Core Memory Digital Signal Processing Applied to Improved Sonar Displays

An experimental sonar display has been designed which is unique m that it takes advantage of superior picturequality characteristics afforded by short-persistence phosphor. The function of signal retention, normally provided by long-persistence phosphor, is accomplished instead with a core memory unit used as a scan converter for rapid refresh of displayed target data. This concept is not necessarily new, but would have been imPractical to implement prior to the advent of high-speed randomaccess core memory units.