Recognizing frequency characteristics of gas sensor array  

作　　者：林继鹏 刘君华 

机构地区：[1]School of Electrical Engineering,Xi'an Jiaotong University

出　　处：《Journal of Pharmaceutical Analysis》2007年第2期126-130,共5页药物分析学报（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China (No60276037)

摘　　要：A novel method based on independent component analyzing (ICA) in frequency domain to distinguish the frequency characteristics of multi-sensor system is presented. The conditions of this type of ICA are considered and each step of resolving the problem is discussed. For a two gas sensor array, the frequency characteristics including amplitude-frequency and phase-frequency are recognized by this method, and cross-sensitivity between them is also eliminated. From the principle of similarity, the recognition mean square error is no more than 0.085.A novel method based on independent component analyzing (ICA) in frequency domain to distinguish the frequency characteristics of multi-sensor system is presented. The conditions of this type of ICA are considered and each step of resolving the problem is discussed. For a two gas sensor array, the frequency characteristics including amplitude-frequency and phase-frequency are recognized by this method, and cross-sensitivity between them is also eliminated. From the principle of similarity, the recognition mean square error is no more than 0.085.

关 键 词：gas sensor array independent component analyzing impulse response CROSS-SENSITIVITY 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]