Method for reducing positioning drift of Big Dipper satellite navigating and positioning device

A technology of navigation and positioning and Beidou satellites, which is applied in the field of satellite positioning, can solve the problems of inaccurate positioning of Beidou navigation and positioning devices, and achieve the effect of improving accuracy and reducing positioning drift
CN102749631AInactive Publication Date: 2012-10-24HAIHUA ELECTRONICS ENTERPRISECHINA CORP
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
HAIHUA ELECTRONICS ENTERPRISECHINA CORP
Publication Date
2012-10-24
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses a method for reducing positioning drift of a Big Dipper satellite navigating and positioning device. The method comprises the following steps: (1) acquiring positioning data received within a certain time period and sequencing the data according to positioning time; (2) calculating the distance between two adjacent positioning points from the first positioning data point, and calculating the running speed of a vehicle according to the time interval between the two positioning points; and (3) deleting the two positioning points if the running speed of the vehicle is over-high and exceeds the possible maximum value in reality. According to the method, the positioning data information in a finally obtained positioning data list is relatively accurate positioning information free of the drift point, the positioning drift of the Big Dipper satellite navigating and positioning device can be reduced and the accuracy of the positioning data can be improved.
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Description

technical field

[0001] The invention relates to satellite positioning technology, in particular to a method for reducing positioning drift of a Beidou satellite navigation and positioning device. Background technique

[0002] The Beidou satellite navigation system developed by my country is the third mature satellite navigation system after the US Global Positioning System (GPS) and Russia's GLONASS. On December 27, 2011, my country's self-constructed Beidou satellite navigation system officially started trial operation, providing continuous navigation, positioning and timing services to China and surrounding areas, and various positioning equipment based on Beidou satellite navigation system were also officially put into use. In addition, the US GPS satellite positioning technology has a history of decades of development, the technology is very mature, and its positioning equipment also covers all aspects of social life. However, the rapid development of the Beidou satelli...

Claims

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