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Application of GPS in the Study of Vibration Characteristics

LUO Zhi cai,CHEN Yong qi,LIU Yan xiong (Department of Land Surveying and Geo Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong,China)  
In the paper, some vibrating experiments are designed for the scientific justification and feasibility of using kinematic GPS technology to identify the vibrating characteristics. The spectral analysis results indicate that clear and accurate vibrating characteristics such as relative displacements and frequencies of at least about 0.25F can be derived from GPS observations with sampling frequency F. This capability can be applied to safety monitoring purposes for large structures.
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