Zero drift of mobile terminal and double-mould position and single-mould positioning method

The invention relates to a zero drift solving method of a movable termination and the application thereof to double mode location and single mode location. The zero drift of the movable termination is projected in definition interval X (a, b) according to ride travel of the movable termination; in the actual travel road condition trails f(x) of the movable termination and a project curve g(x) in the X area, difference value function F(x) on any probable value point is in a set area (-d, d), therefore, the movable termination travelling in the definition interval X is the zero drift. The zero drift solving method of the movable termination is as follows: firstly, discarding a point with larger location run-out by linear interpolation and filtration calculation, and smoothing treatment is carried out; then the research of map-matching algorism is carried out based on cost function, the zero drift of the vehicle location is finished. The disclosed technical proposal in the invention is applied to the movable termination, in particular to the location of the vehicles, thus leading the location of the vehicles to be very accurate and effectively solving the vehicle accurate location existing in the prior art; therefore, the invention has high practicability.