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Ultra-wideband pulse-based satellite-bone high-speed data network system

A high-speed data network, pulsed ultra-wideband technology, applied in the field of data communication, can solve problems such as restricting the development of UWB technology, and achieve the effect of easy expansion and upgrade, reduction of mass, volume and power consumption, and flexible networking

Inactive Publication Date: 2015-11-25
NAT SPACE SCI CENT CAS
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  • Summary
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  • Claims
  • Application Information

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Problems solved by technology

However, there are currently no UWB-based communication protocols and protocol chips that can be applied to aerospace, which limits the development of UWB technology in high-speed communication in spacecraft

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  • Ultra-wideband pulse-based satellite-bone high-speed data network system
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Embodiment Construction

[0035] The present invention will be further described now in conjunction with accompanying drawing.

[0036] In a satellite, there are usually one or more payloads, which are used to complete various operations such as data collection. The data collected by the payload needs to be transmitted between the payload, or between the payload and the control system of the satellite. The space-borne high-speed data network system based on pulsed ultra-wideband of the present invention is exactly how to realize high-speed data transmission. question.

[0037] refer to figure 1 , the space-borne high-speed data network system based on pulse ultra-wideband of the present invention comprises: space-borne data subsystem 1, payload subsystem 2, satellite data bus 3; Wherein, described space-borne data subsystem 1 comprises a plurality of modules, Such as: on-board computer 11, telemetry and remote control transponder 12, transmitter 13, power supply subsystem 14, attitude and orbit contr...

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Abstract

The invention relates to an ultra-wideband pulse-based satellite-bone high-speed data network system, which comprises a satellite-bone data subsystem, a payload subsystem and a satellite data bus. The satellite-bone data subsystem is connected with the satellite data bus. The payload subsystem includes a payload manager and a payload, and the payload manager is connected with the satellite data bus. The data transmission between the payload manager and the payload is realized based on a wireless network. Driven by the command of the satellite-bone data subsystem, the payload manager controls and manages the payload on a satellite for scientific experiment and space exploration, and is in charge of the data acquisition, data processing, data storage, integrated transmission and data management process of the payload. The communication between the payload manager and the payload is realized based on the wireless network, wherein the communication modes therebetween are composed of WBC-to-WRT mode, broadcast mode, WRT-to-WBC mode and WRT-to-WRT mode.

Description

technical field [0001] The invention relates to the field of data communication, in particular to a space-borne high-speed data network system based on pulse ultra-wideband. Background technique [0002] In the spacecraft, the data of distributed spacecraft subsystems and payloads are unified and integrated through the on-board data bus. The MIL-STD-1553B bus is widely used in spacecraft because of its high reliability and excellent real-time performance. However, the transmission rate of the 1553B bus is only 1Mbps, which is not suitable for high-speed and large-scale data. At present, high-speed data transmission in spacecraft is often implemented by three-wire LVDS cables. LVDS uses a very low voltage swing (about 350mV) to transmit data through differential transmission on two PCB traces or a pair of balanced cables, that is, low-voltage differential signal transmission. The three-wire LVDS signal is divided into three categories: data signal, clock signal and control ...

Claims

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Application Information

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IPC IPC(8): H04B1/7163H04B7/185
Inventor 周莉安军社谢义方熊蔚明李伟良张文璋饶家宁李宪强解彦谭雨茵
Owner NAT SPACE SCI CENT CAS
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