Apparatus and method for mitigating multipath
First Claim
1. An apparatus for discriminating between false images created by multipath and an aircraft of interest in an air traffic control environment, comprising:
- an incursion and display processor maintaining a three-dimensional database in the area of interest of the air traffic control environment, the three-dimensional database including a position of a radar radiation source, three-dimensional positions, orientations, and sizes of fixed reflectors and three-dimensional positions, orientations, and sizes of non-fixed reflectors;
receiving return radar radiation from an unknown object;
classifying the unknown object as an aircraft of interest if the return radiation from the unknown object correlates with previous returns; and
classifying the unknown object by searching for a plurality of candidate reflectors and if a sum of the distances between the plurality of candidate reflectors is approximately equal to a distance between the unknown object and a radiation source, classifying the unknown object as a false image created by multipath.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus and method for discriminating between false images created by multipath and an aircraft of interest in an air traffic control environment by maintaining a three-dimensional database in the area of interest of the air traffic control environment, the three-dimensional database including a position of a radar radiation source, three-dimensional positions, orientations, and sizes of fixed reflectors and three-dimensional positions, orientations, and sizes of non-fixed reflectors; receiving return radar radiation from an unknown object; classifying the unknown object as an aircraft of interest if the return radiation from the unknown object correlates with previous returns; and classifying the unknown object by searching for a plurality of candidate reflectors and if a sum of the distances between the plurality of candidate reflectors is approximately equal to a distance between the unknown object and the radar radiation source, classifying the unknown object as a false image created by multipath.
-
Citations
20 Claims
-
1. An apparatus for discriminating between false images created by multipath and an aircraft of interest in an air traffic control environment, comprising:
an incursion and display processor maintaining a three-dimensional database in the area of interest of the air traffic control environment, the three-dimensional database including a position of a radar radiation source, three-dimensional positions, orientations, and sizes of fixed reflectors and three-dimensional positions, orientations, and sizes of non-fixed reflectors;
receiving return radar radiation from an unknown object;
classifying the unknown object as an aircraft of interest if the return radiation from the unknown object correlates with previous returns; and
classifying the unknown object by searching for a plurality of candidate reflectors and if a sum of the distances between the plurality of candidate reflectors is approximately equal to a distance between the unknown object and a radiation source, classifying the unknown object as a false image created by multipath.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
11. A method for discriminating between false images created by multipath and aircraft of interest in an air traffic control environment, comprising the steps of:
-
a) maintaining a three-dimensional database in the area of interest of the air traffic control environment, the three-dimensional database including a position of a radar radiation source, three-dimensional positions, orientations, and sizes of fixed reflectors and three-dimensional positions, orientations, and sizes of non-fixed reflectors; b) emitting radar radiation from the radar radiation source; c) receiving return radar radiation from an unknown object; d) classifying the unknown object as an aircraft of interest if the return radiation from the unknown object correlates with previous returns; and e) classifying the unknown object by searching for a plurality of candidate reflectors and if a sum of the distances between the plurality of candidate reflectors is approximately equal to a distance between the unknown object and the radar radiation source, classifying the unknown object as a false image created by multipath. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification