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107 Commits

Author SHA1 Message Date
Jason Short c5d3620d2b Arducopter: INS 
updated Nav control to use INS
 2012-07-18 22:57:10 -07:00
Jason Short 9de2c00d93 Arducopter: WP_radius 
Switching to stored WP_radius in meters, just like Arduplane
 2012-07-10 21:53:38 -07:00
Andrew Tridgell a643d2aa6b ACM: use get_distance_cm() not get_distance() 
this fixes a bug introduced in 28f2eb6b9
 2012-07-11 07:50:07 +10:00
Jason Short 9e796899e4 Airspeed patch: 
pre-calculated airspeed resistance pitches copter automatically to gain a certain speed allowing the speed controller to work off of a better set point - similar to Alt hold.
added param tilt_comp with a default of 54 which equals 19.5° of pitch to go 6m/s
upped Z and Y target speeds to int32_t for speed squared calculation
 2012-07-09 13:13:32 -07:00
Andrew Tridgell 35b73b9d01 ACM: removed some Location functions which are now in AP_Math 2012-07-04 13:44:36 +10:00
Jason Short fcc38889b4 Navigation 
increased speed governor to get faster WP travel
added param for WP tilt - basically a precalculated I term for wind resistance.
 2012-07-03 17:34:50 -07:00
Jason Short c20c04ed24 removed GPS ground speed calc - was causing some funny business during the transition. 2012-07-03 17:16:14 -07:00
Jason Short d893cde785 navigation.pde : Added a drag/velocity prediction filter for improved I term wind correction. 2012-06-29 21:20:28 -07:00
Jason Short 50b3ef66a7 Navigation.pde : removed old cross tracking from Arduplane. Added new 2D cross tracking. Added use of GPS velocity when above 1.5m/s 2012-06-25 23:06:28 -07:00
Jason Short 6dc1e02f76 Inertial Control 
I added inertial navigation based on the simulator data. This is an option only available if you compile with Arduino and set
#define INERTIAL_NAV ENABLED
in the APM_Config.h file.

This has been tested for one real flight and did not crash my quad, but consider it very alpha. The quad may be unpredictable at first until the error correction fixes poorly calibrated accels. Be Careful.

Most of the real work is in the inertia file, but the error correction, new variable defines and calibration calls are sprinkled throughout.

The Log should record RAW messages with special debugging values.
 2012-06-13 22:34:45 -07:00
Jason Short 95076bf08e navigation.pde: 
removed unneeded WP_Distance check
remove unneeded return for Navigate
removed unneeded rate_D calcs
removed unused functions
 2012-05-17 11:05:05 -07:00
Jason Short 7278e8d1e5 removed retro loiter code since Angel has a branch now. 
shrank speed filter to avoid latency
removed unused forward estimator code

placed code for switchover to gps.groundspeed at 1.5m/s

added clamp for D term when below .5m/s to eliminate noise

added hybrid I-term based on speed error and position

changes Loiter D term to use position rather than acceleration to avoid noise
 2012-05-15 22:14:23 -07:00
Adam M Rivera 2ee8237b5f ArduCopter/Navigation: Updated code to reference the new g.retro_loiter param instead of the compile define. 2012-04-23 00:19:18 -05:00
Adam M Rivera 4430f75344 navigation.pde: Put the new calc_GPS_velocity method in a compiler if that checks the new RETRO_LOITER_MODE config value (saves space and ensures its not being used unless retro loiter mode is enabled) 2012-04-19 10:21:04 -05:00
Adam M Rivera ad13854ab7 Loiter: Made the "retro loiter" routines configurable. Add RETRO_LOITER_MODE ENABLED to APM_Config.h to enable the older loiter shtuff. 2012-04-19 10:16:29 -05:00
Adam M Rivera c7c6dd70b9 navigation.pde: Added calc_GPS_velocity. Added constraint to x/y error and x/y rate error. 2012-04-18 23:06:15 -05:00
rmackay9 8f0bc57967 ArduCopter - navigation.pde - added logging of Loiter PID controllers 2012-04-11 23:52:25 +09:00
rmackay9 7dc18b53ad ArduCopter - navigation - corrected comment in check_missed_wp function to clarify that you've passed the waypoint when the direction to the way point is more than 100 degrees off (not 10 degrees off) from your original bearing towards the waypoint 2012-03-20 17:11:22 +09:00
rmackay9 ce6b1ccc75 ArduCopter - Navigation.pde - corrected comment re wp_distance and get_distance to clarify that they are in cm (not meters!) 2012-03-20 16:13:38 +09:00
rmackay9 485cebf85c ArduCopter - bug fix to calc_XY_velocity (was using uninitialised last_longitutde and last_latitude for speed calculations) 2012-03-18 12:11:12 +09:00
Jason Short f6638d00d6 ACM: Smoother Speed calcs 2012-03-16 14:10:19 -07:00
Jason Short 0c6a87db3f ACM: Disabled D term experiment for Loiter until more testing 2012-03-15 19:20:03 -07:00
Jason Short 0edc1020ac ACM: Loiter D performance updates 2012-03-13 10:23:31 -07:00
Jason Short 580c5e109e ACM: Got the sign wrong. I'm using the derivative of the error now and not the sensor, so the sign was reversed. 2012-03-12 13:11:05 -07:00
Jason Short 56d2b9ef05 ACM: Broke out the D term for the PID loop to add custom filtering. The current AC_PID filtering wasn't working for this application and we needed more smoothing. Bad pitch oscillations were being transmitted to the copter. 2012-03-11 23:21:49 -07:00
Jason Short 68d210660e ACM: Added note about scaling rates 2012-03-10 12:43:28 -08:00
Jason Short 4b75f74d2c ACM: Altered the scaling speed for altitude changes for faster rises. 2012-03-10 12:43:01 -08:00
Jason Short 874f5aaef6 ACM: Added force_new_altitude call to do immediate changes in altitude and no gradual changes. 2012-03-10 12:42:22 -08:00
rmackay9 9986776e0d ArduCopter - fixed small compile warning about unused x_iterm and y_iterm in navigation.pde 2012-03-11 01:27:58 +09:00
Jason Short 9a2be4701f removed Constraint that caused JLN's horizontal drift. 2012-02-26 11:33:37 -08:00
Jason Short 22982cda0f Loiter updates 2012-02-23 22:03:26 -08:00
Jason Short 151e710668 Added slow wp option in calc_desired_speed 2012-02-19 13:13:21 -08:00
Jason Short a4b8119c24 added workaround for resetting alt. 2012-02-19 12:40:08 -08:00
Jason Short cbe297b634 scaled X velocity 2012-02-16 22:09:22 -08:00
Jason Short 0b011e3cd3 added option in code for Loiter specific gains 2012-02-15 09:10:15 -08:00
Jason Short 8cc480f7e6 upped max target speed to center of loiter 2012-02-10 22:46:27 -08:00
Jason Short 0f3c3bb563 Loiter update - removed compensation curve. Did some more math and its's not worth the effort, harder to tune. 2012-02-09 22:22:00 -08:00
Jason Short 5de459a160 tweaks to Loiter 2012-01-30 21:13:03 -08:00
Jason Short ba81e2aa69 pid_nav_lat incorrectly labeled 2012-01-29 23:02:00 -08:00
Jason Short 25c2c9b437 removed filter. Don't need it. 2012-01-29 17:10:52 -08:00
Jason Short 0213f4dd88 2.2B6 - Please verify Heli still functions properly. 
Added AC_PID lib
Updated landing code
bug fixes
 2012-01-28 22:00:05 -08:00
Jason Short 86c7742dc0 added loiter_d to allow users to configure alternate Loiter alg 2012-01-22 14:19:27 -08:00
Jason Short 32241319c1 Revert "test to switch loiter controls" 
This reverts commit 92270371d038f246d535f0ace9fc19272c44291d.
 2012-01-22 14:19:27 -08:00
Jason Short 04a2eee410 test to switch loiter controls 2012-01-22 12:28:34 -08:00
Jason Short e1f7fa34ea Fixed speed governor which was letting speed get to 0. 
added Loiter_d to replace Nav_P for rate control
wp_distance calc now returns CM
 2012-01-21 22:12:57 -08:00
Jason Short ab8bf0b560 increasing the velocity near WP 2012-01-21 11:59:49 -08:00
Jason Short 0475dbf8ae relocated reset_I term functions to central location 2012-01-20 22:52:30 -08:00
Jason Short 589f8bc557 Disabled Ryans filter until we get real-world testing in. 2012-01-13 12:48:02 -08:00
Jason Short 8416de7e9c Added Ryan's GPS lag filter 
Removed unused code
refined alt change
 2012-01-12 22:28:58 -08:00
Jason Short 464038b3ea New Loiter control 2012-01-11 22:41:51 -08:00