Platform carried bistatic sonar
Patent 5237541 Issued on August 17, 1993. Estimated Expiration Date: 
May 21, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 21, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References3237151 InventorAssigneeApplicationNo. 887438 filed on 05/21/1992US Classes:367/92Parametric sonarExaminersPrimary: Pihulic, Daniel T.Attorney, Agent or FirmInternational ClassG01S 015/00AbstractA platform borne sonar system for the detection of targets includes a transmitting projector suspended beneath the water surface from a platform for generating a virtual parametric acoustic array in a water column, forming a beam of acoustic energy. The beam is scannable in azimuth to steer the direct beam in particular directions. A plurality of detectors are arranged to receive the acoustic energy scattered or reflected from any submerged objects present in said direct beam, wherein one or more of the detectors are located the of said direct beam for bistatic reception of the beam reflected off the target. A detector may be suspended beneath the projector for monostatic reception. The direct beam may be scannable in elevation. The direct beam may be narrower vertically than horizontally. | |
