Minh Quang Tran's Discussions (11)

Sort by

EKF questions

From the number of viewers I see that many peoples are interested in EKF topic, so I try to describe the algorithm as I understand. Although this decription still lacks the information of measurement and process noise, and of covariance's initializat

Read more…

Fixing bug of adding dummy waypoint

On Thursday with the help of my friends field test was done to see if the bug of adding a dummy waypoint to the end of the flight plan is fixed. We started with modified Arduplane 2.65 with the flight plan

QGC WPL 110
0 1 0 16 0 0 0 0 21.062670 105.797

Read more…

APM 2.5 issue

I've just received new APM 2.5. When testing its log data seem problematic: altitude mix and altitude GPS are of very high value, about 170 m although I tested on the ground. Then I tried to install a new Mission Planner, version 1.2.22, but the PC c

Read more…

Fixing a known bug

By mistake I posted this on aerial photography 
Recently I've used a flight plan with the last command DO_JUMP as below
0 1 0 16 0 0 0 0 21.062668 105.797707 2.000000 1
1 0 3 16 0.000000 0.000000 0.000000 0.000000 21.063231 105.797684 30.000000 1
2 0 3

Read more…

DO_JUMP has no effect at all

Recently I've used MP to add a DO_JUMP command toward the end of the waypoint list. But it had no effect at all, when reaching the last waypoint, the  plane flew home. At close look, I see that MP sets DO_JUMP command parameters as P1 = WP#, P2 = rep

Read more…

Coding error?

Coding error, can anyone confirm?

I tried to understand Arduplane's code. In calc_nav_roll (Attitude.pde) there's a command:

nav_roll = g.pidNavRoll.get_pid(bearing_error, dTnav, nav_gain_scaler);I understand that dTnav is the time interval between cal

Read more…