High-speed signal acquisition and forwarding method based on embedded 10Gbps network hardware protocol stack

Abstract

The present invention provides a high-speed signal acquisition and forwarding method based on an embedded 10Gbps network hardware protocol stack. On a high-performance FPGA platform, a signal acquisition function, and 10Gbps Ethernet transmitting and receiving paths comprising an application layer, a network layer, an MAC layer and a physical layer are implemented on one FPGA through combination of the IP core of the 10Gbps network hardware protocol stack and the IP core of 10Gbps MAC, so that the high-speed acquisition and forwarding method that is used for sending acquired data encapsulated in an IRIG format to a rear-end signal processing server through the high-speed 10Gbps Ethernet to be further processed is realized. According to the signal acquisition and forwarding method and a signal acquisition and forwarding system, intermediate frequency signals in a plurality of paths can be collected, and collected intermediate frequency data is forwarded to a high-speed Ethernet cluster consisting of nodes such as a switch, a server, and a storage array at a high speed. According to the acquisition and forwarding method, the signal acquisition function and the signal processing function are separated in the system architecture, so that the method has the characteristics of simple system architecture, smaller equipment, high transmission speed, low overall power consumption and so on.

Description

technical field [0001] The invention relates to a method for realizing high-speed signal collection and forwarding based on an embedded ten gigabit network hard protocol stack, and belongs to the technical field of high-speed networks of embedded systems. Background technique [0002] High-speed signal acquisition and forwarding is a data transmission technology that encapsulates or processes intermediate frequency digital signals obtained through RF down-conversion and A / D quantization, and forwards them through high-speed Ethernet. It is an important technology in current measurement and control communications. With the application of some high-performance payloads (such as high-resolution CCD cameras) on spacecraft, the data volume and rate of space-to-earth communication have increased greatly. The need for communication capabilities is becoming more and more urgent. In the soft demodulation technology, it is necessary to use a signal acquisition and forwarding system t...

AI Technical Summary

Problems solved by technology

[0004] The technical problem of the present invention is: to overcome the deficiencies in the prior art, propose a high-speed signal acquisition and forwarding implementation method based on the embedded 10 Gigabit network hard protocol stack, and solve the problem of transplanting the software protocol stack in the microcontroller and the built-in protocol stack in the ASIC The problems of transmission efficiency, integration and portability cannot be taken into account at the same time, and a solution is provided to realize multi-channel signal acquisition, buffering, and data transmission directly through an embedded network with 10 Gigabit performance on an FPGA. It can directly solve the problem of insufficient front-end signal acquisition and transmission capabilities in soft demodulation technology

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