Experimental Validation of a Model and Simulation of Generic Sonar Operator Tasks

Validation Expérimentale d'un Modèle et Simulation des Tâches Génériques d'un Opérateur de Système Sonar


  1. Matthews, M.L.
  2. Bennett, J.
  3. Bos, J.
Corporate Authors
Defence R&D Canada - Toronto, Toronto ONT (CAN);Humansystems Inc, Guelph ONT (CAN);Defence R&D Canada - Atlantic, Dartmouth NS (CAN)
This report outlines the results of an experimental validation of a task network model previously developed to simulate the performance of a generic, two-operator sonar system. The model was used to estimate the effects of assisting the task of array sanitisation through the use of a smart, decision-aiding tool for the operator. The simulation showed an approximate four fold increase in sonar processing throughput with the aid and reduced operator workload. To assess the validity of this outcome, a sonar sanitisation simulation was developed to run on a personal computer and naïve subjects were trained to do the task of array sanitisation with or without the aid. Results confirmed the magnitude of the performance advantage of the aided condition but showed that the workload estimates generated by the model were consistently higher than those actually reported by trial subjects. The overall results provided strong evidence of the validity of the task network model.

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sonar systems;automation;simulation;modelling;human performance;operator workload;human factors
Report Number
DRDC-TORONTO-CR-2005-080 — Contractor Report
Date of publication
01 Apr 2005
Number of Pages
Electronic Document(PDF)

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