LOCATION MEASUREMENT METHOD BASED ON PREDICTIVE FILTER

摘要

A measuring method by using a predictive filter for improving the performance about the location measurement of a mobile node is provided to vary weighted value used in the forecast filter by varying the weighted value of a predictive filter. Change of a motion pattern of a mobile node is recognized(401). The weighted values of the predictive filter and position location cycle are modified by corresponding to the change of the pattern of the mobile node(403). The location measured about the mobile node is corrected to the modified value(405). Displacement information corresponding to the variable location change measurement period is transformed to a cylindrical coordinates system.