MULTI-FREQUENCY COMPONENT ANALYSIS OF BUILDING OSCILLATION BASED ON GA
Qin Shiwei 1,2) ;Gu Chuan 1) ; and Pan Guorong 1)
1)Department of Surveying and Geo-Informatics, Tongji University, Shanghai 2000922)Department of Civil Engineering, Shanghai University, Shanghai 200072
Abstract Multifrequency component analysis method of building oscillation signal based on spectral analysis proposed previously is an approximate one, as the error is quite large. A new method based on genetic algorithm(GA) is proposed in this paper. In order to explain the advantages of GA identification method compared with spectral identification method and the feasibility of the application to multifrequency component analysis of building oscillation signal, a set of simulated signal(without noise and with random white noise) and a set of building oscillation observations were adopted. Both the methods were applied to analyze the multifrequency components of both sets of signal and the results were compared. Comparison consequence indicates that GA identification method has superiority over spectral identification method, and can be preferably used in actual engineering.
Key words ：
multifrequency component
building oscillation
genetic algorithm(GA)
spectral analysis
simulative test
Received: 01 January 1900
Corresponding Authors:
Qin Shiwei
Cite this article:
Qin Shiwei,Gu Chuan ,and Pan Guorong . MULTI-FREQUENCY COMPONENT ANALYSIS OF BUILDING OSCILLATION BASED ON GA[J]. , 2008, 28(4): 121-124.
Qin Shiwei,Gu Chuan ,and Pan Guorong . MULTI-FREQUENCY COMPONENT ANALYSIS OF BUILDING OSCILLATION BASED ON GA[J]. jgg, 2008, 28(4): 121-124.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2008/V28/I4/121
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