Improvements in Radar Data Presentation

This paper describes an application of the storage tube to marine radar, for providing an automatic plot of the equipped vessel as well as all other vessels within the radar's range. It further describes a new type of presentation which combines relative motion with true motion in a manner easily understood by the mariner and which requires no understanding by him, of new concepts. In addition to providing six different types of presentation, the system for the first time furnishes a means of directly determining the aspect, true course, and true speed of other vessels without auxiliary plotting and without calculations.