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Spatial data processing node device based on CCSDS specifications

A technology of spatial data and processing nodes, which is applied in the direction of electrical digital data processing, special data processing applications, encryption devices with shift registers/memory, etc., which can solve the problems of high overhead, insufficient advantages of TCP/IP protocol, and waste of space links Bandwidth resources and other issues to achieve the effect of saving protocol overhead, improving the degree of generalization, and reducing processing delay

Active Publication Date: 2020-11-10
SHANGHAI SPACEFLIGHT INST OF TT&C & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the TCP / IP protocol has a large overhead, which greatly wastes the precious bandwidth resources of the space link.
Moreover, most of the satellite networks are small and sparse networks, and the advantages of implementing the TCP / IP protocol in the satellite system are insufficient.

Method used

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  • Spatial data processing node device based on CCSDS specifications
  • Spatial data processing node device based on CCSDS specifications
  • Spatial data processing node device based on CCSDS specifications

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0042] Such as figure 1 structure diagram with figure 2 As shown in the functional block diagram, this embodiment provides a spatial data processing node device based on the CCSDS specification, which is realized by using the antifuse FPGA (AX2000-CG624M) of ACTEL Company, including the spatial data forward link baseband based on the CCSDS specification There are three parts: processing module 1, return link baseband processing module 2 and parameter configuration and health telemetry module 3.

[0043] Wherein, the forward link baseband processing module 1 is used to complete baseband data processing functions including data buffering, state monitoring, frame compliance detection, channel reception processing (including channel decoding, decryption, etc.) and data output .

[0044]The return link baseband processing module 2 is used to complete the return link including data buffering, channel multiplexing, data routing, packet analysis, service data priority scheduling, s...

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Abstract

The invention relates to the technical field of spatial data processing, and provides a spatial data processing node device based on CCSDS specifications. The system comprises a forward link basebandprocessing module, which is used for completing baseband data processing functions of a forward link, including data caching, state monitoring, frame conformance detection, channel receiving processing and data output processing; a return link baseband processing module which is used for completing baseband data processing functions of a return link, including data caching, channel multiplexing, data routing, packet analysis, service data priority scheduling, security processing, flow control and channel sending processing; and a parameter configuration and health telemetry module which is used for completing parameter configuration and health telemetry management functions through a bus. The space data processing node device based on the CCSDS specification is designed and completed by adopting the programmable logic FPGA, the direct transmission of space data is achieved, the protocol expenditure is saved, and the data processing delay is reduced.

Description

technical field [0001] The invention relates to the technical field of spatial data processing, in particular to a spatial data processing node device based on the CCSDS specification. Background technique [0002] With the development of aerospace technology, space missions are becoming more and more complex, and the demand for satellite networking and interconnection is increasing. The current space-based network mostly draws on the mature TCP / IP network standard on the ground. The TCP / IP protocol cluster has high requirements for network stability and connectivity; and due to the sparseness of satellites, high mobility, and limited communication range, often There is no continuous, stable, end-to-end path. In addition, space links have the characteristics of high bit error, high delay and link bandwidth asymmetry, so TCP / IP is not suitable for space links. message transmission in . [0003] On the other hand, information transmission generally adopts the CCSDS (Consulta...

Claims

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Application Information

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IPC IPC(8): H04B7/185H04B17/309H04B17/382G06F30/373G06F30/34H04L9/06
CPCH04B7/18519H04B7/18517H04B17/382H04B17/309G06F30/34G06F30/373H04L9/0618
Inventor 濮建福王敏琪白郁蒋志胜吴振广史琴
Owner SHANGHAI SPACEFLIGHT INST OF TT&C & TELECOMM
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