Powered parafoil systems are nonlinear systems that are easily affected by the surrounding
complex environment. In this study, an eight-degree-of-freedom (DOF) model of a powered …

Emerging payload delivery missions bring the need to improve the landing accuracy of the
autonomous heavy parafoil system. However, traditional parafoil guidance and control …

Aircraft system identification has a five-decades-long tradition at German Aerospace Center
(DLR). Over the last two decades, the research covered various topics related to system …

Winds are the major contributors to the tracking error in the control process of the powered
parafoil, making it difficult to achieve better control performance. To address this problem, an …

In this paper, we explore a novel modeling technique to investigate a parafoil flying in wind
environments by using computational fluid dynamics. Further, we apply an eight-degree-of …

Trajectory optimization is essential for all unmanned aerial vehicles, especially the parafoil
delivery system, as the optimized trajectory must be practical and realizable. However, with …

Parafoil systems represent flexible wing vehicles. In case a vehicle is flying at low altitude, it
is well known that the vehicle is more susceptible to winds. Also, due to the nonlinear, large …

Powered parafoil system is strongly nonlinear and contains complicated cross-coupling
characteristic. Under the variable wind disturbance, more severe cross-couplings are …

Parafoil delivery systems play an irreplaceable role in the area of the airdrop supply and
aircraft recovery. Their main function is to transport the payload to the target position. The …

Parafoil systems are strongly nonlinear due to the flexibility of the canopy and suspension
lines, and this characteristic cannot be simulated accurately by existing dynamic models …