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The method of dual-network fusion IP transmission and processing measurement and control signals

A dual-network fusion and signal technology, applied in the field of aerospace measurement and control, can solve the problems of multi-channel data time inconsistency, packet loss, bit error, etc., to achieve the effect of solving signal jitter, overcoming data jitter, and increasing reliability

Active Publication Date: 2022-04-01
10TH RES INST OF CETC
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AI Technical Summary

Problems solved by technology

Multi-channel signals are collected at the same time by AD at the digital IP front-end to ensure that the source of the signal generation is simultaneous, but the network transmission is serial transmission, so the multiple channels of data arriving at the receiving end are inconsistent in time
And during network transmission, a small amount of packet loss or bit error may occur

Method used

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  • The method of dual-network fusion IP transmission and processing measurement and control signals
  • The method of dual-network fusion IP transmission and processing measurement and control signals

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Embodiment Construction

[0018] refer to figure 1 . According to the present invention, two identical 10-gigabit switches are connected between the radio frequency digital front-end equipment receiving multi-channel analog radio frequency signals and the IP-based baseband equipment, and two 10-gigabit switches correspondingly connected to the 10-gigabit switch are set at the front end of the IP-based baseband equipment. Mega-network card, and two network port processing units of the same circuit connected in parallel to the frame start reading unit. The radio frequency digital front-end equipment generates two digital IP data packets from the received multi-channel analog radio frequency signals, which are respectively connected to two 10-gigabit switches through optical fibers. The two data sources are respectively sent to the network port 1 processing unit and the network port 2 processing unit. The two network port processing units complete the CRC check, deframe, and multi-channel data alignment ...

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Abstract

The invention discloses a dual-network fusion IP-based transmission and processing method for measurement and control signals, aiming to solve the problems of network transmission signal jitter, congestion, packet loss, and uncertain delay. The present invention is realized through the following technical solutions: the two 10 Gigabit network cards at the front stage restore two data sources, and send them to the network port 1 processing unit and the network port 2 processing unit respectively; the frame start reading unit generates periodic start frames The read pulse is sent to each channel processing unit through the above two network port processing units. Each channel processing unit processes the input data frame and sends it to the frame alignment unit in parallel, and aligns the parallel data of each channel in time. Processing, the parallel data of each channel is strictly aligned in time and then sent to the dual-network alignment and fusion unit for dual-network fusion processing. The dual-network alignment and fusion unit aligns the data frames and fuses them into a total channel according to the total number of channels of each link Half of the number outputs the fused data and sends it to the back-end demodulation unit.

Description

technical field [0001] The invention relates to a method applicable to the field of aerospace measurement and control, in particular to an aerospace ground measurement and control terminal station, and a method for direct digital IP transmission and processing of measurement and control signals. Background technique [0002] The measurement and control system is an important part of ballistic testing and aerospace engineering. It is not only an important support system for space vehicles and space launch, in-orbit and return stages, but also an important link in the large loop of operation. The ground measurement and control terminal station completes the telemetry reception, remote control, tracking and data transmission functions of the target (satellite, spacecraft). [0003] The traditional ground measurement and control terminal station adopts a "chimney" structure, and the signal processing is transmitted to a specific satellite or spacecraft through series-connected e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L45/243H04L45/247
CPCH04L45/24H04L45/22
Inventor 张帆曾富华赵星杨博卢欧欣
Owner 10TH RES INST OF CETC
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