Traffic information service (TIS) uplink own aircraft heading correction
First Claim
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1. A method for showing on a display, the position of intruder aircraft relative to an own aircraft comprising the steps of:
- receiving a message uplinked from a ground station wherein said message includes a bearing of the intruder aircraft referenced from an uplinked groundtrack of the own aircraft;
comparing said uplinked groundtrack received in said message with a groundtrack measurement received from an airborne device;
determining a correction by obtaining a difference between said uplinked groundtrack and said groundtrack measurement;
applying said correction to said bearing to obtain a corrected bearing; and
displaying the intruder aircraft on the display at said corrected bearing from the own aircraft.
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Abstract
An apparatus, method and computer program product for correcting own aircraft heading and displaying proximate aircraft traffic data on a Traffic Information Service display. The apparatus, method and computer program minimize slewing of the other aircraft data across the display during aircraft maneuvers and provides a more reliable and consistent depiction of traffic relative to own aircraft position.
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Citations
5 Claims
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1. A method for showing on a display, the position of intruder aircraft relative to an own aircraft comprising the steps of:
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receiving a message uplinked from a ground station wherein said message includes a bearing of the intruder aircraft referenced from an uplinked groundtrack of the own aircraft;
comparing said uplinked groundtrack received in said message with a groundtrack measurement received from an airborne device;
determining a correction by obtaining a difference between said uplinked groundtrack and said groundtrack measurement;
applying said correction to said bearing to obtain a corrected bearing; and
displaying the intruder aircraft on the display at said corrected bearing from the own aircraft.
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2. A computer program product for displaying on a display the position of intruder aircraft relative to an own aircraft comprising:
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a computer readable storage medium having a computer readable program code means embedded in said medium, said computer readable program code means comprising;
a first computer instruction means for receiving a message uplinked from a ground station wherein said message includes a bearing of the intruder aircraft referenced from an uplink groundtrack of the own aircraft;
a second computer instruction means for comparing said uplinked groundtrack received in said message with a groundtrack measurement received from an airborne device;
a third computer instruction means for determining a correction by obtaining a difference between said uplinked groundtrack and said groundtrack measurement;
a fourth computer instruction means for applying said correction to said bearing to obtain a corrected bearing; and
a fifth computer instruction means for displaying the intruder aircraft on the display at said corrected bearing from the own aircraft.
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3. An apparatus for displaying intruder aircraft relative to an own aircraft in a Traffic Information System (TIS) comprising:
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an input coupled to receive;
an uplinked message including a bearing of the intruder aircraft referenced from an uplinked groundtrack of the own aircraft; and
a groundtrack measurement of the own aircraft received from an airborne sensor;
an output;
a signal processor, coupled to said input and to said output for;
obtaining a difference between said uplinked groundtrack and said groundtrack measurement to obtain a bearing correction; and
applying said bearing correction to said bearing to obtain a corrected bearing;
outputting a signal useful for controlling a display to control display of the intruder aircraft relative to the own aircraft at said corrected bearing from the own aircraft.
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4. An improvement to a Traffic Information Service (TIS) system, the improvement comprising:
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an airborne component for;
(a) receiving an uplinked message including at least a bearing data of an intruder aircraft and an own aircraft groundtrack and for receiving an own aircraft groundtrack measurement from an airborne sensor; and
(b) comparing said own aircraft groundtrack and said groundtrack measurement to obtain a correction to said bearing data. - View Dependent Claims (5)
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Specification