Commit Graph

200 Commits

Author SHA1 Message Date
Andrew Tridgell
a17b85c661 AP_AHRS: use vectors for ground vector complimentary filter 2013-05-13 11:27:55 +10:00
Andrew Tridgell
6f1cee6406 AP_AHRS: fixed position estimate with 2D fix or low satellite count
we should still use the GPS for position fixes when we have a low
number of satellites, but we should stop using it for velocity
estimates and attitude correction.
2013-05-07 10:52:14 +10:00
Randy Mackay
ceda7d26b0 AHRS: add correct_centrifugal and flags structure 2013-05-06 15:32:06 +09:00
Andrew Tridgell
38fc0e61c6 AP_AHRS: optimise yaw drift correction
use new vector2 cross product, and factor out the z component of a dcm
mul_transpose() to reduce the number of floating point operations for
a yaw drift correction cycle
2013-05-05 13:51:45 +10:00
Randy Mackay
ee2daf25b6 AHRS: perf improvement by caching declination vector 2013-05-05 12:58:43 +10:00
Andrew Tridgell
943a1d8c8d AP_AHRS: added AHRS_GPS_MINSATS option
if the number of visible satellites is below AHRS_GPS_MINSATS then
don't use the GPS for acceleration correction for attitude
2013-05-05 12:48:01 +10:00
Andrew Tridgell
811c2ccc11 libraries: fixes for AP_Baro_HIL 2013-05-02 15:09:05 +10:00
Andrew Tridgell
54b826a583 AP_AHRS: update for new compass API 2013-05-02 12:48:14 +10:00
Andrew Tridgell
ba83950fc4 libraries: replace constrain() with constrain_float()
this makes the type much more obvious. Thanks to Tobias for the
suggestion.
2013-05-02 10:25:40 +10:00
Andrew Tridgell
f5d6fb6216 AP_AHRS: added _kp gain reduction for catapult launch
this should reduce the tendency of aircraft to nose down hard on
initial launch at high g
2013-04-28 14:47:59 +10:00
Andrew Tridgell
fd2cd0d1c2 DCM: fixed formatting 2013-04-23 08:57:44 +10:00
jschall
610069e729 DCM: fixed airspeed bug
we incorrectly went via the wind estimate when we had a working airspeed sensor
2013-04-23 08:57:44 +10:00
Andrew Tridgell
014c9376e7 AP_AHRS: use const references where possible 2013-04-22 13:26:49 +10:00
Andrew Tridgell
7ad293e270 AP_AHRS: made a few methods const 2013-04-20 13:52:36 +10:00
Andrew Tridgell
a4d25f5a82 AHRS: removed AHRS_BARO_USE option
this option has caused users too much trouble. The vertical velocity
is too noisy from the baro
2013-04-15 10:52:31 +10:00
Andrew Tridgell
87b0fb05ce AHRS: changed default RP and YAW gain to 0.3
this reduces the impact of hard acceleration on takeoff, and reduces
the impact of GPS lag

Note that this doesn't affect copters, as they override to 0.1
2013-04-15 10:52:31 +10:00
priseborough
b63d0969b7 AP_AHRS: Addition of a first order complementary filter to AP_AHRS::groundspeed_vector
Addition of a complementary filter to estimation of the ground velocity vector for use by the L1-nav
2013-04-12 12:48:09 +10:00
Andrew Tridgell
05ecb8d8fa AP_AHRS: fixed functions that need to be virtual
functions overridden in a child class need to be marked virtual, or
you get the parent class function
2013-04-12 12:48:08 +10:00
Andrew Tridgell
ee81b0f729 AP_AHRS: added wind_correct_bearing() and groundspeed_vector()
these are very useful for navigation libraries
2013-04-12 12:48:08 +10:00
Andrew Tridgell
896fd52aa1 AP_AHRS: fixed functions that need to be virtual
functions overridden in a child class need to be marked virtual, or
you get the parent class function
2013-03-29 18:35:10 +11:00
Andrew Tridgell
8459da202c AP_AHRS: prevents compass flyaways for plane and rover
this switches to the GPS for yaw if the compass has dragged us off by
more than 45 degrees from the GPS heading, and the wind speed is less
than 80% of the ground speed.
2013-03-29 13:48:25 +11:00
Randy Mackay
24044dc0c4 AHRS: add support for GPS fix type 2D 2013-03-27 11:41:43 +09:00
Randy Mackay
3321db8dde AHRS: limit trim to 10 degrees 2013-02-19 18:50:57 +09:00
Andrew Tridgell
6119201307 AP_AHRS: ensure compass is non-NULL for set_board_orientation() 2013-01-17 17:23:34 +11:00
James Bielman
5631f865b2 Update floating point calculations to use floats instead of doubles.
- Allows use of hardware floating point on the Cortex-M4.
- Added "f" suffix to floating point literals.
- Call floating point versions of stdlib math functions.
2013-01-16 13:52:01 +11:00
Andrew Tridgell
f644a356c9 AP_AHRS: document more rotation combinations 2013-01-13 17:32:48 +11:00
Andrew Tridgell
848fc3e32d AP_AHRS: added AHRS_ORIENTATION parameter 2013-01-13 17:32:48 +11:00
rmackay9
9e5861ccaf AP_AHRS: small fix to parameter comments 2013-01-02 16:08:38 +09:00
rmackay9
77331f6538 AP_AHRS: another attempt at updating the TRIM parameter descriptions 2013-01-02 15:47:59 +09:00
rmackay9
e6c10f4f0b AP_ARHS: add description to AHRS_TRIM parameters 2013-01-02 15:44:42 +09:00
Andrew Tridgell
374af1cd14 build: change from Arduino.mk to apm.mk 2013-01-02 17:29:37 +11:00
Andrew Tridgell
3ac3aeb1b1 AHRS: fixed build on ARM 2013-01-02 14:45:09 +11:00
Andrew Tridgell
583845cc17 ahrs fixup 2013-01-02 14:45:08 +11:00
Andrew Tridgell
1b0670e67c AHRS: fixup for ARM compiler 2013-01-02 14:45:08 +11:00
rmackay9
bd0e018ca0 ArduCopter: restore auto-trim method but now use AHRS.add_trim 2013-01-02 09:20:08 +11:00
rmackay9
1f7614929f AP_AHRS: save trim to eeprom when set_trim is called 2013-01-02 09:12:17 +11:00
rmackay9
1c08f176ea AP_AHRS: add get_accel_ef method to return earth frame accelerometer values for use in ArduCopter's inertial nav and accel based throttle 2013-01-02 09:11:25 +11:00
Andrew Tridgell
e282554035 AHRS: removed some debug code 2012-12-20 14:53:23 +11:00
Andrew Tridgell
ceb3f577d8 libraries: use new math functions 2012-12-20 14:53:22 +11:00
Pat Hickey
eb530b86e8 move Arduino.mk to /mk/Arduino.mk 2012-12-20 14:52:35 +11:00
Andrew Tridgell
fc66f5594f AHRS: allow AHRS test to build with SITL 2012-12-20 14:52:34 +11:00
Andrew Tridgell
7d27e420ae AP_HAL: remove unnecessary Arduino.h includes 2012-12-20 14:52:30 +11:00
Andrew Tridgell
5c148153ac AP_AHRS: updates for new AP_Param API 2012-12-20 14:51:38 +11:00
Pat Hickey
475da4eca4 CONFIG_HAL_BOARD - test sketches fixed up, build all passes 2012-12-20 14:51:37 +11:00
Andrew Tridgell
8b6ad6d559 SITL: removed SITL_debug()
not needed any more
2012-12-20 14:51:36 +11:00
Andrew Tridgell
5840ded767 AHRS: removed constrain() defines 2012-12-20 14:51:34 +11:00
Andrew Tridgell
09e7b0b592 AHRS: removed unused variable 2012-12-20 14:51:34 +11:00
Pat Hickey
70f34656bc AP_AHRS: uart1 -> uartB fixup 2012-12-20 14:51:34 +11:00
Pat Hickey
9bf69d4e0d AP_AHRS: port to AP_HAL 2012-12-20 14:51:29 +11:00
Pat Hickey
3f1d9d7f69 AP_Param: #include <AP_Param.h> fixups for libraries & sketches
* I mostly went through with grep and added an #include <AP_Param.h> below
  every #include <AP_Common.h>. Not all of these example sketches might
  strictly need AP_Param.
2012-12-20 14:51:19 +11:00
rmackay9
24317e721b AC_PID, AP_AHRS: added descriptions to some parameters 2012-12-10 22:28:39 +09:00
Andrew Tridgell
51080d3e9e AHRS: update example for new ins interface 2012-11-30 07:15:19 +11:00
Andrew Tridgell
1dad9e4e94 AHRS: improved some more doc strings 2012-11-27 15:56:53 +11:00
Andrew Tridgell
eb1d5c2c68 AHRS: improved docs for AHRS_GPS_USE
some people are setting this to zero to prevent jitter, which results
in their plane flying off into the distance and never coming back
2012-11-27 15:41:52 +11:00
Andrew Tridgell
5a214acca3 AHRS: changed the docs for AHRS_YAW_P and AHRS_RP_P
a user had set AHRS_YAW_P to zero. Make it clear that zero is not a
good value. MichaelO will change MP to give a warning for a value
below 0.1
2012-11-19 22:50:05 +11:00
Andrew Tridgell
8561f08b2f AP_AHRS: prevent a large delta_t from affecting DCM solution
this should fix large changes in attitude directly after arming
ArduCopter
2012-11-13 15:33:10 +11:00
rmackay9
56f88821e9 AP_AHRS: fix example sketch
AP_Airspeed: fix example sketch
AP_Baro: fix example sketch
AP_Declination: fix example sketch
AP_Math: fix example sketch
2012-11-08 00:08:18 +09:00
rmackay9
83ae8e47be AP_AHRS: replace IMU with INS and add roll and pitch trim 2012-11-07 19:20:32 +09:00
Andrew Tridgell
fe47990dab AP_AHRS: removed the 6 sats min
this would put us into dead-reckoning mode
2012-11-06 14:26:49 +11:00
Andrew Tridgell
6a24bdec05 AP_AHRS: require at least 6 satellites to use the GPS for velocity
logs of a recent flight show the velocity estimate can be very poor if
the GPS can see 5 satellites or less
2012-11-05 20:07:37 +11:00
Andrew Tridgell
ea40432235 AP_AHRS: use GPS vertical velocity when available 2012-11-05 14:58:40 +11:00
rmackay9
9e3824a09b AP_AHRS: fix compile error in example sketch 2012-11-01 21:56:34 +09:00
Andrew Tridgell
00bf548f87 AHRS: limit wind speed estimate changes
sudden yaw changes can cause bad wind estimates
2012-10-11 11:51:24 +11:00
rmackay9
e33d314f1d AP_AHRS_MPU6000: resolve compiler warning re shadowing 2012-10-06 13:22:43 +09:00
rmackay9
670fcbb634 AP_AHRS_MPU6000: fixed yaw correction and added _secondary_ahrs parameter
_secondary_ahrs parameter allows mpu6000 ahrs to runin parallel with DCM.
2012-09-30 00:21:18 +09:00
rmackay9
8c6fd340d7 AP_AHRS: added scheduler parameter to init
Required by the AP_AHRS_MPU6000 class which needs to disable timed processes that could interfere with it's communication with the mpu6000
2012-09-29 13:51:21 +09:00
rmackay9
41fbb19cf5 AP_InertialSensor_MPU6000: replaced _cs_pin parameter with #define and saved 1 byte of memory
Updated ArduCopter, ArduPlane and example sketches in AP_InertialSensor, AP_IMU and AP_AHRS libraries because they no longer need to pass in cs_pin to the constructor
2012-09-28 19:21:59 +09:00
Andrew Tridgell
ccf8ba3ce9 DCM: limit the contribution of the baro to vertical acceleration
limit to a max of 0.5g
2012-09-20 17:34:32 +10:00
Andrew Tridgell
458a42654b DCM: disable use of baro for vertical accel by default
this has caused problems with too many users
2012-09-20 17:34:32 +10:00
Michael Oborne
94f956a0ca fix AP attitude hil - with randys help 2012-09-15 16:47:18 +08:00
rmackay9
1c9fe3b1b6 AP_AHRS: fix to allow example sketch to compile 2012-09-13 16:45:52 +09:00
Andrew Tridgell
fba1692d69 AHRS: added AHRS_BARO_USE parameter
allow disabling of the use of the barometer for vertical acceleration
compensation
2012-09-12 14:42:04 +10:00
Andrew Tridgell
de28cc8b28 AHRS: added AHRS_WIND_MAX option
this allows APM to cope better with airspeed sensor failure, but
ensuring airspeed stays within AHRS_WIND_MAX of ground speed
2012-09-08 11:37:07 +10:00
Andrew Tridgell
2be785899b AHRS: added airspeed_estimate() function
this allows the APM code to use an airspeed estimate for navigation
2012-08-25 17:49:26 +10:00
Andrew Tridgell
8b53f1272a AHRS: new functions to support APM_Control library 2012-08-22 12:42:37 +10:00
uncrustify
e17fcbd9cb uncrustify libraries/AP_AHRS/AP_AHRS_HIL.h 2012-08-21 19:19:51 -07:00
uncrustify
af588679b9 uncrustify libraries/AP_AHRS/AP_AHRS.h 2012-08-21 19:19:51 -07:00
uncrustify
8c0e4f3987 uncrustify libraries/AP_AHRS/AP_AHRS_MPU6000.h 2012-08-21 19:19:51 -07:00
uncrustify
bc80148c75 uncrustify libraries/AP_AHRS/AP_AHRS_DCM.h 2012-08-21 19:19:51 -07:00
uncrustify
31a4442904 uncrustify libraries/AP_AHRS/AP_AHRS_DCM.cpp 2012-08-21 19:19:51 -07:00
uncrustify
d6d7606c84 uncrustify libraries/AP_AHRS/AP_AHRS_HIL.cpp 2012-08-21 18:59:34 -07:00
uncrustify
9e4e08699d uncrustify libraries/AP_AHRS/AP_AHRS_MPU6000.cpp 2012-08-21 18:59:34 -07:00
uncrustify
6327305116 uncrustify libraries/AP_AHRS/examples/AHRS_Test/AHRS_Test.pde 2012-08-21 18:59:13 -07:00
Andrew Tridgell
6d28b3519f AHRS: removed AP_AHRS_Quaternion
this AHRS backend is causing compiler errors with the Arduino build
environment on windows. The quaternion AHRS backend is currently not
being developed/supported anyway. We can resurrect it if someone wants
to start developing it again.
2012-08-22 10:41:31 +10:00
Andrew Tridgell
2985de279f AHRS: fixed duplicate gps_use variable in DCM 2012-08-21 20:17:03 +10:00
Andrew Tridgell
134cd51d17 AHRS: moved var_info[] into top level AP_AHRS class 2012-08-21 15:58:09 +10:00
Andrew Tridgell
ac72db8f00 AHRS: added set_fast_gains() method
this will be used by arducopter on the ground
2012-08-21 15:38:06 +10:00
Andrew Tridgell
14cdbd36cb AHRS: check for bad values in the error before they can affect DCM
this should fix the DCM renorm errors in autotest, probably caused by
bad climb rates
2012-08-18 13:54:11 +10:00
Andrew Tridgell
d9cc967508 AHRS: force an extra read of the compass on startup
the first read from the compass can be bad. This ensures we have a
good value when getting the initial AHRS yaw.

Thanks to Randy and Jason for the bug report!
2012-08-17 17:57:39 +10:00
Andrew Tridgell
73dcbc24c3 Quaternion: we no longer support acceleration in the GPS driver
remove the linear acceleration compensation code
2012-08-15 20:07:53 +10:00
Andrew Tridgell
9b4b7997b6 AHRS: added ahrs.yaw_initialised()
this allows the high level code to know if the AHRS driver has a
reliable yaw estimate
2012-08-15 12:39:34 +10:00
Andrew Tridgell
48e275e22d AHRS: avoid a compiler bug in quaternion code
Having _wind in the AP_AHRS class causes a register allocation error
when building the Quaternion code with some versions of avr-gcc. Quite
bizarre.
2012-08-13 11:08:10 +10:00
Andrew Tridgell
19a5d11669 AHRS: use airspeed for wind in forward flight
when not turning we can use the airspeed sensor directly to calculate
the wind speed.
2012-08-12 10:54:25 +10:00
Andrew Tridgell
f5b7ae213c AHRS: added AHRS_GPS_USE parameter
this allows for the GPS to be disables for position updates, which
allows for testing dead-reckoning
2012-08-11 22:06:03 +10:00
Andrew Tridgell
779dacfd24 AHRS: added wind estimation code
this allows us to estimate the wind while we have GPS lock, then use
that estimate in the long term dead reckoning
2012-08-11 22:06:03 +10:00
Andrew Tridgell
af4071894e AHRS: added long-term dead-reckoning
this uses airspeed (if available) or last GPS ground speed to update
our position estimate in AHRS
2012-08-11 12:00:31 +10:00
Andrew Tridgell
f95b06a880 AHRS: make airspeed sensor available to AHRS
this will be used for long term dead-reckoning
2012-08-11 08:57:32 +10:00
Andrew Tridgell
b01907cf23 ACM: fixed HIL build 2012-08-11 08:34:16 +10:00
Jason Short
52b2aacf28 AHRS DCM: FOrmatting 2012-08-09 16:59:43 -07:00
Andrew Tridgell
898a5af692 AP_Param: update AHRS for new constructor syntax 2012-08-08 12:11:57 +10:00