Satellite ephemeris forwarding method and system, terminal and medium

Abstract

The invention provides a satellite ephemeris forwarding method. The satellite ephemeris forwarding method comprises the following steps of: setting parameter information, comprising framing information and an ephemeris forwarding mode, of a satellite ephemeris forwarding system; carrying out self-positioning and acquiring local time and position information of the satellite ephemeris forwarding system; selecting an ephemeris forwarding working mode and capturing and tracking a satellite signal emitted by an outdoor visible satellite or a satellite signal simulator; analyzing the satellite signal to obtain corresponding satellite ephemeris information; judging the validity of the satellite ephemeris information, retaining the valid satellite ephemeris information, and eliminating the invalid satellite ephemeris information; framing the valid satellite ephemeris information according to the framing information; and selecting an ephemeris forwarding mode, forwarding the framed valid satellite ephemeris information to an external receiver, and displaying the system state of the satellite ephemeris forwarding system. According to the invention, the designed satellite ephemeris forwarding system is used for acquiring a satellite real-time signal and forwarding the analyzed valid ephemeris information to the external receiver, so that the first positioning time is shortened, and rapid positioning is realized.

Description

technical field [0001] The invention relates to the technical field of positioning, navigation and control, in particular to a satellite ephemeris forwarding method, system, terminal and medium. Background technique [0002] With the continuous development of artificial satellite technology, satellite positioning and navigation technology based on ephemeris information has been widely developed. However, when the receiver is powered on but cannot receive satellite signals, it cannot obtain valid ephemeris information by itself. At this time, it is necessary to collect effective ephemeris information through other devices and forward the ephemeris information to the receiver to facilitate rapid positioning. [0003] The ephemeris information used by traditional receivers is generally downloaded from the public network and loaded into the receiver, but for receivers that need to quickly locate multiple frequency points, the ephemeris information downloaded from the public net...

AI Technical Summary

Problems solved by technology

[0003] The ephemeris information used by traditional receivers is generally downloaded from the public network and loaded into the receiver, but for receivers that need to quickly locate multiple frequency points, the ephemeris information downloaded from the public network cannot guarantee its valid age and positioning Accuracy, and more importantly, the satellite ephemeris information of the military code system cannot be obtained from the public network

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