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US 9,250,317 B1Granted
Methods and apparatus for 3D radar data from 2D primary surveillance radar and passive adjunct radar
AssigneeRaytheon Canada Limited
InventorsJian Wang, Eli Brookner, Peter R. Drake, Bradley Fournier, Anthony M. Ponsford, Yueh-Chi Chang
Life of this patent
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Abstract
Methods and apparatus for combining radar signals of a two-dimensional primary radar covering a surveillance area and a passive adjunct radar to provide three-dimensional data for targets and weather. In exemplary embodiments, high beam and low beam data from the primary radar and elevation data from the adjunct radar can be used to mitigate interference from clutter, such as wind farms.
Claims20
A method, comprising:
- transmitting radar signals using a two-dimensional primary radar to cover a surveillance area;
- receiving return from the transmitted radar signals at the primary radar;
- performing high beam and low beam pulse compression on the received return to provide high beam data and low beam data;
- receiving return from the transmitted radar signal at a passive adjunct radar comprising elevation beam data;
- synchronizing the primary radar and the adjunct radar;
- combining range and azimuth data from the primary radar with elevation data from the adjunct radar to provide three-dimensional data for targets and weather;
- and
- integrating data from the primary radar with data from adjunct radar to improve coverage of the radar.
5 more elements
An article, comprising:
- a computer-readable medium containing non-transitory stored instructions that enable a machine to perform:
- transmitting radar signals using a two-dimensional primary radar to cover a surveillance area;
- receiving return from the transmitted radar signals at the primary radar;
- performing high beam and low beam pulse compression on the received return to provide high beam data and low beam data;
- receiving return from the transmitted radar signal at a passive adjunct radar comprising elevation beam data;
- synchronizing the primary radar and the adjunct radar;
- combining range and azimuth data from the primary radar with elevation data from the adjunct radar to provide three-dimensional data for targets and weather;
- and
- integrating data from the primary radar with data from adjunct radar to improve coverage of the radar.
6 more elements
A radar system, comprising:
- a two-dimensional primary radar to cover a surveillance area by transmitting radar signals;
- an antenna to receive return from the transmitted radar signals at the primary radar;
- an adjunct radar having antenna to receive return from the transmitted radar signal comprising elevation beam data;
- a processor;
- and
- a memory coupled to the processor, the processor and the memory configured to:
- synchronize the primary radar and the adjunct radar;
- perform high beam and low beam pulse compression on the received return to provide high beam data and low beam data;
- combine range and azimuth data from the primary radar with elevation data from the adjunct radar to provide three-dimensional data for targets and weather;
- and
- integrate data from the primary radar with data from adjunct radar to improve coverage of the radar.
8 more elements
Dependencies are inferred from the claim text.