A processing method for positioning drift

Abstract

A positioning drifting processing method includes the steps that when a positioning terminal is switched from a non-positioning state to a positioning state, judging the state of the positioning terminal at the moment; if the positioning terminal is static, carrying out filtering processing according to static drifting, namely setting filtering delay time according to accumulation time when the positioning terminal is not positioned and the deviation distance between the positioning terminal and a previous effective positioning point, and then in the filtering delay time, obtaining longitude and latitude average values of multiple effective sample points in the filtering delay time to position novel effective position points according to a static position locking algorithm; if the positioning terminal is dynamic, refreshing positioning points by means of received positioning data according to the accumulation time when the positioning terminal is not positioned. The method is suitable for the GPS satellite positioning technology, Beidou satellite positioning technology and other positioning technologies, accords with statistic rules, is simple in data processing, low in implement cost and wide in application range, and meanwhile supports a real-time positioning data processing mode and back-end positioning data processing mode.

Description

technical field [0001] The invention relates to the technical field of satellite positioning, in particular to a positioning drift processing method applicable to GPS satellite positioning, Beidou satellite positioning and the like. Background technique [0002] At present, my country's GPS positioning is widely used, from various navigation terminals, location monitoring terminals to mobile phone location Weibo, etc., the performance requirements for satellite positioning are also gradually increasing, and the positioning performance mainly depends on the integrated GPS receiving module of these terminal devices. The performance of the group, whether it is a chip-level or module-level receiving module, is collectively referred to as a GPS receiver hereinafter. Under the existing GPS positioning technology, because satellite signals are affected by complex factors such as changes in the atmospheric ionosphere, cloud cover, and multipath reflections from surrounding tall build...

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to perform certain mathematical processing on the positioning data in the static state of the positioning terminal and the switching process between the static state and the moving state according to the characteristics that the static drift of the positioning terminal conforms to the circular probability distribution, so as to determine the appropriate state switching conditions and The locked position, thus effectively solving the problem of static drift of the positioning terminal

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