Patent ID: 8643533
Filing Date: 2014-02-04
Classification: G01S,Y02A

Abstract:
1. A weather radar system on-board an aircraft, the weather radar system comprising: an antenna interface for coupling to an antenna; and electronics coupled to the antenna interface, the electronics configured to process return data associated with a radar return received by the antenna from the antenna interface, the radar return being from a location on the ground in front of the aircraft and the electronics configured to determine an altitude directly below the aircraft at the location using the return data, wherein the electronics is configured to use an angle to the location on the ground and a range to the location on the ground determined using the return data to determine a vertical distance between the aircraft and the location, wherein the altitude directly below the aircraft at the location is determined by adjusting the vertical distance in accordance with an aircraft altitude change from a first time when the radar return associated with the location on the ground in front of the aircraft was received and a second time when the aircraft is directly above the location, the aircraft altitude change being determined using at least one data source other than the weather radar system.