Visual Sampling on a Simulated PPI Display.
NAVAL UNDERWATER SYSTEMS CENTER NEWPORT R I
Pagination or Media Count:
Much effort has been spent in studying the sonar operator as a target detector. In general, it is assumed that the operator samples all the data available to him. This sutdy discusses the operators sampling procedure on a simulated plan position indicator PPI display. In visual sampling, information is obtained by an operator from a display by fixating points on the display with his eyes. The area near these points contains most of the information that the operator uses from the display to make a decision of target or no target. The use of the Electro-oculargramEOG is obtaining the operators fixation points is discussed, along with the drift problems and a method to decrease drift by using feedback to the electrodes. Experimental results of an operators sampling of a simulated PPI display are reported for two types of CRTs storage and nonstorage. Author
- Acoustic Detection and Detectors