METHODS AND APPARATUS FOR AUTOMATIC STC FROM SEA STATE MEASUREMENT VIA RADAR SEA CLUTTER ECCENTRICITY
First Claim
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1. A method, comprising:
- receiving radar return information from signals transmitted by a radar;
processing the radar return information to identify sea clutter;
processing, using a processor, the sea clutter to fit an ellipse to arrange horizon of the sea clutter as a function of azimuth to determine a sea state; and
selecting sensitivity time control (STC) attenuation of the sea clutter based upon the sea state.
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Abstract
Methods and apparatus to receive radar return information from signals transmitted by a radar, process the radar return information to identify sea clutter, process the sea clutter to fit an ellipse to arrange horizon of the sea clutter as a function of azimuth to determine a sea state, and select sensitivity time control (STC) attenuation of the sea clutter based upon the sea state.
3 Citations
23 Claims
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1. A method, comprising:
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receiving radar return information from signals transmitted by a radar; processing the radar return information to identify sea clutter; processing, using a processor, the sea clutter to fit an ellipse to arrange horizon of the sea clutter as a function of azimuth to determine a sea state; and selecting sensitivity time control (STC) attenuation of the sea clutter based upon the sea state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method comprising:
processing, using a processor, radar signal return to automatically determine a sea state.
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15. An article, comprising:
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non-transitory computer readable instructions stored on a computer readable medium to enable a machine to perform; receiving radar return information from signals transmitted by a radar; processing the radar return information to identify sea clutter; processing the sea clutter to fit an ellipse to a range horizon of the sea clutter as a function of azimuth to determine a sea state; and selecting sensitivity time control (STC) attenuation of the sea clutter based upon the sea state. - View Dependent Claims (16, 17, 18)
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19. A radar system comprising:
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an antenna to receive radar return; a sensitivity time control (STC) module to provide STC attenuation of the radar return, the STC module including a sea clutter module to determine sea clutter including a sea clutter range horizon as a function of azimuth and a sea state module to determine a sea state by fitting the sea clutter range horizon to an ellipse; and a display to enable a user to perceive radar return information. - View Dependent Claims (20, 21, 22, 23)
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Specification