Beidou double-model user machine based on HDLC protocol

Abstract

The invention discloses a Beidou double-model user machine based on an HDLC protocol. The machine comprises an RDSS navigation signal processing unit, a GNSS navigation signal processing unit, a duplexer, an HDLC interface module and a power module, two independent links are adopted for the GNSS navigation signal processing unit and the RDSS navigation signal processing unit, and the two links aremutually independent and do not influence each other. The Beidou double-model user machine has the advantages that the RNSS navigation positioning function and RDSS short message communication function of Chinese Beidou second-generation are fully used, the position precision equal to that of GPS can be achieved, the self-position and state information can also be sent out under the condition ofnot additionally using other communication means, and the machine is low in input and running and maintenance cost and takes effect quickly; the application difficulty of highly-dynamic Beidou RDSS short message communication is overcome, and the machine is suitable for airborne and missile-borne highly-dynamic application environments.

Description

technical field [0001] The invention relates to a Beidou user machine, in particular to a Beidou dual-model user machine based on the HDLC protocol, and belongs to the technical field of satellite communication. Background technique [0002] At present, most Beidou user machines are vehicle-mounted and ship-borne, which can only be used in low-dynamic conditions, and cannot meet the high-dynamic use environments of airborne and missile-borne. [0003] Although high-dynamic GNSS reception has been applied in airborne and missile-borne applications, there are few high-dynamic Beidou dual-model user machines based on the combined technology of GNSS and RDSS. [0004] In addition, most Beidou user machines exchange data with other devices through serial ports and network ports, and rarely use HDLC bus. Contents of the invention [0005] In order to solve the deficiencies of the prior art, the purpose of the present invention is to provide a Beidou dual-model user machine base...

AI Technical Summary

Problems solved by technology

[0002] At present, most Beidou user machines are vehicle-mounted and ship-borne, which can only be used under low dynamic conditions, and cannot meet the high dynamic use environment of airborne and missile-borne

[0003] Although high-dynamic GNSS reception has been applied in airborne and missile-borne applications, there are few high-dynamic Beidou dual-model user machines based on the combined technology of GNSS and RDSS

[0004] In addition, most Beidou user machines exchange data with other devices through serial ports and network ports, and seldom use HDLC bus

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