Systems Engineering and Electronics ›› 2023, Vol. 45 ›› Issue (6): 1712-1721.doi: 10.12305/j.issn.1001-506X.2023.06.15

• Systems Engineering • Previous Articles    

Screening method for the optimal landing site in the reachable area

Xinze LI, Wenya ZHOU, Kai LIU, Bo WANG   

  1. School of Aeronautics and Astronautics, Dalian University of Technology, Dalian 116024, China
  • Received:2022-05-07 Online:2023-05-25 Published:2023-06-01
  • Contact: Wenya ZHOU

Abstract:

Aiming at the selection of the optimal emergency landing site in the reachable area of fixed-wing aircraft, the problem above is transformed into a multi-attribute evaluation problem by constructing a universal index system, and an entropy weight grey technique for order preference by similarity to an ideal solution(TOPSIS) is proposed to solve it. The evaluation index system of emergency landing site is constructed based on the analysis of weather conditions, landing site characteristics, airspace congestion degree and ground support capacity. On the basis of the TOPSIS, the entropy weight method and the grey correlation degree are used to improve the weight calculation and the distance measurement respectively, which solves the problems that the traditional method relies on the subjective weighting of the evaluation experts and cannot judge the advantages and disadvantages by using the Euclidean metric. The simulation results show that the proposed method is objective in weight determination and accurate in distance measurement, which can provide basis for the selection of aircraft emergency landing site.

Key words: emergency landing, index system, technique for order preference by similarity to an ideal solution (TOPSIS), entropy weight method, grey correlation degree

CLC Number: 

[an error occurred while processing this directive]