Automatic bright band detection and compensation
First Claim
1. A method of detecting and compensating for a bright band in a weather radar system on board an aircraft, the method comprising:
- at least one of the steps of;
(a) detecting presence of the bright band using an inference system,(b) detecting the presence of the bright band using radar estimates from a first reflectivity scan process of the weather radar system, or(c) detecting the presence of the bright band using an active detection process separate from the first reflectivity scan process, wherein the active detection process is configured for improved detection of the bright band using the weather radar system relative to the first reflectivity scan process;
andcompensating for the bright band by reducing a level of indication on a display in a region corresponding to the bright band.
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Accused Products
Abstract
A weather radar system has bright band detection and compensation. The weather radar system determines that high reflectivity in weather is a bright band and reduces an encoded return level from the bright band to compensate for it on a display. The weather radar system detects the presence of the bright band using an inference system that uses outside air temperature, aircraft altitude, and an assumed lapse rate to estimate the bright band location relative to the aircraft and uses antenna elevation to estimate bright band range to reduce the encoded radar return level on the display. The weather radar system may also detect the presence of the bright band using a detection system that uses radar estimates from normal reflectivity scan operation of the system. The weather radar system may also use an active detection process separate from a normal radar sampling process to detect the bright band.
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Citations
20 Claims
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1. A method of detecting and compensating for a bright band in a weather radar system on board an aircraft, the method comprising:
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at least one of the steps of; (a) detecting presence of the bright band using an inference system, (b) detecting the presence of the bright band using radar estimates from a first reflectivity scan process of the weather radar system, or (c) detecting the presence of the bright band using an active detection process separate from the first reflectivity scan process, wherein the active detection process is configured for improved detection of the bright band using the weather radar system relative to the first reflectivity scan process; and compensating for the bright band by reducing a level of indication on a display in a region corresponding to the bright band. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of detecting and compensating for a bright band in a weather radar system on board an aircraft, the method comprising:
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detecting the presences and determining the location of the bright band by using at least one of; (a) an inference system, (b) radar estimates from a first reflectivity scan operation of the weather radar system, or (c) an active detection process separate from the first reflectivity scan process, wherein the active detection process is configured for improved detection of the bright band using the weather radar system relative to the first reflectivity scan process; and compensating for the bright band by reducing indication intensity or color on a display region corresponding to the determined location of the bright band. - View Dependent Claims (19, 20)
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Specification