Apparatus and method using relative GPS positioning for aircraft precision approach and landing
Apparatus and method for graphically oriented aircraft display and control Patent #: 6112141
ApplicationNo. 09/364632 filed on 07/30/1999
US 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 Firm
International 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).