这份报纸基于纤维布拉格栅栏(FBG ) 建议一个影响本地化系统数组和最小的变化无失真的反应(MVDR ) beamforming 算法。线性 FBG 数组,包含七个 FBG 传感器,被用于检测影响信号。Morlet 小浪变换被申请提取影响信号的狭窄乐队的信号。根据 MVDR beamforming 算法,系统认识到单个影响并且多影响本地化。本地化系统在 500 公里癡 上被验证吗??
This paper proposes an impact localization system based on the fiber Bragg grating (FBG) array and minimum variance distortionless response (MVDR) beamforming algorithm. The linear FBG array, which contains seven FBG sensors, is used for detecting impact signals. Morlet wavelet transform is applied for extracting narrow-band signals of impact signals. According to the MVDR beamforming algorithm, the system realizes single-impact and multi-impact localizations. The localization system is verified on a 500mm×500mm×2mm carbon fiber reinforced polymer (CFRP) plate for single-impact and multi-impact localizations. The average locating error and the maximum locating error are 6.8mm and 9.gmm, respectively.