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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2016, Vol. 37 ›› Issue (7): 2286-2294.doi: 10.7527/S1000-6893.2016.0091

• Electronics and Control • Previous Articles     Next Articles

Wind identification and application of powered parafoil system

TAN Panlong1, SUN Qinglin1, GAO Haitao2, CHEN Zengqiang1   

  1. 1. College of Computer and Control Engineering, Nankai University, Tianjin 300350, China;
    2. Department of Electronics, Anhui Science and Technology University, Fengyang 233100, China
  • Received:2016-01-07 Revised:2016-03-21 Online:2016-07-15 Published:2016-03-24
  • Supported by:

    National Natural Science Foundation of China (61273138); Key Fund of Tianjin (14JCZDJC39300)

Abstract:

Wind factor has an important influence on dynamics of the powered parafoil system. The identification of wind speed and direction is the key point for the powered parafoil system to take advantage of wind or to eliminate wind impact. By analyzing the dynamic characteristics of the powered parafoil in wind field, a wind identification method based on the powered parafoil dynamics is proposed and applied to solve this problem. The proposed method utilizesthe positioning data from global positioning system (GPS) to compute the velocity and direction of the powered parafoil system, which is only necessary for wind identification. Wind speed and direction are identified in real-time according to the dynamic relationship between the wind field and the powered parafoil system by using the least square method. To improve identification accuracy, the collection of motiondata obtained by GPS is applied to identify current wind speed and direction after being processed by Kalman filter. Simulation results show that the proposed method is sufficient to handle wind identification problem with high accuracy. And the identification result supports flare-landing.

Key words: powered parafoil system, wind identification, trajectory planning, Kalman filter, flare-landing

CLC Number: