Use of Time-Frequency Representations for Interpreting Handling Qualities Flight Test Data

Tritschler, John; O’Connor, John C.

doi:10.2514/1.g000401

Cited by 3 publications

(1 citation statement)

References 9 publications

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“…The number of local peaks in the cloud is counted to indicate the pilot's substantial workload. Tritschler [6] used the time-frequency amplitude diagram to analyze the pilot's operations and used it as a tool to evaluate the pilot workloads. The results show that the method can be used for quantitative analysis.…”

Section: Introductionmentioning

confidence: 99%

Research on the influence of pilot workload on local route path planning of helicopters in low-altitude penetration

Li¹,

Pan²

2023

J. Phys.: Conf. Ser.

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Targeting the problem of high pilot workload caused by trajectory planning of low altitude penetration, this paper proposed a trajectory planning method considering the pilot workload. Firstly, by decomposing the three-dimensional trajectory into horizontal and vertical directions, the trajectory tree method based on the dynamic programming technique is used for horizontal trajectory planning, and the comprehensive slope-curvature limitation method is used for altitude trajectory planning. Then, a method was proposed to quantify the control inputs and pilot workload based on trajectory tracking simulation. The pilot workload cost, together with flight altitude cost and route length cost, was added to the local planning of a reference trajectory. To solve the problem of dimension explosion in trajectory tree search, a segmented optimal route tree algorithm is proposed. Finally, the simulation results show that the proposed method can effectively consider the pilot workload in trajectory planning, which is helpful to improve the flight ability of the planning trajectory and reduce the pilot workload at the same time.

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Section: Introductionmentioning

confidence: 99%