Remote sensing data entry processing structure based on FPGA system

Abstract

Disclosed is a remote sensing data entry processing structure based on an FPGA system. A double-FPGA structure is adopted. When data are received, an interface sub-board receives the data through an FMC interface; a processing module processes the data correspondingly and transmits the data to one FPGA through LVDSs; a DDR3 stores the multiple paths of LVDSs in storage areas of corresponding channels, and reports interruption to an upper computer through a PCIE bus module; the upper computer receives an interruption signal and sends a DMA request to the corresponding channels; the PCIE bus module reads the data of the corresponding channels from the DDR3 and transmits the data to the upper computer. When the data are sent, the upper computer transmits the data to be sent to the DDR3 through a PCIE bus, transmits the data to the other FPGA through the LVDSs, converts the data to be of the corresponding data format and transmits the data to the interface sub-board through the FMC interface. By means of the remote sensing data entry processing structure based on the FPGA system, circuit isomerism between different devices is eliminated, design risks caused by circuit design are avoided, design difficulty is reduced, the module multiplex degree is improved, and the research and development period is shortened.

Description

technical field [0001] The invention mainly relates to an FPGA system-based remote sensing data input processing structure, which is mainly used in the field of ground remote sensing data processing, and belongs to the technical field of data interaction between external high-speed data processing equipment and computers. Background technique [0002] Application requirements promote the rapid development of satellite high-speed remote sensing data processing technology. With the development of my country's space technology and communication technology, the demand for satellite remote sensing data processing technology is becoming more and more urgent. At present, various satellites, such as new generation communication satellites, remote sensing satellites, relay satellites, ocean Internet, as well as space exploration, manned spacecraft and space stations, all put forward urgent requirements for accelerating the development of space remote sensing data processing technology...

AI Technical Summary

Problems solved by technology

[0004] At present, my country's high-speed data receiving and processing equipment mainly uses the second generation bus (PCI, PCI-X, etc.) Implementation method based on FPGA high-speed remote sensing data input architecture to meet the requirements of high-speed data reception and processing

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