测试科学与仪器2023，Vol.14Issue(4)：379-386,8.DOI:10.3969/j.issn.1674-8042.2023.04.001
基于希尔伯特-黄变换的电阻传感器阵列同步扫描测量方法
A synchronous scanning measurement method for resistive sensor arrays based on Hilbert-Huang transform
摘要
Abstract
The current spectrum analysis method cannot perform synchronous scanning on the resistance sensor array. The Hilbert-Huang transform (HHT) with improved empirical mode decomposition is innovatively applied for the spectrum analysis of the response signal of the resistive array. First, the endpoint effects in the processing of empirical mode decomposition (EMD) are introduced. Aiming at the endpoint effect phenomenon in processing of EMD, the extension method which is appropriate to deal with the response signal of the resistive array is obtained by comparing three different kinds of extension methods. Then the improved algorithm is used for the spectrum analysis of the response signal of the resistive array. And the relations of all units' resistance and time, frequency and amplitude are obtained. In this way, all elements in the whole array can be accessed and measured. Finally, the effectiveness of the improved HHT is verified by simulation experiments. The results show that the improved algorithm can obtain the precise time-frequency distribution of all the elements in the array, which can promote the application of measurement method with AC power source in the field of resistive sensor array measurement.关键词
希特伯特-黄变换(HHT)/电阻传感器阵列/交流测量/端点效应/频谱分析Key words
Hilbert-Huang transform (HHT)/resistive sensor array/AC measurement/endpoint effect/frequency spectrum analysis分类
信息技术与安全科学引用本文复制引用
同志学,冯文军,曹恒源,常胜,张学锋..基于希尔伯特-黄变换的电阻传感器阵列同步扫描测量方法[J].测试科学与仪器,2023,14(4):379-386,8.基金项目
Shaanxi Provincial Department of Education Key Laboratory Research Project(No.20JS063) （No.20JS063）
