Method for generating satellite communication beams

By using angular domain representation and skeleton curve modeling, satellite communication beams are generated, solving the problem of discontinuous coverage in narrow and curved areas, achieving smooth transition of beam energy and efficient coverage, and meeting the communication needs of high-speed mobile terminals.

CN121984573BActive Publication Date: 2026-06-19COWAVE SATELLITE COMM TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
COWAVE SATELLITE COMM TECH CO LTD
Filing Date
2026-04-01
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing technologies struggle to effectively handle coverage issues in narrow, curved regions when generating satellite communication beams, resulting in high computational complexity, discontinuous coverage, and gain collapse, making it difficult to meet the communication needs of high-speed mobile terminals.

Method used

A skeleton curve model based on angular domain representation is adopted to reduce the dimension to a one-dimensional parameterized beam pattern model. By constructing an optimization problem with coverage gain and continuity constraints, the complex weight vector of beamforming is solved to drive the phased array antenna to generate a communication beam that matches the shape of the target geographical corridor.

Benefits of technology

It effectively solves the optimization convergence problem in coverage of narrow, non-convex areas, and achieves smooth energy transition of the beam along the curved corridor, ensuring the continuity and efficient coverage of communication services.

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Abstract

This invention discloses a method for generating satellite communication beams, comprising: acquiring the boundary coordinates of a target geographic corridor and converting them into a satellite angular domain representation; extracting the skeleton curve of the corridor based on the angular domain boundary, and establishing a parameterized beam pattern model distributed along the skeleton curve; constructing a beamforming weight optimization problem, including coverage gain constraints distributed along the skeleton curve, and continuity constraints between adjacent sampling positions located on the skeleton curve; solving the optimization problem to obtain a complex weight vector, and loading it into a beamforming network to drive a phased array antenna. This invention reduces the dimensionality of the two-dimensional regional coverage problem through skeleton curve modeling and explicitly ensures a smooth energy transition of the beam along a curved corridor using continuity constraints, effectively solving the problems of difficult optimization convergence and coverage discontinuity in the coverage of narrow, non-convex regions.
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