Accession Number:

ADA609457

Title:

Integrated Human Behavior Modeling and Stochastic Control (IHBMSC)

Descriptive Note:

Final rept. 1 Jan 2013-15 Aug 2014

Corporate Author:

AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH POWER AND CONTROL DIV

Report Date:

2014-08-01

Pagination or Media Count:

186.0

Abstract:

This project developed an operator error model for improving the accuracy of the operator task of discriminating objects in multiple UAV videos on the Vigilant Spirit Control Station VSCS ground station. This error model is idiographic in the sense that it is tailored for a specific individual. The operator error model is used in a stochastic controller which decides, based on the model uncertainty and the operator input of targetnon-target, whether to revisit the object to obtain additional information or to continue to the next object. The stochastic controller computes the probability of a target given the available evidence and the reliability of the evidence as per the operator error model. Over 120 operator-in-the-loop tests were conducted to obtain sufficient data to be able to estimate the false alarm FA and missed detection MD rates over four variables altitude, aspect angle, dwell time, workload. For a 50 target density scenario where the operator discrimination task is fairly difficult, the integrated human behavior model and stochastic controller IHBMSC was shown to reduce the FA rate from 35 to 5. Also, the IHBMSC performance was found to be quite robust for lower target densities 5 and different operators.

Subject Categories:

  • Numerical Mathematics
  • Statistics and Probability
  • Target Direction, Range and Position Finding
  • Human Factors Engineering and Man Machine Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE