Wesley A. Olson's research while affiliated with Massachusetts Institute of Technology and other places
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Publications (4)
The traffic alert and collision-avoidance system has been mandated worldwide to protect against aircraft midair collisions. One drawback of the current traffic alert and collision-avoidance system design is limited support for closely spaced parallel runway operations. The traffic alert and collision-avoidance system alerts, too frequently, leading...
The Traffic Alert and Collision Avoidance System (TCAS) has been mandated worldwide to protect against aircraft mid-air collisions. One drawback of the current TCAS design is limited support for certain closely spaced parallel runway operations. TCAS alerts too frequently, leading pilots to often inhibit Resolution Advisories during approach. Resea...
The Traffic Alert and Collision Avoidance System (TCAS) is mandated worldwide on large commercial aircraft and has been shown to substantially reduce the risk of midair collision. However, the logic used to select pilot advisories is difficult to modify and does not easily support new surveillance inputs. The next generation system, called Airborne...
Unrestricted access to civil airspace requires the ability to see-and-avoid other aircraft. While an on-board pilot normally provides this capability, unmanned aircraft systems must develop an alternate means of compliance with the see-and-avoid regulations, that is a sense and avoid capability is required to gain flexible airspace access. This art...
Citations
... b). With this provision from the regulation, pilots are required to selfseparate from other aircraft and maintain separation to ensure they pass well clear of all air traffic (Cole et al., 2013). Regarding the concept of self-separation, Wing and Cotton (2011b) noted that it involves the use of on-board systems and procedures by the pilot of an aircraft to maintain safe and legal distances from other aircraft. ...
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... Holland et al. [8] and Chludzinski [1] simulate encounters, many of which come from recorded flight data. Lee et al. [18] develops a technique called differential adaptive stress testing to find scenarios in which TCAS does not result in an NMAC, but ACAS X does. ...
... Underhill [18] described a cooperative aircraft encounter model which is used to generate random close encounters between aircraft in Monte Carlo simulations to evaluate collision avoidance system concepts. However, due to the high density of aircraft in the busy airspace near the airport [19], the possibility of more than two-aircraft collision will be increased and the workload of coding these case-by-case models will be greatly increased. ...
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... This methodology has been applied successfully in many diverse optimization problems with expensive, noisy function evaluations. [29][30][31] Alternatively, we can sample directly from the posterior using "pseudo-marginal" MCMC. Although using noisy estimates for the likelihood function does result in slower mixing, it still generates valid samples from the posterior. ...
