Commit Graph

1364 Commits

Author SHA1 Message Date
Andrew Tridgell 89b4a9f4ed Quaternion: use gyro drift value from sensor driver 2012-03-10 10:34:34 +11:00
Andrew Tridgell fd74414884 Quaternion: go back to the full update_MARG()
the separate drift controller is too erratic on yaw hold to be usable
at the moment
2012-03-10 10:34:34 +11:00
Andrew Tridgell 1002bbcbfe SITL: cleanup the gyro drift calculations
use units that are more easily understood
2012-03-10 10:34:34 +11:00
Andrew Tridgell ad21913605 Quaternion: make the quaternion test more generic
works with DCM too
2012-03-10 10:34:33 +11:00
Andrew Tridgell a889135e78 Quaternion: update to get_gyro_drift() interface 2012-03-10 10:34:33 +11:00
Andrew Tridgell e0cc9c93a1 Quaternion: removed some unused variables 2012-03-10 10:34:33 +11:00
Andrew Tridgell b67b0afd10 DCM: separate out the omega_yaw_P from omega_P
this cleans up the separation of drift rates and proportional
correction from yaw source and accelerometers, allow the yaw
to run at a different rate to the accel correction
2012-03-10 10:34:33 +11:00
Andrew Tridgell f4b1dae7cf IMU: added get_gyro_drift_rate() interface
this just calls down to the InertialSensor layer
2012-03-10 10:34:33 +11:00
Andrew Tridgell f46fba54dc AP_InertialSensor: added a get_gyro_drift_rate() interface
this returns the expected max drift rate for the particular type of
gyro being used
2012-03-10 10:34:33 +11:00
Andrew Tridgell 9e07fa3af6 DCM: removed the limit on linear acceleration
we get linear accelerations of more than 1g when turning corners
2012-03-10 10:34:33 +11:00
Andrew Tridgell ab1aec0f77 Quaternion: minor tuning 2012-03-10 10:34:33 +11:00
Andrew Tridgell e470bf2354 DCM: minor tuning based on testing my quad 2012-03-10 10:34:33 +11:00
Andrew Tridgell 97faa47ba6 SITL: make the yaw match the APM conventions 2012-03-10 10:34:33 +11:00
Andrew Tridgell d1713bd2fb SITL: fixed the pwm output on startup 2012-03-10 10:34:33 +11:00
Andrew Tridgell 8b37790bd1 Quaternion: code cleanups and added comments 2012-03-10 10:34:32 +11:00
Andrew Tridgell f5e5ccff6a DCM: code cleanup and added more comments 2012-03-10 10:34:32 +11:00
Andrew Tridgell e2b2c9181e Quaternion: bumb up gyro drift limit to match DCM 2012-03-10 10:34:32 +11:00
Andrew Tridgell 2b6fae6e16 ADC: removed the ADC level accel smoothing
the quaternion code does a better job of handling this noise than this
filter does
2012-03-10 10:34:32 +11:00
Andrew Tridgell 8ad6b5f4d1 Quaternion: separate out drift correction from main updates 2012-03-10 10:34:32 +11:00
Andrew Tridgell ff4f7ccc65 InertionSensor: update for new Ch6() interface 2012-03-10 10:34:32 +11:00
Andrew Tridgell d1976449fd IMU: fixed a warning 2012-03-10 10:34:32 +11:00
Andrew Tridgell e9f35bfa7f GPS: expose last_fix_time 2012-03-10 10:34:32 +11:00
Andrew Tridgell 17daa2f31c Compass: change last_update to be in microseconds 2012-03-10 10:34:32 +11:00
Andrew Tridgell 404a4e4896 ADC: use floats for ADC averaging
this costs almost nothing and improved accel/gyro calibration
2012-03-10 10:34:32 +11:00
Andrew Tridgell 4c6afa36cb DCM: removed update_DCM_fast
this combines the functionality of the 'fast' DCM with the normal one,
and also speeds up both the yaw drift correction and the matrix update
code
2012-03-10 10:34:31 +11:00
Andrew Tridgell 2c279639a3 AP_IMU: fixed led flashing in gyro cal
thanks Pat!
2012-03-10 10:34:31 +11:00
Andrew Tridgell b39323bf1b AP_Math: expanded the math test suite 2012-03-10 10:34:31 +11:00
Andrew Tridgell a8fd31a5e1 AP_Math: added quaternion->matrix and earth frame routines
this will be used for 3d acceleration
2012-03-10 10:34:31 +11:00
Andrew Tridgell d3dc5bd751 AP_Math: better way of handling safe_sqrt()
better to test the result, than predict it
2012-03-10 10:34:31 +11:00
Andrew Tridgell b273df0725 SITL: avoid parent pid code on cygwin
this causes problems on windows
2012-03-10 10:34:31 +11:00
Andrew Tridgell e1ff9a641b SITL: prevent nested timer interrupts 2012-03-10 10:34:31 +11:00
Andrew Tridgell d11aab610d Quat: test patch for michael 2012-03-10 10:34:31 +11:00
Andrew Tridgell a954f68f27 Quaternion: added NaN paranoid checking
this is for Michael to run
2012-03-10 10:34:30 +11:00
Andrew Tridgell d24b055b66 Math: added comment on quaternion constructor 2012-03-10 10:34:30 +11:00
Andrew Tridgell 1f5095e722 Math: added is_inf() on vector3f 2012-03-10 10:34:30 +11:00
Andrew Tridgell 89a10c584d Quaternion: added more numerical safety in the quaternion code
prevent infinities from creeping in and prevent large drift changes
2012-03-10 10:34:30 +11:00
Andrew Tridgell f2e6714598 AP_Math: added quaternion helper functions and a test suite 2012-03-10 10:34:30 +11:00
Andrew Tridgell f71311fdc0 Quaternion: fix the gyro bias in centripetal and remove smoothing
the centripetal code needs to take account of the current gyro
bias.

It turned out that the accel and gyro smoothing was causing
significant control lag, and we're better off just letting the
quaternion code handle it via its own smoothing parameters
2012-03-10 10:34:30 +11:00
Andrew Tridgell 76736792f8 SITL: disable interrupts during register updates
this may prevent bogus mode channel reads
2012-03-10 10:34:30 +11:00
Andrew Tridgell e445a455d0 Quaternion: use GPS to correct for linear acceleration
this gives much better pitch estimates. We should do this with the
airspeed sensor if available.
2012-03-10 10:34:30 +11:00
Andrew Tridgell 1ea1b500a6 Quaternion: don't update if we have a very long deltat
this can be caused by stopping the system in a debugger
2012-03-10 10:34:30 +11:00
Andrew Tridgell 8b73166605 Compass: fixed last_update time for HIL compass 2012-03-10 10:34:30 +11:00
Andrew Tridgell 2969e16f7d RC: disable interrupts when reading the RC registers
this prevents getting bogus values which could cause a flight mode
change
2012-03-10 10:34:30 +11:00
Andrew Tridgell efe2686b33 GPS: added an acceleration estimate to the GPS driver
This uses the GPS ground speed to estimate acceleration
2012-03-10 10:34:30 +11:00
Andrew Tridgell 02ae5358d5 GPS: fixed some stdint types 2012-03-10 10:34:29 +11:00
Andrew Tridgell 2f5a4cdc4a Quaternion: added in reporting of gyro drift and rp/yaw errors 2012-03-10 10:34:29 +11:00
Andrew Tridgell 934a05bbc6 fixed comment 2012-03-10 10:34:29 +11:00
Andrew Tridgell a60cf111c5 DCM: fixed an uninitialised variable warning 2012-03-10 10:34:29 +11:00
Andrew Tridgell 7d9c4094a2 Quaternion: tweak the quaternion gains a bit 2012-03-10 10:34:29 +11:00
Andrew Tridgell e33bb217bc AP_IMU: improved the gyro calibration code
this should give a much more accurate result
2012-03-10 10:34:29 +11:00