Angular hopping method for initial searches in geosynchronous earth orbit systems

Abstract

The present invention discloses an angular hopping method for initial searches in Geosynchronous Earth Orbit systems, comprising spatial decoupling, multi-stage peak location detection (MSPLD), and angular hopping. The spatial decoupling divides a joint / full three-dimensional (3D) search space into a decoupled search space and a retrograded search space. The multi-stage peak location detection assigns a peak location in the separated search spaces for rapid positioning. The angular hopping iteratively refines the assigned peak location by applying angular displacements with random signs, thereby progressively refining the peak location and avoiding power dead zone issues. When the beamforming output power falls below a minimum power requirement, the multi-stage peak location detection is re-executed to ensure link alignment.

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