METHOD AND DEVICE FOR PROVIDING PRECISE LOCATION INFORMATION USING ADAPTIVE INTERACTIVE MULTI-MODEL ESTIMATOR

摘要

The objective of the present invention is to remove uncertainty which may be generated between an actual motion of a transportation means being moved in a high speed and a filter bank dynamic model using an adaptive Kalman filter instead of a general Kalman filter that is adopted in an existing interactive multi-model estimator. According to an embodiment of the present invention, a device for providing precise location information using an adaptive interactive multi-model estimator comprises: a sensor to measure a speed and acceleration of a transportation means; an interaction mixing unit to input a uniform speed model initial value and a uniform acceleration model initial value to calculate a uniform speed model mixing value and a uniform acceleration model mixing value; an LS estimator to input the uniform speed model mixing value from the interaction mixing unit to calculate an LS estimator uniform speed model estimation value and to input the uniform acceleration model mixing value from the interaction mixing unit to calculate an LS estimator uniform acceleration model estimation value; a uniform speed model adaptive Kalman filter to input the LS estimator uniform speed model estimation value and a uniform speed model mixing estimation value to calculate a uniform speed model adaptive Kalman filter prediction value; a uniform acceleration model adaptive Kalman filter to input the LS estimator uniform acceleration model estimation value and a uniform acceleration model mixing estimation value to calculate a uniform acceleration model adaptive Kalman filter prediction value; and a combination unit to fuse the uniform speed model adaptive Kalman filter prediction value and the uniform acceleration model adaptive Kalman filter prediction value to calculate a final correction value.;COPYRIGHT KIPO 2015