Patent ID: 6448922
Filing Date: 2002-09-10
Classification: G01S,Y02A

Abstract:
A method of integrating ground-based radar information into an existing on-board aircraft radar system where a radar indicator displays on-board radar images as a function of data words received from a receiver/transmitter of the on-board aircraft radar system, the method comprising:receiving ground-based radar data, up-linked to the aircraft, indicative of a ground-based radar image; capturing a data word from an output stream of the receiver/transmitter of the on-board aircraft radar system, the captured data word being encoded in a first data word format; determining a position and heading of the aircraft; sampling the ground-based radar data indicative of the ground-based radar image to obtain sampled ground-based radar data corresponding to the position and heading of the aircraft and to a radial scan angle for the captured data word; combining the sampled ground-based radar data and the captured data word into a composite data word, the composite data word being encoded in the first data word format; and providing the composite data word to the radar indicator for use in displaying a composite weather radar image having both on-board weather radar imagery and ground-based weather radar imagery.