Multilateration system and method
AssigneeRoke Manor Research Limited
InventorRobert J. Weedon
Life of this patent
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Abstract
A multilateration system and method includes a plurality of receiver stations for receiving signals from an aircraft, and a controller that derives the position of the aircraft by applying a multilateration process to outputs from the receiver stations. For this purpose, the controller determines the altitude of the aircraft and selects a multilateration process that is to be used for position determination, based on the determined altitude.
Claims13
A multilateration system comprising:
- a plurality of receiver stations for receiving a signal from an aircraft;
- and
- a controller that derives the position of the aircraft by applying a multilateration process to outputs of the receiver stations, which outputs indicate receipt of said signal, wherein the controller determines
- i) determines an altitude of the aircraft;
- ii) chooses a multilateration process based on the determined altitude;
- and
- iii) performs the chosen multilateration process to provide a position of the aircraft.
An air-traffic control system for monitoring air-traffic, said air-traffic control system comprising:
- a multilateration system that includes a plurality of receiver stations for receiving a signal from an aircraft;
- and a controller that derives the position of the aircraft by applying a multilateration process to outputs of the receiver stations, which outputs indicate receipt of said signal, wherein the controller i) determines an altitude of the aircraft;
- ii) chooses a multilateration process based on the determined altitude;
- and iii) performs a chosen multilateration process to provide a position of the aircraft;
- means for displaying at least some of track information provided by the chosen multilateration system to a system operator.
A multilateration method of determining the position of an aircraft emitting a code, said method comprising:
- receiving the code at a plurality of receiver stations;
- and
- deriving a position of the aircraft by applying a multilateration process to outputs of the receiver stations;
- wherein said step of deriving a position of the aircraft comprises,
- determining an altitude of the aircraft;
- choosing a multilateration process based on the determined altitude;
- and
- performing the chosen multilateration process to provide the position of the aircraft.
Dependencies are inferred from the claim text.