Apparatus and method for determining navigation bit boundary, receiving machine, mobile equipment and method for satellite navigation and positioning

Abstract

A navigation bit boundary determination apparatus and a method therefor. In one example, the navigation bit boundary determination apparatus includes a satellite signal receiving module, a position receiving and clock calibration module, a detection module, a first calculation module, a second calculation module, and a determination module. The satellite signal receiving module is configured to receive a satellite signal from a satellite and record a local receiving time of the satellite signal. The position receiving and clock calibration module is configured to receive a time signal and a position of the navigation bit boundary determination apparatus. The detection module is configured to detect if ephemeris information of the satellite is available. The first calculation module is configured to calculate a coordinate of the satellite. The second calculation module is configured to calculate a transmitting time for the satellite signal. The determination module is configured to determine a navigation bit boundary of the satellite signal.

Description

technical field [0001] The invention relates to the field of satellite navigation and positioning, in particular to a navigation bit boundary determination device and method, a receiver, a mobile device and a satellite navigation and positioning method. Background technique [0002] With the continuous development of electronic industry and computer technology, satellite navigation and positioning technology has been widely used, and has had an important impact on people's daily life, military affairs and other aspects. At present, there are four sets of satellite navigation and positioning systems in the world: China's Beidou, the United States' GPS (Global Positioning System), Russia's "Glonass" and Europe's "Galileo". Among them, the GPS in the United States is the first established and relatively mature satellite navigation and positioning system. [0003] A satellite navigation and positioning system usually includes three parts: the space terminal, the ground terminal...

AI Technical Summary

Problems solved by technology

[0004] During the positioning and / or navigation process of the existing positioning and / or navigation technology using Beidou non-geostationary orbit satellites, bit sign flips may occur every 1 millisecond in the navigation data in the Beidou non-geostationary orbit satellite signals , in order to avoid the loss of signal-to-noise ratio caused by bit sign flipping, the continuous integration time of Beidou non-geostationary orbit satellite signals is short, resulting in low capture sensitivity

In addition, it is necessary to perform bit synchronization on the captured Beidou non-geostationary orbit satellite signals. Since bit synchronization takes a certain amount of time, it will make it impossible for Beidou non-geostationary orbit satellites to quickly participate in positioning and / or navigation

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