Acoustic Transponder Navigation System.
DEPARTMENT OF THE NAVY WASHINGTON D C
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The patent provides an improved system for detecting hidden submarine obstacles and for marking a navigable course through such obstacles. It provides an improved sonar system which will respond to both echo signals from passive hunted submerged objects as well as signals from underwater transponders and simultaneously display both signals on a common display screen.
- Acoustic Detection and Detectors
- Underwater and Marine Navigation and Guidance