System for and method of weather phenomenon detection using multiple beams
First Claim
1. A method of using an airborne weather radar, the method comprising:
- providing a first radar pulse at a first beam position during a radar scan and receiving a first return, the first radar pulse being a velocity sensing beam;
providing a second radar pulse at a second beam position during the radar scan and receiving a second return, the second radar pulse overlaps and is not identical to the first radar pulse;
providing a third radar pulse using a lower gain with a wider beam width at the first beam position during the radar scan and receiving a third radar return, the third radar pulse being a side lobe detection beam; and
processing the first return, the second return and the third return and using data associated with the first return, the second return and the third return to identify and remove non-weather targets weather phenomena detection.
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Accused Products
Abstract
The method includes providing a first radar pulse at a first beam position during a radar scan and receiving a first return, the first radar pulse being a velocity sampling beam. The method also includes providing a second radar pulse at a second and different beam position during the radar scan and receiving a second return, the second radar pulse overlaps and is not identical to the first radar pulse. The method further includes providing a third radar pulse using a lower gain wider beam width beam pattern at the first beam position during the radar scan and receiving a third radar return, the third radar pulse being a side lobe detection beam. The method can also include processing the first return, the second return and the third return and using data associated with the first return, the second return and the third return to determine a presence of weather phenomenon and to identify and remove returns from non-weather targets.
213 Citations
20 Claims
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1. A method of using an airborne weather radar, the method comprising:
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providing a first radar pulse at a first beam position during a radar scan and receiving a first return, the first radar pulse being a velocity sensing beam; providing a second radar pulse at a second beam position during the radar scan and receiving a second return, the second radar pulse overlaps and is not identical to the first radar pulse; providing a third radar pulse using a lower gain with a wider beam width at the first beam position during the radar scan and receiving a third radar return, the third radar pulse being a side lobe detection beam; and processing the first return, the second return and the third return and using data associated with the first return, the second return and the third return to identify and remove non-weather targets weather phenomena detection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A weather radar system coupled to a weather radar antenna, the weather radar system comprising:
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a memory; a processor coupled to the antenna and directing the antenna to provide; a first radar pulse at a first beam position during a radar scan and receive a first return, the first radar pulse being for velocity sampling; a second radar pulse at a second beam position during the radar scan and receive a second return, the second radar pulse overlaps and is not identical to the first radar pulse; a third radar pulse at the first beam position having a lower gain and a wider beam width than the first radar pulse during the radar scan and receive a third radar return, the third radar pulse being for side lobe detection; and wherein the processor stores return data associated with the first radar pulse in the memory, return data associated with the second radar pulse in the memory, and return data associated with the third radar pulse in the memory and uses the return data associated with the first radar pulse, the return data associated with the second radar pulse, and the return data associated with the third radar pulse to identify returns from non-weather targets and wherein the processor determines a presence of wind shear. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An apparatus for sensing weather, the apparatus comprising:
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means for receiving a first return associated with a velocity sampling beam provided during a radar scan, a second return associated with a non-identical, overlapping radar beam provided during the radar scan, and a third radar return associated with a side lobe beam provided during the radar scan; and means for processing the first return, the second return and the third return, and using data associated with the first return, data associated with the second return, and data associated with the third return to remove non-weather targets when determining a presence of wind shear. - View Dependent Claims (18, 19, 20)
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Specification