Sonar simulation system using advanced digital to video conversion techniques
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorThomas A. Krueger
Life of this patent
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Abstract
A sonar simulation system comprises a general purpose digital computer and n interface processor which receives position and intensity information from the computer for the effects to be simulated and spreads the effects in range and bearing to simulate a PPI display. Simulated range-bearing cells are displayed on the PPI with a resolution of 0.5.degree. making the time between cells 46 microseconds. During each 46 microseconds interval, all of the sonar effects are independently and successively examined to determine if they have a contribution to the next cell to be displayed. The intensity of each of the contributors are summed for output to the sonar interface equipment.
Claims10
A system for visual display of simulated sonar effects comprising:
- means for visually displaying sonar effects;
- digital-to-analog convertor means connected to said display means;
- digital computer means for storing said sonar effects and for controlling said system;
- and
- processing means, connected between said computer means and said convertor means, for examining, during a predetermined period of time, each effect successively and independently to determine the intensity of each effect, for summing the intensities thus determined to arrive at a resultant intensity, and for applying, at the end of said predetermined period of time, a signal representative of the resultant intensity to said convertor means.
Dependencies are inferred from the claim text.