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http://dx.doi.org/10.7471/ikeee.2014.18.3.376

Posture Stabilization Control of QuadCopter Using Sensor Fusion and Modified PID Control  

Cho, Youngwan (Dept. of Computer Engineering, Seokyeong University)
Kim, Hyun-Soo (Dept. of Computer Engineering, Seokyeong University)
Publication Information
Journal of IKEEE / v.18, no.3, 2014 , pp. 376-382 More about this Journal
Abstract
In this paper, we propose a advanced attitude PID controller and sensor fusion method robust to the vibration of the quadcopter unmanned air vehicle using four BLDC motors. When the gyro sensor and acceleration sensor are fused, a complementary filter is designed to ignore the vibrations generated by the motors and to complement the drawbacks. As a result, we obtain accurate results than using each sensor. Also, it is possible to obtain a low delay results in robust to vibration than the low-pass filter or moving average filter, which is generally used for quadcopter. And we improved D controller, which have being used for attitude control of quadcopter, to quadcopter using gyro sensor. it was confirmed that the attitude is stabilized and error is reduced By using gyro sensor output instead of variation of estimated angle in D control.
Keywords
Quadcopter; Vibration; Complementary Filter; Attitude Control; PID Control;
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