基于聚类算法的星载ADS-B波束自适应调整方法

打开文本图片集

中图分类号： V19 文献标志码：A DOI：10.12305/j.issn.1001-506X.2025.05.30

Abstract：Satellite-based automatic dependent surveillance broadcast（ADS-B）has effectively solved the problem that terrestrial-based stations cannotcover the global airspace，butit stillfaces challenges suchas long satelite-ground propagation distance，large atenuation，multiple beam coverage targets，and serious signal conflicts.A digital phasedarray antenna with 25elementsand19 sub-beams evenly distributed is designed to solve the problemof serious signal conflict and high probability of aircraft missing detection.First，clustering using representatives is performed on the samples，and then nonlinear optimization of beam direction and coverage areais performed according to the results，in order to reduce signal conflict and improve aircraft detection probability.The simulation results show that the detection probability of aircraft is increased by 9%- 13% ，the calculation time is decreased by 87%-95% ，and the figure of merit is increased by 85%-94% （204 compared with the existing research algorithm.

Keywords：satelite-based automatic dependent surveilance broadcast （ADS-B）；digital phased array multi-beam synthesis；adaptive beamforming；clusteringalgorithm

0 引言

广播式自动相关监视（automaticdependentsurveillancebroadcast，ADS-B）技术是国际民航组织为提高空管全球化效率提出的集监视和通信于一体的新一代监视技术。（剩余12774字）