Auto landing control for small scale unmanned helicopter with flight gear and HILS

Autonomous landing is a challenging and important task for rotorcraft-based unmanned aerial vehicle (RUAV). This paper presents an autonomous landing algorithm for RUAV. The accurate landing is achieved by generating reference trajectory using near-minimum-time maneuver method and tracked with Lyapunov stabilizing approach. Along with this the testing environment for RUAV is developed to validate our landing algorithm. Complete setup is implemented and run under QNX RTOS, based on PC104 embedded board. The algorithm is tested and evaluated using HILS (Hardware in the loop simulation). Simulation result shows that proposed algorithm effectively handles elevated terrain under high altitude and lands accurately.

[1]  Bong-Ju Kim,et al.  Automatic Landing Control Law for Unmanned Helicopter using Lyapunov Approach , 2006, 2006 ieee/aiaa 25TH Digital Avionics Systems Conference.

[2]  Koeng-Mo Sung,et al.  Forward-backward time varying forgetting factor Kalman filter based DOA estimation algorithm for UAV (Unmanned Aerial Vehicle) autolanding , 2002, 2002 IEEE International Conference on Acoustics, Speech, and Signal Processing.

[3]  S. Sastry,et al.  Autonomous Exploration in Unknown Urban Environments for Unmanned Aerial Vehicles , 2005 .

[4]  Eric N. Johnson,et al.  Adaptive Flight Control for an Autonomous Unmanned Helicopter , 2002 .

[5]  Norihiko Adachi,et al.  An intelligent landing system based on a human skill model , 1998 .

[6]  Jih-Gau Juang,et al.  Intelligent landing control using linearized inverse aircraft model , 2002, Proceedings of the 2002 American Control Conference (IEEE Cat. No.CH37301).

[7]  Rita Cunha,et al.  Autolanding Controller for a Fixed Wing Unmanned Air Vehicle , 2007 .

[8]  S. Shankar Sastry,et al.  Decentralized nonlinear model predictive control of multiple flying robots , 2003, 42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475).

[9]  Simon Lacroix,et al.  High resolution terrain mapping using low attitude aerial stereo imagery , 2003, Proceedings Ninth IEEE International Conference on Computer Vision.

[10]  Gaurav S. Sukhatme,et al.  Autonomous deployment and repair of a sensor network using an unmanned aerial vehicle , 2004, IEEE International Conference on Robotics and Automation, 2004. Proceedings. ICRA '04. 2004.

[11]  Aníbal Ollero,et al.  Cooperative Fire Detection using Unmanned Aerial Vehicles , 2005, Proceedings of the 2005 IEEE International Conference on Robotics and Automation.

[12]  Youdan Kim,et al.  Introduction to Dynamics and Control of Flexible Structures , 1993 .

[13]  A. R. Perry,et al.  The FlightGear flight simulator , 2004 .