Patent ID: 11947023
Assignee: HUGHES NETWORK SYSTEMS, LLC
Field: Telecommunications (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 10:
11. A system to track Non-Geo Synchronous Orbit Satellites on Orbiting Planes of Regular Motion Patterns, the system comprising:
a first satellites moving in a direction descending in latitude in first orbits;
a second satellites moving in a direction ascending in latitude in second orbits;
an antenna to steer the antenna to an antenna tilt φ from normal with a single axis mechanism lined up with a first axis;
a linear array to scan, electronically, at a scan angle Ψ along a second axis; and
a receiver to lock to a signal from a handed-from satellite from the first satellites and to select a handed-to satellite from the second satellites,
wherein the handed-from satellite and the handed-to satellite are Line-of-sight (LOS) from the antenna at an instant of a hand-off,
the first axis is angled from the second axis,
the antenna steers along the first axis and the linear array scans along the second axis to jointly track the handed-from satellite,
the first orbits are parallel,
the second orbits are parallel, and
the first orbits seem aligned with the antenna tilt φ.