Method and device for aiding the landing of an aircraft on a runway
First Claim
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1. A method of aiding the landing of an aircraft on a runway, said method employing at least one landing aid radio means and using an angular vertical position of the aircraft, wherein the following operations are carried out automatically and repetitively:
- a) the position of the aircraft in latitude and longitude is determined in a stand-alone manner;
b) the position of the threshold of said runway in latitude and longitude is determined;
c) on the basis of the positions determined in steps a) and b), a first distance corresponding to the distance in a horizontal plane between the aircraft and the threshold of the runway is computed;
d) to this first distance is added the distance in a horizontal plane between a predetermined ground reference point and said threshold of the runway so as to form a second distance;
e) with the aid of this second distance and of the value of the measured approach slope of the aircraft, a first height corresponding to the relative height of the aircraft with respect to the threshold of the runway is computed;
f) a predetermined metric deviation is subtracted from said first height so as to form a second height; and
g) on the basis of said second height and of said second distance, said angular vertical position of the aircraft is corrected, the angular vertical position thus corrected being used to aid the landing of the aircraft.
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Abstract
Method and device for aiding the landing of an aircraft on a runway.
The device (1) uses an angular vertical position of the aircraft and comprises at least one landing aid radio means (2A), means (3) for determining in a stand-alone manner the position of the aircraft in latitude and longitude, means (4A) for determining the position of the threshold of said runway in latitude and longitude, and a computing unit (5) for, on the basis of said positions of the aircraft and of the threshold of the runway, correcting the angular vertical position of the aircraft, the angular vertical position thus corrected being used to aid the landing of the aircraft.
24 Citations
16 Claims
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1. A method of aiding the landing of an aircraft on a runway, said method employing at least one landing aid radio means and using an angular vertical position of the aircraft,
wherein the following operations are carried out automatically and repetitively: -
a) the position of the aircraft in latitude and longitude is determined in a stand-alone manner;
b) the position of the threshold of said runway in latitude and longitude is determined;
c) on the basis of the positions determined in steps a) and b), a first distance corresponding to the distance in a horizontal plane between the aircraft and the threshold of the runway is computed;
d) to this first distance is added the distance in a horizontal plane between a predetermined ground reference point and said threshold of the runway so as to form a second distance;
e) with the aid of this second distance and of the value of the measured approach slope of the aircraft, a first height corresponding to the relative height of the aircraft with respect to the threshold of the runway is computed;
f) a predetermined metric deviation is subtracted from said first height so as to form a second height; and
g) on the basis of said second height and of said second distance, said angular vertical position of the aircraft is corrected, the angular vertical position thus corrected being used to aid the landing of the aircraft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device for aiding the landing of an aircraft on a runway, said device (1) comprising at least one landing aid radio means (2A, 2B) and using an angular vertical position of the aircraft,
which device moreover comprises: -
first means (3) for determining in a stand-alone manner the position of the aircraft in latitude and longitude;
second means (4A, 4B, 4C) for determining the position of the threshold of said runway in latitude and longitude; and
a computing unit (5) for, on the basis of said positions of the aircraft and of the threshold of the runway, correcting said angular vertical position of the aircraft, the angular vertical position thus corrected being used to aid the landing of the aircraft. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification
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Current AssigneeAirbus Operations SAS (Airbus SE)
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Original AssigneeAirbus France
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InventorsTatham, Gilles, Falcati, Michel
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current342/33
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CPC Class CodesG01S 1/18 Elevational guidance system...G01S 1/56 Timing the pulse-type envel...G01S 19/15 Aircraft landing systemsG01S 19/396 Determining accuracy or rel...
