A CORS data coding transmission method suitable for long-distance communication

Abstract

The invention discloses a CORS (continuously operating reference system) data coding and transmitting method applicable to long-distance communication. The CORS data coding and transmitting method includes steps of receiving data by the aid of Beidou receivers on Beidou CORS vehicles and transmitting the data to CORS service systems; grouping differential data information in the CORS data; respectively coding two groups of information in an anti-interference manner; transmitting the coded data to high-power ultra-short wave radio sets via ultra-short wave interfaces by the aid of industrial control computers; transmitting the data to long-distance receiving-side radio sets by the aid of the high-power ultra-short wave radio sets to completely transmit the data; transmitting the received data to the industrial control computers by the aid of the receiving-side radio sets and decoding the received data by the aid of the industrial control computers; transmitting the decoded CORS data to background servers to completely transmit the CORS data. The CORS data coding and transmitting method has the advantages that CORS differential data are extracted and coded by the aid of the Beidou CORS vehicles and the high-power ultra-short wave radio sets, so that the CORS data can be credibly transmitted over long distances, the bit error rate of CORS data long-distance communication can be reduced, the communication quality can be improved, and the CORS data coding and transmitting method is particularly applicable to conditions where communication facilities are destructed or communication signals are unavailable.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a CORS data coding transmission method suitable for long-distance communication. Background technique [0002] The Beidou satellite navigation system can provide high-precision, high-reliability positioning, navigation and timing services, and has the service characteristics of combining navigation and communication. Through 19 years of development, this system has been applied in many fields such as surveying and mapping, fishery, transportation, telecommunications, water conservancy, forest fire prevention, disaster reduction and relief, and national security, and has produced significant economic and social benefits, especially in Wenchuan, Sichuan , Qinghai Yushu earthquake relief has played a very important role. [0003] In some disasters or emergency situations, when the infrastructure and communication facilities are damaged, the Beidou CORS vehicle can take advant...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a coding and transmission control that is oriented to one-way transmission of error channels and is suitable for long-distance CORS differential positioning service data broadcasting in view of the defect that communication transmission errors are not considered in the existing CORS base station technology Method, this method realizes the large-scale broadcast service of CORS high-precision positioning data by performing anti-error coding on CORS differential positioning data and controlling the broadcast cycle of different types of data, using Beidou CORS vehicles and high-power ultra-short wave radio stations, and reducing long-term The impact of transmission errors caused by distance communication on CORS service quality and effective use of communication bandwidth

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