传感技术学报2016，Vol.29Issue(12)：1810-1814,5.DOI:10.3969/j.issn.1004-1699.2016.12.005
基于去均值归一化互相关方法的 复合材料板低速冲击定位
The Low Velocity Impact Localization Based on Mean-Residual Normalized Cross-Correlation for Composite Plate*
摘要
Abstract
In order to localize the low velocity impacts(LVI)for composite structure without prior information,an im?pact localization method based on mean-residual normalized cross-correlation was proposed. The paper adopted nor?malized cross-correlation method to normalize all impact sample signals and undetermined signals firstly. After that, the complex cross-correlation values were calculated and the localization reference area was determined. Finally , the impact location was estimated by using cross-correlation results between sample signals and undetermined sig?nals. The experimental results show that the proposed method can evaluate the LVI positions for composite plate ac?curately,the maximal error is 34.76 mm and the standard error is 11.07 mm.关键词
光纤布拉格光栅/冲击定位/去均值归一化互相关/复合材料板Key words
optic-fiber Bragg grating/impact localization/mean-residual normalized cross-correlation/composite plate分类
信息技术与安全科学引用本文复制引用
陆观,徐一鸣,邱自学,梁大开..基于去均值归一化互相关方法的 复合材料板低速冲击定位[J].传感技术学报,2016,29(12):1810-1814,5.基金项目
国家自然科学基金项目(61273024,51307089) （61273024,51307089）
交通运输部应用基础研究项目(2014319813180) （2014319813180）
江苏省产学研前瞻性联合研究项目(BY2015047-11) （BY2015047-11）
江苏省教育厅面上项目(14KJB510030) （14KJB510030）
南通大学自然科学研究专项项目(13ZJ003) （13ZJ003）
