Structural Dynamic Response Multi-Densor Data Fusion Based On D-S Theory
Ying Liu · Journal of Tongji University · 2008
Aimed at the problem that the sensor is affected by the environmental noises in the structural monitoring system,Data fusion method is adopted.The Dempster-Shafer theory of evidence was applied to the fusing of the acceleration signals acquired by multi-sensor system at the same point of a structure.First,the true value of the structural dynamic response was calculated out,and then by adding different white noise to the true value to simulate the actual signals.The analysis and comparison of the correlative coefficient,the peak point and the error value of a set of data show that the signal after fusion is closer to the true value than before,and this method is better than other method such as Kalman filter.