Patent ID: 11901630
Assignee: LOCKHEED MARTIN CORPORATION
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A system, comprising:
a feed structure comprising an electronically scanned array (ESA) feed and a sub-reflector configured to propagate a signal between the ESA feed and a main reflector;
a star tracker element coupled to the feed structure and configured to determine orientation information relative to star alignment;
laser distancing elements coupled to the feed structure and configured to determine distance measurements relative to a plurality of reflective targets disposed about a rim of the main reflector, the targets having corresponding shapes selected to provide reflection of beams emitted by the laser distancing elements over a range of orientations relative to the feed structure producible by a gimbal mechanism for the main reflector; and
a control system configured to determine pointing errors of the main reflector based at least on the orientation information and the distance measurements.