Satellite landing system having instrument landing system look alike guidance
Patent 6239745 Issued on May 29, 2001. Estimated Expiration Date: 
July 30, 2019. 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.
July 30, 2019. 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 ReferencesApparatus and method using relative GPS positioning for aircraft precision approach and landing Apparatus and method for graphically oriented aircraft display and control Patent #: 6112141 InventorApplicationNo. 09/364632 filed on 07/30/1999US Classes:342/410, Glide slope transmitter or receiver244/183, Of aircraft on its landing course342/357.03, Using differential correction342/411, Receiver only701/17, I.L.S. or radar guidance701/18, Profile of descent701/215Having multiple GPS antennas or receivers (e.g., differential GPS)ExaminersPrimary: Blum, Theodore M.Attorney, Agent or FirmInternational ClassG01S 5/14 (20060101)AbstractDisclosed are a global navigation satellite system (GNSS) landing system (GLS) and methods of using the same to calculate a vertical deviation from the glide slope of the aircraft. A GNSS antenna and position determining circuitry are used to determine the position of the aircraft as a function of received GNSS positioning signals. Vertical deviation computation circuitry coupled to the position determining circuitry calculates an angular vertical deviation v from the glide slope of the aircraft as a function of the total horizontal distance between the aircraft and a GLS elevation reference point (GERP).Other References
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