Method of positioning receiver in global satellite navigation and positioning system and receiver

Abstract

The invention discloses a method of positioning a receiver in a global satellite navigation and positioning system and a receiver. The method comprises steps: corresponding first local time of each satellite in at least four satellites in participation in receiver positioning at the time is acquired, wherein the first local time is the time of receiving a navigation message by the receiver when the satellite participates in receiver positioning at the time; the difference value between the first local time corresponding to each satellite and second local time is determined, wherein the second local time is the time of sending the navigation message when the satellite participates in receiver positioning last time; according to the difference value and the time of sending the navigation message when the satellite participates in receiver positioning last time, the time of transmitting the navigation message when each satellite participates in positioning at the time is determined; and according to the time of transmitting the navigation message when each satellite participates in positioning at the time, the position of the receiver is determined. Frame synchronization does not need to be carried out on the navigation message, and the positioning speed of the receiver is improved.

Description

technical field [0001] The invention relates to the technical field of satellite communication and navigation, in particular to a receiver positioning method and receiver in a global satellite navigation and positioning system. Background technique [0002] With the development of contemporary society and economy, the increasing maturity of the transportation industry and the diversification of human travel methods, the scope of people's communication with the outside world is becoming wider and wider. Today, with the ever-changing road traffic, the road condition information is becoming more and more complicated, but with the emergence of GPS (Global Positioning System, Global Positioning System), people can no longer be limited by the geographical range and distance when they travel, as long as they have a GPS receiver. Shuttle freely in completely unfamiliar cities. [0003] There are three ways to start a GPS receiver: cold start, warm start, and hot start. The hot sta...

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Problems solved by technology

[0005] In order to speed up the positioning speed of the receiver after starting, the present invention provides a receiver positioning method and receiver in the global satellite navigation and positioning system to solve the problem of using the frame synchronization method of the navigation message in the prior art to perform the positioning of the receiver , resulting in long positioning time, slow positioning speed and low efficiency technical problems

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