基于聚類算法的星載ADS-B波束自適應(yīng)調(diào)整方法

打開(kāi)文本圖片集

中圖分類號(hào)： V19 文獻(xiàn)標(biāo)志碼：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

廣播式自動(dòng)相關(guān)監(jiān)視（automaticdependentsurveillancebroadcast，ADS-B）技術(shù)是國(guó)際民航組織為提高空管全球化效率提出的集監(jiān)視和通信于一體的新一代監(jiān)視技術(shù)。（剩余12774字）