Azimuth correction for radar antenna roll and pitch
Patent 5166689 Issued on November 24, 1992. Estimated Expiration Date: 
November 25, 2011. 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.
November 25, 2011. 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 ReferencesMeans for calibrating the elevation and azimuth angles of the scan axis of an antenna Tracking circuit for following objects through antenna nulls Antenna tracking system Three-dimensional electro-optical tracker Target detector Patent #: 4975705 InventorsApplicationNo. 797653 filed on 11/25/1991US Classes:342/77, With signal error correction342/62, Missile or spacecraft guidance342/63Aircraft guidanceExaminersPrimary: Sotomayor, John B.Attorney, Agent or FirmInternational ClassG01S 013/66AbstractA vehicle mounted radar system has an antenna (12) which rotates about a reference axis (19). During angular movement of the antenna with respect to the reference axis, a radar indicated target azimuth ($c;') is modified to provide a corrected target azimuth ($c;) which is substantially indicative of the actual or true target azimuth. A tracking system (25) uses a predicted radar indicated target position (Pn+1 (x,y)) for target tracking and correlation. The tracking system uses a smoothed target position (STP(x,y)), indicative of actual target position, for providing a visual display (39) of target track. | |
