Analysis of Airborne Alerting Algorithms for Closely Spaced Parallel Approaches

Software Enabled Control. Design of Hierarchical, Hybrid Systems

“…If the alert were given because the other aircraft is blundering, the alert will not be deemed as unnecessary. However, such cases are still categorized as UAs in order to be consistent with the literature [36,37].…”

“…The thresholds picked are the ones that satisfactorily prevent collision. It is not stated in the Honeywell paper [36] what 'satisfactory' quantitatively corresponds to. The MIT algorithm, on the other hand, is designed so that the probability of collision in the event of a blunder is 0.001.…”

“…The results, together with those of the Honeywell AILS Segmented [36] and MIT Probabilistic [38] Alerting Algorithms, and the corresponding formulae for the metrics are given in Table 1. In the To compare the results with the other two algorithms, some background is first given.…”

“…While in the simulation it is necessary to choose only a finite number of blunder trajectories, recall that the analysis considered all blunder trajectories permitted by the model and bounds on control inputs. The validation approach is adapted from Honeywell's work [36]. As presented in the Honeywell approach [36,37], three metrics are used to evaluate the validation results.…”

“…The validation approach is adapted from Honeywell's work [36]. As presented in the Honeywell approach [36,37], three metrics are used to evaluate the validation results. They are the probabilities of 1.…”