagYaw onto stack 2020-12-01 10:40:09 +11:00
Peter Barker 2885026bba AP_NavEKF3: move tasHealth to be a stack variable 2020-12-01 10:40:09 +11:00
Peter Barker b79a26135c AP_NavEKF3: move posvel fusion health booleans to be on the stack 2020-12-01 10:40:09 +11:00
Peter Barker 2d25149e2e AP_NavEKF3: move global state to be on the stack 2020-12-01 10:40:09 +11:00
Andrew Tridgell d242339f2e AP_NavEKF3: added have_vz flag to GPS buffer data 
this ensures that we record GPS vertical velocity status for every
sample correctly
 2020-12-01 10:33:50 +11:00
Andrew Tridgell 80f7906744 AP_NavEKF3: removed inhibitGps and inhibitGpsVertVel options 
these were unused
 2020-12-01 10:33:50 +11:00
Andrew Tridgell 603e0c090d AP_NavEKF3: don't reset EKx_GPS_TYPE when GPS has no vertical velocity 
setting the parameter to 1 causes the following issues:

 - the GPS may not have vertical velocity at the time the parameter
   set happens, but may get it later when the GPS is fully configured

 - we may switch between GPS modules which do/don't have vertical
   velocity

 - the user may download parameters after the set(1), and end up with
   incorrect parameters they may later load onto the vehicle,
   permanently disabling use of vertical velocity
 2020-12-01 10:33:50 +11:00
Peter Barker 52b8b95a72 AP_NavEKF3: rearrange readGPSData to remove some nesting 2020-11-30 11:51:12 +11:00
Randy Mackay 4cd1c3cfde AP_NavEKF3: param conversion loses config_error 
config_error should only be run as part of setup because it may never return
 2020-11-27 08:20:07 +09:00
Randy Mackay adfc92523b AP_NavEKF3: add configuredToUseGPSForPosXY 2020-11-25 21:00:07 +11:00
Andrew Tridgell 7eea13f86f AP_NavEKF3: fixed build of standalone replay link test 
parameter conversion not needed for replay
 2020-11-24 20:46:37 +11:00
Peter Barker 200b085eea AP_NavEKF3: move XKY0 and XKY1 to be normal log structures (from Log_Write) 2020-11-22 20:47:29 +11:00
Peter Barker e1a033b296 AP_NavEKF3: make logging a core concern 
Also dissolve some methods only used for logging
 2020-11-22 20:47:29 +11:00
Peter Barker 914629351f AP_NavEKF3: use scalar rather than array for state-prediction-allowed 
EKF2 needs this for choosing alternate cores.  EKF3 does not.
 2020-11-22 14:09:48 +11:00
Paul Riseborough 8561f5239d AP_NavEKF3: Fix bug preventing yaw alignment to EKF-GSF estimate 2020-11-21 12:56:10 +11:00
Andrew Tridgell 1e4b1d7563 AP_NavEKF3: convert to using common buffer classes 
this saves a considerable amount of flash
 2020-11-20 21:56:32 +11:00
Randy Mackay d1983b0b77 AP_NavEKF3: fixup source param conversion 
shorten param conversion config error
if gps and optical flow are enabled we default SRC2_VELXY to optflow
convert_params run from InitialiseFilter
ensure param conversion only run once
 2020-11-20 16:43:44 +09:00
Randy Mackay 04e3623620 AP_NavEKF3: improve MAG_CAL vs EK3_SRCn_YAW checks 
MAG_CAL param description include deprecated values
Pre-arm check of MAG_CAL using deprecated values
effective_magCal interprets 5 (was EXTERNAL_YAW) as Never, 6 (was EXTERNAL_YAW_FALLBACK) as WhenFlying
Update comments in param conversion from MAG_CAL to EK3_SRC1_YAW
 2020-11-20 16:43:44 +09:00
Andrew Tridgell 36c946113d AP_NavEKF3: handle compass fallback in yaw source reset 
if we get to this point we must be using the compass fallback logic,
and should do the reset
 2020-11-20 16:43:44 +09:00
Randy Mackay 8895d20c45 AP_NavEKF3: rename setPosVelYawSourceSet 2020-11-20 16:43:44 +09:00
Randy Mackay 5eb3875ebb AP_NavEKF3: rename posxy_source_last and posxy_source_reset 2020-11-20 16:43:44 +09:00
Randy Mackay f88364d653 AP_NavEKF3: use_compass minor order fixup 2020-11-20 16:43:44 +09:00
Randy Mackay b475f01b25 AP_NavEKF3: update comments 2020-11-20 16:43:44 +09:00
Randy Mackay 0f8d0ef11b AP_NavEKF3: move sources to 2nd bank of parameters 2020-11-20 16:43:44 +09:00
Randy Mackay 33b6212cce AP_NavEKF3: rename _sources to sources 2020-11-20 16:43:44 +09:00
Randy Mackay 9716b09cad AP_NavEKF3: minor indenting fix 2020-11-20 16:43:44 +09:00
Randy Mackay 6daaa06317 AP_NavEKF3: integrate AP_NavEKF_Source::useVelXYSource 
also integrate useVelZSource
 2020-11-20 16:43:44 +09:00
Andrew Tridgell 72ee7d15e1 AP_NavEKF3: fixup for AP_DAL 2020-11-20 16:43:44 +09:00
Randy Mackay 73835f0c11 AP_NavEKF3: pre_arm_check includes sources 2020-11-20 16:43:44 +09:00
Randy Mackay 6c0bb6a198 AP_NavEKF3: add convert_params for source 2020-11-20 16:43:44 +09:00
Randy Mackay 849e94cc24 AP_NavEKF3: call sources align inactive sources 2020-11-20 16:43:44 +09:00
Randy Mackay ba9f60abc7 AP_NavEKF3: add getVelInnovationsAndVariancesForSource 2020-11-20 16:43:44 +09:00
Randy Mackay 58aa6086df AP_NavEKF3: always calculate GPS innovations and variances 2020-11-20 16:43:44 +09:00
Randy Mackay e7e91b1c3b AP_NavEKF3: always calculate extNav innovations and variances 2020-11-20 16:43:44 +09:00
Randy Mackay 6b2b5c4ca0 AP_NavEKF3: add CalculateVelInnovationsAndVariances 2020-11-20 16:43:44 +09:00
Randy Mackay 2505fd5c1c AP_NavEKF3: body and wheel odometry check source 2020-11-20 16:43:44 +09:00
Randy Mackay 1263648d88 AP_NavEKF3: beacon fusion checks source 2020-11-20 16:43:44 +09:00
Randy Mackay 8a56ce49be AP_NavEKF3: optical flow fusion checks source 2020-11-20 16:43:44 +09:00
Randy Mackay 4cadaa5194 AP_NavEKF3: readyToUseOptFlow, Beacon, ExtNav check source 2020-11-20 16:43:44 +09:00
Randy Mackay faed58a027 AP_NavEKF3: integrate Source for yaw 2020-11-20 16:43:44 +09:00
Randy Mackay 8931e50166 AP_NavEKF3: integrate Source for alt 2020-11-20 16:43:44 +09:00
Randy Mackay c21d58ebea AP_NavEKF3: integrate Source for position 2020-11-20 16:43:44 +09:00
Andrew Tridgell 4c606a30bb AP_NavEKF3: use common structure names 2020-11-17 13:45:07 +11:00
Paul Riseborough aaf558f593 AP_NavEKF3: Add velocity innovation check to use of EKF-GSF yaw 
Only apply to non fly forward vehicle, eg copters, because magnitude of velocity innovation produced by plane launches is TBD.
 2020-11-16 16:01:13 +11:00
Paul Riseborough db86a5acc8 AP_NavEKF3: Don't update yaw estimator with bad GPS 2020-11-16 16:01:13 +11:00
Andrew Tridgell 5686dafeef AP_NavEKF3: fixed logged core for GSF messages 2020-11-16 10:28:43 +11:00
Andrew Tridgell 03f2e853ce AP_NavEKF3: fixed memory corruption on push before init 
this fixes a bug that happens with VISION_SPEED_ESTIMATE from a
companion computer, which may come in before the EKF buffers are
allocated. That causes a push to an uninitialised ringbuffer which
triggers memory corruption

found using the new memory guard system
 2020-11-15 15:42:48 +11:00
Andrew Tridgell c14d19be68 AP_NavEKF3: fixed gcc 9.3 build error 
gcc 9.3 doesn't like the use of get_accel(i) when array length is 1
 2020-11-13 14:30:11 +11:00
Andrew Tridgell 0bc77a3baf AP_NavEKF3: fixed whitespace 2020-11-10 16:15:45 +11:00
Andrew Tridgell 6ee1b23d28 AP_NavEKF3: removed use of another lanes gyro in optflow takeoff detection 
as discussed with Paul
 2020-11-10 16:15:45 +11:00
Andrew Tridgell 6fe05a9ab6 AP_NavEKF3: restore XKTV message 2020-11-10 16:15:45 +11:00
Andrew Tridgell f5275fd0ad AP_NavEKF3: fixed use of pointers in ringbuffers 
these don't work with AP_DAL
 2020-11-10 16:15:45 +11:00
Andrew Tridgell eaa8474563 AP_NavEKF3: cope with INS_MAX_INSTANCES below 3 2020-11-10 16:15:45 +11:00
Andrew Tridgell 9b81c5a1e0 AP_NavEKF3: use dal reference in EKF backends 
saves a bit of flash space
 2020-11-10 16:15:45 +11:00
Andrew Tridgell 1bdf6173ec AP_NavEKF3: removed have_ekf_logging 2020-11-10 16:15:45 +11:00
Andrew Tridgell 21dfdc2192 AP_NavEKF3: use DAL for body frame odometry 2020-11-10 16:15:45 +11:00
Andrew Tridgell a0de6c620f AP_NavEKF3: use selected GPS for gps_yaw_deg() 
more than one GPS could provide yaw
 2020-11-10 16:15:45 +11:00
Andrew Tridgell f4c3d7286c AP_NavEKF3: support replay with wheel odomotry 2020-11-10 16:15:45 +11:00
Andrew Tridgell e87f98066f AP_NavEKF3: support replay with external navigation data 2020-11-10 16:15:45 +11:00
Andrew Tridgell 7bbbbd314c AP_NavEKF3: added optflow support for AP_DAL 2020-11-10 16:15:45 +11:00
Andrew Tridgell 31091d6307 AP_NavEKF3: use ekf_low_time_remaining for core scheduling 2020-11-10 16:15:45 +11:00
Andrew Tridgell f3c3778169 prevent duplicate EKF logging 
vehicle code sometimes tries to log the same data twice
 2020-11-10 16:15:45 +11:00
Andrew Tridgell 096aab9388 AP_NavEKF3: convert to use AP_DAL for new replay structure 
Co-authored-by: Peter Barker <pbarker@barker.dropbear.id.au>
 2020-11-10 16:15:45 +11:00
Randy Mackay 2681d3afe2 AP_NavEKF3: simplify alignYawAngle 2020-11-03 11:00:01 +11:00
Peter Barker fc49b55b85 AP_NavEKF3: make coreBetterScore const 2020-11-03 10:39:35 +11:00
Randy Mackay b726630ef4 AP_NavEKF3: pos timeout or glitch does not reset vel if fusing successfully 
vel is not reset if GPS velocity, optical flow, visual odometry or wheel
encoders are successfully being fused
 2020-10-28 19:06:53 +11:00
Randy Mackay 3b38aa6d7b AP_NavEKF3: GPS change pos reset uses ResetPositonNE and ResetPositionD 
Using these existing functions removes some code duplicate
non-functional change
 2020-10-28 19:03:34 +11:00
Randy Mackay 7b898ee001 AP_NavEKF3: minor comment and format fixes 2020-10-28 12:17:40 +09:00
Paul Riseborough f2af2b3458 AP_NavEKF3: Initialise tiltErrorVariance class variable 2020-10-26 11:03:50 +11:00
Paul Riseborough 43386a8eea AP_NAvEKF3: Use a const reference 2020-10-26 11:03:50 +11:00
Paul Riseborough 64a3d8fe4e AP_NavEKF3: Update documentation 2020-10-26 11:03:50 +11:00
Paul Riseborough 6c7820dd8d AP_NavEKF3: Add verification of tiltErrorVariance() method in SITL 2020-10-26 11:03:50 +11:00
Paul Riseborough 90e928c32a AP_NavEKF3: Re-tune tilt alignment check 
New tilt error variance estimate is more accurate and larger than before.
 2020-10-26 11:03:50 +11:00
Paul Riseborough 16ae75a681 AP_NavEKF3: Consolidate and log tilt error variance calculation 2020-10-26 11:03:50 +11:00
Paul Riseborough 8a88dd23a2 AP_NavEKF3: Add missing generated code file for yaw fusion 2020-10-26 11:03:50 +11:00
Paul Riseborough 69632336e1 AP_NavEKF3: Remove singularity in yaw fusion at +-90deg yaw 
Uses sympy derivation
 2020-10-26 11:03:50 +11:00
Paul Riseborough 4e41e9f5f1 AP_NavEKF3: Ensure consistent use of 312 or 321 rotation order 
Prevents possibility of a differnt sequence being used to calculate the yaw and application of the yaw to the quaternions
 2020-10-26 11:03:50 +11:00
Paul Riseborough fa10d114e4 AP_NavEKF3: Fix yaw drift after yaw reset at +-90 deg pitch 
Use existing covariance prediction code to set quaternion state covariances.
Assumes tilt error is 3 deg 1-sigma.
 2020-10-26 11:03:50 +11:00
Paul Riseborough 73d5ca5ad3 AP_NavEKF3: Fix yaw drift after yaw reset at +-90 deg pitch 
Use existing covariance prediction code to set quaternion state covariances.
Assumes tilt error is 3 deg 1-sigma.
TODO derive and add function that calculates tilt error variance.
 2020-10-26 11:03:50 +11:00
Paul Riseborough a97d030e4b AP_NavEKF3: Reset earth field variances when starting mag field estimation 2020-10-26 11:03:50 +11:00
Paul Riseborough 9168d0cd19 AP_NavEKF3: Initialise mag field variances to non zero values 2020-10-26 11:03:50 +11:00
Paul Riseborough 0b96f046c2 AP_NavEKF3: Unblock initial yaw alignment message 2020-10-26 11:03:50 +11:00
Paul Riseborough f81abd73d6 AP_NavEKF3: Update covariance prediction to yse SymPy generated equations 
Saves flash and variable space.
 2020-10-26 11:03:50 +11:00
Andrew Tridgell a4716fb9bf AP_NavEKF3: fixed multi-core yaw reset 
thanks to Alex Burka for finding this
 2020-10-24 19:35:30 +11:00
Andrew Tridgell fcccdcc936 AP_NavEKF3: fixed bug in external yaw for fixed wing 
when we are on the ground we should not chang to AID_NONE if we have
an external yaw source

this fixes an EKF3 error loop on the ground found by Michael
 2020-10-24 13:50:33 +11:00
Randy Mackay c3fd82b6d7 AP_NavEKF3: minor spelling fix 2020-10-24 12:35:58 +11:00
Randy Mackay 2f1ae29a9c AP_NavEKF3: extnav data gets corrected boolean 
CorrectExtNavForSensorOffset and CorrectExtNavVelForSensorOffset use
corrected boolean to avoid correcting twice
 2020-10-24 12:35:58 +11:00
Randy Mackay a16de76f57 AP_NavEKF3: correct extnav position as it is recalled from the buffer 
This makes extnav position correction consistent with the velocity correction
 2020-10-24 12:35:58 +11:00
Randy Mackay 71487e9c10 AP_NavEKF3: gps_elements gets corrected flag 
CorrectGPSForAntennaOffset uses this flag to ensure position and velocity are only corrected once
 2020-10-24 08:49:33 +09:00
Randy Mackay 3d4e1cd5c5 AP_NavEKF3: CorrectGPSForAntennaOffset always corrects vel 2020-10-24 08:49:33 +09:00
Randy Mackay e25579cc00 AP_NavEKF3: correct GPS for position as it is recalled from buffer 2020-10-24 08:49:33 +09:00
Peter Barker 0496ecc4f6 AP_NavEKF2: remove unused state variables 2020-10-22 08:47:08 +11:00
Peter Barker a1e7c91f8e AP_NaveEKF3: reduce code duplication in setup_core 
Less code.

Saves 40 bytes on PixRacer
 2020-10-22 08:47:08 +11:00
Randy Mackay e4056086e0 AP_NavEKF3: minor format and spelling fixes 2020-10-21 13:54:22 +09:00
Randy Mackay 231a958e51 AP_NavEKF3: minor comment fix 2020-10-21 11:40:35 +09:00
Randy Mackay e4ccd21dd7 AP_NavEKF3: consolidate extNav height source timeouts 2020-10-20 17:11:26 +09:00
Randy Mackay 6989a28bfc AP_NavEKF3: allow alt from other sources when using ExtNav 
also allows using ExtNav alt when not using it for XY position
removes redundant and incorrect setting of activeHgtSource from ExtNav
which was always being overwritten by the correct value later in selectHeightForFusion
 2020-10-20 17:11:26 +09:00
Randy Mackay 0cebde0632 AP_NavEKF3: minor restructure of how fusePosData and fuseVelData are set 
this non-functional change slightly reduces the number of places we set these variables
 2020-10-20 17:11:26 +09:00
Peter Barker ef505df78a AP_NavEKF3: remove unused quat2Tbn method 2020-10-20 11:40:54 +11:00
Peter Barker 0eafe4b662 AP_NavEKF3: remove dangling method declarations 2020-10-20 11:40:54 +11:00
Peter Barker 83d784c22d AP_NavEKF3: fix includes 2020-10-20 11:40:54 +11:00
Peter Barker 3dc67f09fd AP_NavEKF3: remove unused innovationIncrement and lastInnovation 2020-10-20 11:24:34 +11:00
Randy Mackay eeb1a1846c AP_NavEKF3: replace prearm_healthy with pre_arm_check 2020-10-07 11:53:07 +11:00
Randy Mackay f5a04fd1a3 AP_NavEKF3: shorten buffer size send_text message length 2020-09-29 08:57:52 +09:00
Randy Mackay 7398529f6b AP_NavEKF3: minor format fix 2020-09-28 20:57:39 +09:00
Andrew Tridgell 8a4b0f858a AP_NavEKF3: reset body mag variances at key points 
we need to reset the body mag variances if we change sensors or if we
are starting 3D fusion. When not doing 3D fusion we zero the
variances, so they must be initialised again when we restart
fusion. This fixes a bug in handling the variances on a 2nd flight
 2020-09-20 09:25:57 +10:00