Abstract :
An electronic surveying system has been developed by the Cubic Corporation, San Diego, Calif., that can measure distances to 150 miles with an accuracy of ± 3 feet. The system, employing airborne and land-based equipment, combines principles used in Cubic´s missile-tracking equipment with established photogrammetric technique. Called EMPE-Aeris (electronic mobile positioning equipment-aerial electronic range instrumentation system), the system greatly reduces the time of long-distance land surveys with conventional equipment.