Abstract: A system and a method of generating a three-dimensional terrain model using one-dimensional interferometry of a rotating radar unit is provided herein. Height information is evaluated from phase differences between two echoes by applying a Kalman filter in relation to a phase confidence map that is generated from phase forward projections relating to formerly analyzed phase data. The radar system starts from a flat earth model and gathers height information of the actual terrain as the platform approaches it. Height ambiguities are corrected by removing redundant 2? multiples from the unwrapped phase difference between the echoes.
Type:
Grant
Filed:
February 16, 2011
Date of Patent:
March 17, 2015
Assignees:
Elbit Systems Ltd., RST Radar Systemtechnik GmbH
Inventors:
Hans Martin Braun, Gadi Maydan, Holger Baessler, Carston Jonas, Ofer Klein