Passive Ranging Sonar System.
Patent, Filed 4 Feb 66, patented 23 Jul 91,
DEPARTMENT OF THE NAVY WASHINGTON DC
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A passive acoustic detector including a line hydrophone and apparatus coupled thereto operable to utilize the energy sensed by the elements of the hydrophone during passive listening to effect scanning in depression-elevation by delaying for directivity and then combining acoustic energies sensed by the hydrophone elements and recording the combined energies on a x-y strip recorder for enhanced signal-to-noise ratio. Author
- Acoustic Detection and Detectors
- Target Direction, Range and Position Finding