Data transmission method and device based on satellite-borne optical fiber interface

A fiber optic interface and data technology, applied in the field of data transmission methods and devices based on satellite-borne fiber optic interfaces, can solve problems such as difficult to ensure stable transmission and zero bit errors, to ensure link reliability, solve bit errors, and save costs Effect

Active Publication Date: 2020-12-22
XIAN INSTITUE OF SPACE RADIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Coupled with environmental changes such as temperature and radiation, it is difficult to ensure stable transmission and zero bit errors

Method used

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  • Data transmission method and device based on satellite-borne optical fiber interface
  • Data transmission method and device based on satellite-borne optical fiber interface
  • Data transmission method and device based on satellite-borne optical fiber interface

Examples

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Embodiment 1

[0070] refer to figure 1 , which shows a flow chart of steps of a data transmission method based on an on-board optical fiber interface provided by an embodiment of the present invention, as shown in figure 1 As shown, the data transmission method based on the on-board optical fiber interface may specifically include the following steps:

[0071] Step 101: Receive the data packet sent by the data sending end through the on-board optical fiber interface.

[0072] The embodiment of the present invention can be applied to the scene where the data receiving end receives the data sent by the data sending end, implements data verification during the data reading and writing process, and instructs the data sending end to retransmit data in combination with the error message frame instruction.

[0073] The on-board optical fiber interface provided in this embodiment can be applied to a data receiving end.

[0074] like figure 2 As shown, an on-board optical fiber interface is set ...

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PUM

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Abstract

The embodiment of the invention provides a data transmission method and device based on a satellite-borne optical fiber interface. The method comprises the following steps: receiving a data packet sent by a data sending end through a satellite-borne optical fiber interface; checking each frame of data in the process of reading and writing the data in the data packet frame by frame; when an error information frame is verified, generating a retransmission signal containing the error information frame; and sending the retransmission signal to the data sending end, so that the data sending end retransmits corresponding data according to the error information frame. According to the embodiment of the invention, the error codes in the high-speed interface transmission process can be effectivelysolved, the link reliability is ensured under the condition of extremely low transmission rate loss, the hardware implementation of the method only uses one dual-port RAM and a small number of Slices,the resource occupancy rate is low, and the higher cost required for changing a system and a hardware circuit is saved.

Description

technical field [0001] The invention relates to the technical field of satellite-borne data transmission, in particular to a data transmission method and device based on a satellite-borne optical fiber interface. Background technique [0002] With the surge in the amount of satellite payload data, smaller, high-speed optical fiber modules have begun to be used in satellite payloads. Traditional high-speed interfaces generally adopt LVDS (Low-Voltage Differential Signaling, low-voltage differential signaling) form and high-speed serial form (TLK2711). The LVDS interface increases the transmission rate by increasing the clock frequency or increasing the parallel bit width, but the LVDS clock frequency cannot be increased without limit, generally it can reach 100MHz, and if it is higher, it will cause timing tension. The LVDS data bit width is not unlimited. When it exceeds a certain amount of data, whether it is ground bounce effect, cable scale or FPGA (Field-Programmable Ga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/00H04B10/60H04B10/69
CPCH04B10/60H04B10/697Y02D10/00
Inventor 璩泽旭袁素春王鸣涛肖化超雷洋飞靳一武小栋
Owner XIAN INSTITUE OF SPACE RADIO TECH
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