Center Radar Arts Presentation/processing-Plus (CENRAP-PLUS)

A computer program developed to provide a back-up system for Airport Surveillance radar in the event of a terminal secondary radar system failure. The program uses a combination of Air Route Traffic Control Center Radar and terminal Airport Surveillance radar primary targets displayed simultaneously for the processing and presentation of data on the ARTS IIA or IIIA displays.

Source: Pilot Contoller Glossary (PCG)