The invention belongs to the field of positioning a cell phone base station, and relates to a method for enhancing cell phone base station positioning precision by using Hidden Markov map-matching algorithm. The cell phone base station positioning precision is enhanced by using Hidden Markov map-matching algorithm. The probability of matching a set point to a candidate matching road by the algorithm is called initial matching probability, the probability of conversion of the candidate matching road is called road transfer probability, and the algorithm rapidly finds the path with maximal product of the initial matching probability and the road transfer probability through dynamic programming. Since a vehicle may not change roads frequently during an actual driving process, constraints are introduced in the algorithm for calculating the set point road transfer probability to improve the algorithm performance.
Method for enhancing cell phone base station positioning precision by using Hidden Markov map-matching algorithm
2015-09-09
Patent
Electronic Resource
English
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