通信学报2025，Vol.46Issue(2)：123-135,13.DOI:10.11959/j.issn.1000-436x.2025021
基于非同步测量的高分辨率声源定位
High-resolution sound source localization based on non-synchronous measurements
摘要
Abstract
Concerning the issues of broad main lobes and susceptibility to sidelobe interference in non-synchronous mea-surements of sound source localization methods under low signal to noise ratio conditions,a non-synchronous meas-urement sound source localization algorithm based on subspace approximation algorithm and truncated functional beam-forming was proposed.Initially,the deficient cross-spectral matrix was performed using singular value decomposition,and the primary singular vectors were retained by a truncation threshold to construct a low-dimensional subspace.Subse-quently,the deficient cross-spectral matrix was projected onto this subspace,and the optimal solution for matrix comple-tion was sought.After completion,sound source localization was achieved by using a truncated function beamforming al-gorithm.Simulation and experimental results demonstrated that,compared with algorithms based on nuclear norm mini-mization and its derivative models,the proposed algorithm effectively reduces the width of the main lobes and the num-ber of sidelobes under low signal to noise ratio conditions.The matrix completion error is reduced by an average of 17.6%,and the sound source reconstruction error is reduced by an average of 27%,proving the algorithm's robustness and noise resistance.关键词
非同步测量/声源定位/矩阵补全/子空间逼近Key words
non-synchronous measurement/sound source localization/matrix completion/subspace approximation分类
信息技术与安全科学引用本文复制引用
韦娟,冯鹏,宁方立..基于非同步测量的高分辨率声源定位[J].通信学报,2025,46(2):123-135,13.基金项目
国家自然科学基金资助项目(No.52475132) （No.52475132）
陕西省重点研发计划基金资助项目(No.2024GX-ZDCYL-01-16) （No.2024GX-ZDCYL-01-16）
航空科学基金资助项目(No.20200015053001) （No.20200015053001）
2023西安市重点产业链技术攻关基金资助项目(No.23ZDCYJSGG0006-2023) The National Natural Science Foundation of China(No.52475132),The Key Research and Development Pro-gram of Shaanxi Province(No.2024GX-ZDCYL-01-16),Aeronautical Science Foundation of China(No.20200015053001),2023 Xi'an Key Industrial Chain Technology Research Project(No.23ZDCYJSGG0006-2023) （No.23ZDCYJSGG0006-2023）
