The shipboard components of the Joint Precision Approach and Landing System (JPALS) are designed to provide automatic landing capability for the carrier-based aircraft in the final approach phase. However, the landing accuracy of the carrier-based aircraft is reduced due to the existence of ship's lever arm effect and flexible deformation. In this paper, a nonlinear parameter error model is developed based on satellite guided automatic landing. The model is used with the ship deck motion and longitudinal flight control model to evaluate the influence of ship structure deflection and attitude uncertainty on aircraft landing accuracy. The results show that the lever arm effect and flexible deformation have a significant impact on the landing accuracy. Using the error model proposed and the flight control model, the accuracy of the landing point can be effectively controlled within the landing standard.
LIANG Lei
,
XIAO Jing
,
ZHAN Guang
,
SU Dalin
. Automatic landing technology considering lever arm effect and flexural deformation[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2021
, 42(8)
: 525841
-525841
.
DOI: 10.7527/S1000-6893.2021.25841
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