Research on the near field sound source localization method for small snapshots

摘要：

　　The performance of standard MVDR algorithm would be decreased sharply when the sampled data is small.In this paper, vector MVDR algorithm and the diagonal loading are proposed to improve the robustness.Firstly, the sample date covariance matrix is whitened to obtain more uniform noise, and then use the standard deviation of covariance matrix as the loading amount to complete diagonal loading.Finally, the effectiveness and robustness of the proposed algorithm is verified by simulation.Simulation results reveal that it has higher positioning accuracy with small sample, with the increase of SNR and snapshots, the estimations RMSE of target location decreases continuously.

关键词： small snapshots near field localization diagonal loading vector hydrophone MVDR

作者: Qing Ji Jin Fang Cheng

作者单位: Department of Weaponry Engineering, Naval University of Engineering, Wuhan, China

会议类型: 国际会议

会议名称: The 28th International Conference on Vibroengineering (第28届国际振动工程会议)

会议地点: 北京

会议语种:英文

页码: 288-293

在线出版日期: 2017-10-19（万方平台首次上网日期，不代表论文的发表时间）