Learning to Optimize Abort Thresholds for Multi-Attempt UAV Missions  
Author

Yike Zhang

 

Co-Author(s)

Qingan Qiu;  Rongchi Sun; Rui Ye

 

Abstract We consider multi-attempt mission-abort decisions for a single UAV operating in an uncertain environment, where both the mission completion rate and the external shock intensity are unknown. The UAV is allowed to make at most N attempts to accomplish the mission. A fundamental trade-off arises in each attempt: continuing the mission increases the probability of completion but also raises the risk of being shot down, whereas aborting the mission reduces exposure risk but incurs a recall cost and may leave the mission unfinished. We model the random mission completion time and the stochastic shock arrival process by an exponential distribution and a Poisson process, respectively, and update the unknown parameters online through Bayesian learning based on the observed mission duration and shock counts from previous attempts. We formulate the problem as a finitehorizon Markov decision process and characterize the optimal abort threshold for each attempt. We further establish monotonicity properties of the optimal value function.

 

Keywords UAV; Mission Abort Decision-making; MDP; Bayesian Statistical Learning
   
    Article #:  RQD2026-187
 

Proceedings of 31st ISSAT International Conference on Reliability & Quality in Design
August 5-7, 2026