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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2021, Vol. 42 ›› Issue (8): 525771-525771.doi: 10.7527/S1000-6893.2021.25771

• Article • Previous Articles     Next Articles

Computation method for reachable domain of aerospace plane under the influence of no-fly zone

ZHANG Jili1, ZHOU Dapeng2, YANG Dapeng2, LIU Ran2, LIU Kai1   

  1. 1. School of Aeronautics and Astronautics, Dalian University of Technology, Dalian 116024, China;
    2. AVIC Shenyang Aircraft Design and Research Institute, Shenyang 110035, China
  • Received:2021-04-15 Revised:2021-05-08 Published:2021-05-21
  • Supported by:
    National Natural Science Foundation of China (61603363);Aeronautical Science Foundation of China (2019ZC063001)

Abstract: The no-fly zone influences the reachable domain of the aerospace plane in the reentry phase. An ultimate circumnavigation based method is proposed to obtain the reachable area no matter where the no-fly zone is. First, considering the residual flight capability of the aerospace plane after avoidance of the no-fly zone, the sub-reachable domain of the plane is derived from the tangent point between the ultimate circumnavigation trajectory and the no-fly zone. On this basis, the boundary of the reachable domain and the unreachable domain is obtained. Then, classifying and solving algorithms for the possible positions of the no-fly zone within the longitude-latitude profile are given to acquire the sub-reachable domains in different situations. The ray method is used to judge whether the target point is located in the reachable domain. The piecewise predictor-corrector guidance method is applied to realize the feasible target point. Finally, classification results of circular no-fly zones dispersed in the longitude/latitude profile are given in simulation. The influenced reachable domain for each class is also obtained. Simulation results show that regardless of the position of the no-fly zone, the proposed method has good stability in terms of obtaining the reachable domain at any situation. For the target points within the reachable domain, the precision requirement can be satisfied by using the piecewise predictor-corrector guidance method.

Key words: aerospace plane, no-fly zone, avoid guidance, reachable domain, predictor-corrector

CLC Number: