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Source: Barbato, G. (1999). Lessons learned: Integrating voice recognition and automation target cueing symbology for fighter attack. In R.S. Jensen, B. Cox, J.D. Callister, & R. Lavis (Eds.), Proceedings of the 10th International Symposium on Aviation Psychology, 203-207. Columbus, OH: The Ohio State University.
Source Type:   Experiment
Synopsis: "Automatic target cueing and pilot voice recognition and automatic target cueing were integrated into a single-seat fighter cockpit simulator and were evaluated. Pilots were required to fly a pre-planned route to an airfield, where they identified and designated for attack, six tanker aircraft from a group of fifteen aircraft that were parked on the airfield. During navigation and weapon delivery segments of the mission, simulated Airborne Warning and control directed the pilots to: 1) modify their flight route, 2) change radio frequencies, 3) respond to various tasks and instructions, and 4) attack the airfield. During half of the data collection sessions, data input tasks were performed manually by the pilots using an "upfront" keypad; during the other half of the sessions, data input was accomplished by voice. Additional independent variables were: 1) auditory interference—the number of communications requiring pilot response, and 2) maintaining flight altitude workload—maintain altitude at either 300 feet or 1000 feet above ground level, which was a way to induce workload. Objective measures of performance for data input (speed and accuracy) and for aircraft control (deviations from commanded course, airspeed and altitude) were collected while pilots navigated along the flight route. Objective measures collected during ground attack included speed of target designation, total number of targets correctly designated, and standoff distance from the airfield at target designation. … The overall objective of this experiment was to address this operational context issue by: 1) measuring how the use of voice control influenced the pilot’s ability to multitask in a high task load environment, 2) investigating potential interference between voice control and other vocal communication tasks, 3) determining how voice control could influence mission effectiveness in a simulated air interdiction mission, and 4) assessing the utility of voice control when used in conjunction with automatic target cueing symbology."
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