Satellite signal acquisition and tracking method and device, and satellite signal receiver

Abstract

The invention discloses a satellite signal acquisition and tracking method and device, and a satellite signal receiver and a readable storage medium. Because the satellite signal receiver cannot obtain prior information during cold start, obtaining real-time geographic information such as real-time calendar time is easily; after a satellite signal cluster including a plurality of satellite signalsis received, the real-time geographic information is obtained, and the real-time geographic information is input into a pre-trained discrimination model for describing the relationship between the geographic information and satellite types to obtain satellite groups which meet search criteria, and the range of satellites for comparison search is reduced; then, pseudo-codes of the satellites in the satellite groups are used for searching in the satellite signals to obtain preset number of target satellite signals; and finally, the target satellite signals are tracked and locked. Because searching in the whole satellites is not required, the acquisition and tracking signal processing time of the satellite signals is greatly reduced, so that the problem of long time-consuming cold start of the satellite signal receiver can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of signal processing, in particular to a satellite signal acquisition and tracking method, device, satellite signal receiver and readable storage medium. Background technique [0002] Satellite signal receiver is the most basic device for satellite positioning, satellite navigation, real-time speed measurement, and real-time timing. After the US Global Positioning System (GPS), the Russian GLONASS Satellite Navigation System (GLONASS), and the European Galileo Satellite Navigation System (Galileo satellite navigation system), my country has also established the Beidou Navigation Satellite System. Artificial satellites are closely related to our lives. . Artificial satellites transmit and modulate satellite signals with related ranging codes and navigation messages, and satellite signal receivers on the earth receive and process satellite signals, mediate satellite signals from them, and use these signals to ...

AI Technical Summary

Problems solved by technology

It takes at least 60 seconds for such a start-up method to complete the signal calculation from the reception of the satellite signal, which is unbearable for users with high dynamic and immediacy requirements.

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