ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Wind identification and application of powered parafoil system
Received date: 2016-01-07
Revised date: 2016-03-21
Online published: 2016-03-24
Supported by
National Natural Science Foundation of China (61273138); Key Fund of Tianjin (14JCZDJC39300)
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.
TAN Panlong , SUN Qinglin , GAO Haitao , CHEN Zengqiang . Wind identification and application of powered parafoil system[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016 , 37(7) : 2286 -2294 . DOI: 10.7527/S1000-6893.2016.0091
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