Title :
Data Fitting of Weak Signal Based on the Least Square Method
Author :
Yao, Lin ; Liu, Daowen
Author_Institution :
Educ. Technol. & Inf. Dept., Xuchang Univ. Xuchang, Xuchang, China
Abstract :
The system of weak strain data acquisition and processing is designed to enable the experiments of mechanics of materials to execute automatically. When the data have obtained from the apparatuses, it is critical to find the relationship between them. The accuracy and correctness of the data fitting function determines the reliability of the results. So some solutions should be adopted to solve the problem, and find a suitable method in this paper.
Keywords :
data acquisition; least squares approximations; signal detection; strain measurement; least square method; material mechanics; mathematics model; weak signal data fitting function; weak strain data acquisition system; weak strain data processing design; Building materials; Capacitive sensors; Data acquisition; Educational technology; Least squares methods; Mathematical model; Mathematics; Process design; Signal design; Signal processing;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3692-7
Electronic_ISBN :
978-1-4244-3693-4
DOI :
10.1109/WICOM.2009.5305194
